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PubMed2004

Clinimetric evaluation of shoulder disability questionnaires: a systematic review of the literature.

OBJECTIVE: To identify all available shoulder disability questionnaires designed to measure physical functioning and to evaluate evidence for the clinimetric quality of these instruments. METHODS: Systematic literature searches were performed to identify self administered shoulder disability questionnaires. A checklist was developed to evaluate and compare the clinimetric quality of the instruments. RESULTS: Two reviewers identified and evaluated 16 questionnaires by our checklist. Most studies were found for the Disability of the Arm, Shoulder, and Hand scale (DASH), the Shoulder Pain and Disability Index (SPADI), and the American Shoulder and Elbow Surgeons Standardised Shoulder Assessment Form (ASES). None of the questionnaires demonstrated satisfactory results for all properties. Most questionnaires claim to measure several domains (for example, pain, physical, emotional, and social functioning), yet dimensionality was studied in only three instruments. The internal consistency was calculated for seven questionnaires and only one received an adequate rating. Twelve questionnaires received positive ratings for construct validity, although depending on the population studied, four of these questionnaires received poor ratings too. Seven questionnaires were shown to have adequate test-retest reliability (ICC >0.70), but five questionnaires were tested inadequately. In most clinimetric studies only small sample sizes (n<43) were used. Nearly all publications lacked information on the interpretation of scores. CONCLUSION: The DASH, SPADI, and ASES have been studied most extensively, and yet even published validation studies of these instruments have limitations in study design, sample sizes, or evidence for dimensionality. Overall, the DASH received the best ratings for its clinimetric properties.

Disability Evaluation↗
PubMed1998

Screening for hypercholesterolaemia in primary care: randomised controlled trial of postal questionnaire appraising risk of coronary heart disease.

OBJECTIVES: To validate a self administered postal questionnaire appraising risk of coronary heart disease. To determine whether use of this questionnaire increased the percentage of people at high risk of coronary heart disease and decreased the percentage of people at low risk who had their cholesterol concentration measured. DESIGN: Validation was by review of medical records and clinical assessment. The questionnaire appraising risk of coronary heart disease encouraged those meeting criteria for cholesterol measurement to have a cholesterol test and was tested in a randomised controlled trial. The intervention group was sent the risk appraisal questionnaire with a health questionnaire that determined risk of coronary heart disease without identifying the risk factors as related to coronary heart disease; the control group was sent the health questionnaire alone. SETTING: One capitation funded primary care practice in Canada with an enrolled patient population of about 12 000. SUBJECTS: Random sample of 100 participants in the intervention and control groups were included in the validation exercise. 5686 contactable patients aged 20 to 69 years who on the basis of practice records had not had a cholesterol test performed during the preceding 5 years were included in the randomised controlled trial. 2837 were in the intervention group and 2849 were in the control group. MAIN OUTCOME MEASURES: Sensitivity and specificity of assessment of risk of coronary heart disease with risk appraisal questionnaire. Rate of cholesterol testing during three months of follow up. RESULTS: Sensitivity of questionnaire appraising coronary risk was 87.5% (95% confidence interval 73.2% to 95.8%) and specificity 91.7% (81.6% to 97.2%). Of the patients without pre-existing coronary heart disease who met predefined screening criteria based on risk, 45 out of 421 in the intervention group (10.7%) and 9 out of 504 in the control group (1.8%) had a cholesterol test performed during follow up (P<0.0001). Of the patients without a history of coronary heart disease who did not meet criteria for cholesterol testing, 30 out of 1128 in the intervention group (2.7%) and 18 out of 1099 in the control group (1.6%) had a cholesterol test (P=0.175). Of the patients with pre-existing coronary heart disease, 1 out of 15 in the intervention group (6.7%) and 1 out of 23 in the control group (4.3%) were tested during follow up (P=0.851, one tailed Fisher's exact test). CONCLUSIONS: Although the questionnaire appraising coronary risk increased the percentage of people at high risk who obtained cholesterol testing, the effect was small. Most patients at risk who received the questionnaire did not respond by having a test.

Adult↗
PubMed1998

Effect on attendance at breast cancer screening of adding a self administered questionnaire to the usual invitation to breast screening in southern England.

STUDY OBJECTIVE: The primary aim of the research described in this paper was to ascertain whether inclusion of a self administered questionnaire with the usual invitation to routine breast screening affected screening uptake. Secondary aims included establishing appropriate questionnaire distribution and collection methods within the framework of the National Health Service Breast Screening Programme and optimisation of questionnaire design. DESIGN: Randomised study. SETTING: Oxfordshire and West of London Breast Screening Units. PARTICIPANTS/METHODS: 6400 women invited for routine screening mammography were individually randomised to receive either the usual breast screening invitation alone, or to receive the usual invitation accompanied by a self administered questionnaire, to be returned at the time of screening. Participants were then followed up and attendance rates at screening were compared between groups. MAIN RESULTS: Screening attendance rates were similar in women who did and did not receive a questionnaire (71% in each group). Of those who were sent a questionnaire and attended for screening, 77% returned a completed questionnaire. Screening uptake was not affected by the way in which the questionnaire was returned or by whether or not personal details and signed permission for follow up were requested. CONCLUSIONS: The inclusion of a self administered questionnaire accompanying the invitation to breast screening did not adversely affect screening uptake. A high proportion of women completed the questionnaire.

Breast Neoplasms↗
PubMed2006

Screening for developmental delay in the setting of a community pediatric clinic: a prospective assessment of parent-report questionnaires.

OBJECTIVES: Our goal for this study was to prospectively test whether parent-completed questionnaires can be effectively used in the setting of a busy ambulatory pediatric clinic to accurately screen for developmental impairments. Specific objectives included (1) assessing the feasibility of using parent-report instruments in the setting of a community pediatric clinic, (2) evaluating the accuracy of 2 available screening tests (the Ages and Stages Questionnaire and Child Development Inventory), and (3) ascertaining if the pediatrician's clinical judgment could be used as a potential modifier. METHODS: Subjects were recruited from the patient population of a community clinic providing primary ambulatory pediatric care. Subjects without previous developmental delay or concerns noted were contacted at the time of their routine 18-month-old visit. Those subjects who agreed to participate were randomly assigned to 1 of 2 groups and completed either the Ages and Stages Questionnaire or Child Development Inventory. The child's pediatrician also completed a brief questionnaire regarding his or her opinion of the child's development. Those children for whom concerns were identified by either questionnaire underwent additional detailed testing by the Battelle Development Inventory, the "gold standard" for the purposes of this study. An equal number of children scoring within the norms of the screening measures also underwent testing with the Battelle Development Inventory. RESULTS: Of the 356 parents contacted, 317 parents (90%) agreed to participate. Most parents correctly completed the Ages and Stages Questionnaire (81%) and the Child Development Inventory (75%). Predictive values were calculated for the Ages and Stages Questionnaire and the Child Development Inventory (sensitivity: 0.67 and 0.50; specificity: 0.39 and 0.86; positive predictive value: 34% and 50%; negative predictive value: 71% and 86%, respectively). Incorporating the physician's opinion regarding the developmental status of the child did not improve the accuracy of the screening questionnaires. CONCLUSIONS: Three important conclusions were reached: (1) parent-completed questionnaires can be feasibly used in the setting of a pediatric clinic; (2) the pediatrician's opinion had little effect in ameliorating the accuracy of either questionnaire; and (3) single-point accuracy of these screening instruments in a community setting did not meet the requisite standard for development screening tests as set by current recommendations. This study raises important questions about how developmental screening can be performed, and we recommend additional research to elucidate a successful screening procedure.

Ambulatory Care Facilities↗
PubMed2005

[Symptom's questionnaire for gastroesophageal reflux disease].

BACKGROUND: Structured questionnaires are valuable instruments to measure the impact of specific diseases in patient's quality of life through a score and they are available such abroad as in Brazil. Nevertheless, questionnaires based on gastroesophageal reflux disease symptoms are not available in Portuguese. AIM: To develop and validate in Portuguese a specific questionnaire for gastroesophageal reflux disease symptoms. PATIENTS AND METHODS: Velanovich's original questionnaire was translated, one question about "regurgitation" symptom was included and the vocabulary was adjusted to be understood to the scholarity level of the analyzed population. The "face validity" to each question was evaluated by the members of a multidisciplinary panel and a symptom's questionnaire for gastroesophageal reflux disease was developed. The questionnaire was applied to patients with gastroesophageal reflux disease symptoms confirmed by prolonged pH esophageal monitoring. The reproducibility, the comprehension, the time spent to fill out the questionnaire and the correlation coefficient to Johnson-DeMeester's score were measured. RESULTS: The "face validity" was considered satisfactory by the panel and the questionnaire was applied to 124 patients, consecutively. The comprehension of the questionnaire and the time less than 5 minutes to fill out them were observed in all patients (100%). Reproducibility for 10 patients in two different occasions showed a high intra-class correlation coefficient of 0,833. The correlation to the Johnson-DeMeester's score was null. CONCLUSION: This study showed that the symptom's questionnaire for gastroesophageal reflux disease has "face validity", excellent reproducibility, easy comprehension and was quickly answered by patients. The correlation with Johnson-DeMeester's score was null.

Brazil↗
PubMed2006

Is the childhood asthma questionnaire a good measure of health-related quality of life of asthmatic children in Asia?: validation among paediatric patients with asthma in Singapore.

BACKGROUND: Health-related quality of life (HR-QOL) is an important outcome in the treatment of chronic childhood diseases such as asthma. However, this measure is rarely used in young children in Asia because of the difficulty of obtaining valid, reliable instruments that are developmentally and culturally suitable. OBJECTIVES: To select, culturally adapt and validate a disease-specific HR-QOL questionnaire (Childhood Asthma Questionnaire [CAQ]-B) for asthmatic children aged 7-11 years in Singapore, and to understand the relationship between patient-reported HR-QOL domains and physician- or caregiver-rated severity. METHODS: A literature review was conducted to shortlist questionnaires based on pre-specified criteria. A pre-test was conducted to assess suitability and relevance of the questionnaires in Singapore. The selected questionnaire (CAQ-B) was then adapted to more closely reflect the local culture, climate, school system and terminology. Cross-sectional validation was conducted. All asthmatic patients aged 7-11 years attending the respiratory clinic in a paediatric hospital, and without co-morbidities that could significantly affect their HR-QOL, were invited to participate. Patients and their parents or caregivers were asked to complete the relevant sections of the questionnaire before their medical consultation. The child's severity of asthma was rated by the attending physician according to guidelines from the Singapore Ministry of Health. Correlations between the child-reported CAQ-B outcomes and clinical ratings of severity by both parents and physicians were investigated. Internal reliability was tested with Cronbach's alpha, and the overall questionnaire structure was explored using principal axis analysis with oblimin rotation and extraction for factors with Eigen values >1.0. RESULTS: The adapted CAQ-B was validated in 96 patients (40 girls and 56 boys) with a mean age of 8.7 +/- 1.1 years (range 7-11). Most children had no difficulty understanding and completing the questionnaire. The median time taken to complete a questionnaire was 10 minutes. Internal consistency of the various scales ranged from 0.29 to 0.76 (Cronbach's alpha) when items were analysed according to the UK or Australian scale structure. This increased to 0.57-0.76 after item reduction. Physician-rated severity only correlated significantly with the Active Quality of Living (AQOL) domain (r = -0.29, p = 0.02). However, parent/caregiver-rated severity correlated with three of four patient-reported domains: AQOL (r = -0.359, p = 0.001), Passive Quality Of Living (PQOL) [r = -0.271, p < 0.01] and severity (r = 0.367, p < 0.001). The AQOL domain was significantly correlated with the PQOL domain (r = 0.513, p = 0.005). CONCLUSIONS: The children and parents/caregivers in this study found CAQ-B to be a simple and acceptable questionnaire with some evidence of content validity. While two of the domains did not meet internal consistency standards expected of HR-QOL instruments for adults (Cronbach's alpha = 0.70), they were acceptable for children of this age. The patterns of correlation also suggest that parent/caregivers' perception of the severity of a young child's asthma may be a better indicator of a child's HR-QOL than clinical diagnosis of severity. However, further investigation is recommended to improve and validate the internal structure of the scale.

Adolescent↗
PubMed1997

Performance of an NIDDM screening questionnaire based on symptoms and risk factors.

OBJECTIVE: To investigate to what extent a short questionnaire on symptoms and risk factors can be used to identify people at increased risk for undiagnosed NIDDM. RESEARCH DESIGN AND METHODS: A general population sample of 2,364 Caucasian subjects, age 50-74 years, not known to have diabetes, completed a questionnaire on diabetes-related symptoms and risk factors. Subsequently, they underwent an oral glucose tolerance test. A backward stepwise multiple logistic regression was carried out with the absence or presence of newly detected diabetes as the dependent variable and the items from the questionnaire as the independent variables. The selected items were included in a new symptom risk questionnaire, which was evaluated in a different population sample of 786 subjects, age 45-74 years, not known to have diabetes and compared with existing questionnaires. RESULTS: The newly developed symptom-risk questionnaire contains questions concerning the following items, which were independently and significantly (P < 0.05) associated with the presence of previously undiagnosed diabetes: pain during walking with need to slow down, shortness of breath when walking with people of the same age, frequent thirst, age, sex, obesity, parent or sibling with diabetes, use of antihypertensive drugs, and reluctance to use a bicycle for transportation. The 1993 American Diabetes Association questionnaire, the 1995 Herman et aL (17) questionnaire, and the newly developed symptom-risk questionnaire had sensitivities of 59, 72, and 72%; specificities of 57, 55, and 56%; positive predictive values of 5.6, 6.4, and 6.5%; and negative predictive values of 97, 98, and 98%, respectively. CONCLUSIONS: The newly developed symptom-risk questionnaire has good performance characteristics, and the advantage of a variable cutoff makes it a useful screening tool for NIDDM in general practice.

Aged↗
PubMed1998

Assessment of the reliability, validity, and responsiveness of a Spanish Asthma Quality of Life questionnaire.

A Spanish-language questionnaire designed for measuring the impact of asthma on quality of life in adults was developed. It was derived, by the application of a rigorous translation protocol, from a previously validated, English-language Asthma Quality of Life (AQL) questionnaire which had been developed in Australia. The aim of this study was to evaluate the psychometric properties of the Spanish AQL questionnaire using a cross-sectional and longitudinal design. Two hundred ninety-four clinically stable subjects with asthma (168 women, mean baseline forced expiratory volume in 1 sec [FEV1] = 85% predicted), aged 17-70, attended for the initial baseline assessment. All subjects completed the AQL questionnaire and a full history and physical examination were performed. The clinical assessment of severity was based on the classification recommended by the Global Initiative on Asthma (GINA). One week after the initial assessment subjects completed the AQL questionnaire for a second time. Six months later, subjects were assessed clinically and completed all the assessment measures at baseline. Principal components analysis of the AQL questionnaire responses at the baseline visit revealed a structure that was almost identical to that seen in the original English-language questionnaire. The questionnaire was shown to be internally consistent (Cronbach's alpha 0.91 for total score and 0.80-0.86 for the four subscales) and repeatable (intraclass correlation coefficient 0.91 for the total scale and 0.78-0.92 for the subscales). The finding of expected strong correlations with the subject's global assessment of severity (p = 0.70) and dyspnea (p = 0.63), a weak inverse correlation with FEV1 (p = -0.17), and good discrimination among the four GINA severity categories (F3,291 = 37.16, p < 0.0001) supports the construct validity of the questionnaire. AQL scores increased with age (p = 0.31) and were higher in women (p < 0.005). The AQL was responsive to both improvement (mean change 1.02, p < 0.0001) and deterioration (mean change -1.13, p < 0.001) in the severity of asthma over a 6-month period. This disease-specific, Spanish-language AQL questionnaire was shown to have sound psychometric properties which make it suitable for use in cross-sectional or longitudinal studies where it is appropriate to assess the impact of asthma on the quality of life of individual patients.

Adolescent↗
PubMedDate not supplied

International Study of Asthma and Allergies in Childhood (ISAAC) written questionnaire: validation of the asthma component among Brazilian children.

Written questionnaires have been widely used in epidemiological studies of asthma. However, when translated to another language, they must be validated. The International Study of Asthma and Allergies in Childhood (ISAAC) written questionnaire had been previously validated by a comprehensive study, but this had not been done in Brazil. Our objective was to validate the asthma component of the ISAAC self-applicable written questionnaire following its translation to Portuguese. A group of 10 pediatricians and 10 pediatric allergists graded the questions from 0 to 2, and established a maximum score for each question. The questionnaire was answered by parents or guardians of asthmatic children, aged 6 to 7 years old (n = 26) and of nonasthmatic control children of the same age (n = 26); and by asthmatic (n = 33) and nonasthmatic (n = 33) adolescents, aged 13 to 14 years. Half of these individuals responded to the same questionnaire after 2 to 4 weeks. This second response allowed the evaluation of the reproducibility of the ISAAC questionnaire. The maximum global score possible was 14, and cut-off levels of 5 and 6 were found for the groups of 6 to 7 and 13 to 14 year olds, respectively. There was significant agreement between the adolescents' responses to the questionnaire and those from their parents or guardians (74.3%); however, significant discordance was observed for individual questions including "wheezing with exercise." In both age periods the questionnaire was significantly reproducible (Kappa test) (6 to 7 year olds Kw = 1; 13 to 14 year olds Kw = 0.89). In conclusion, the asthma component of the ISAAC written questionnaire was proven to be reproducible, adequate and able to differentiate between asthmatics and controls. Adolescents answered the questionnaire appropriately, however the results suggest that adolescents' parents or guardians underestimate asthma symptoms which interfere little with the adolescent's daily activities.

Adolescent↗
PubMed1999

[Assessment of quality of life of patients with gastroesophageal reflux. Elaboration and validation of a specific questionnaire].

UNLABELLED: Quality of life is frequently impaired in patients with gastro-esophageal reflux. The aim of this study was the validation of a new specific quality of life questionnaire in patients with gastro-esophageal reflux. METHODS: A questionnaire was generated as follows: a) item generation with patients, b) item reduction, c) psychometric validation and comparison to a reference questionnaire (SF36) in patients with symptomatic gastro-esophageal reflux, d) assessment of reproducibility, and e) responsiveness over time. RESULTS: The primary questionnaire was made of 104 items. Two hundred twenty three patients were enrolled, 38 items were selected in 7 dimensions. One item was deleted following a new analysis conducted in 349 patients. Cronbach coefficient ranged from 0.84 to 0.91 for the specific questionnaire and from 0.78 to 0.90 for the SF36 questionnaire. Dimensions of specific questionnaire and SF36 were correlated. Quality of life was more impaired in patients with more frequent symptoms. Severity of endoscopic lesions was partly correlated with impaired quality-of-life. Reproducibility and responsiveness over time were correct. The final valid questionnaire was made of 37 items in 7 dimensions. CONCLUSION: This work is the first validation of a specific questionnaire in French which has the ability to measure quality of life in patients with gastro-esophageal reflux. The use of this questionnaire during therapeutic trials might allow to be more accurate in assessment of treatment efficacy.

Adult↗
PubMedDate not supplied

[Seville Quality of Life Questionnaire: historic outlook of its establishment].

We describe how we developed a new instrument for measuring quality of life, the Seville Quality of Life Questionnaire (SQCQ), and the results we obtained when we applied it to a group of schizophrenic patients. The questionnaire was designed by a group of researchers who set out from the premise that the quality of life of schizophrenic patients is perceived differently from that of healthy people, and tried first of all to demarcate the kind of area which is abnormal in these patients. We then devised a set of items which were assessed for clarity and pertinence by a series of experts, and the questionnaire was assembled in the form of a set of statements, response to which is in the form of a Lickert-type 5-stage scale. The finished questionnaire was administered to 279 schizophrenic patients. At the same time, these patients were also evaluated using the AMDP Psychopathology Scale, the positive and negative symptoms evaluation scale (PANS), Lehman's structured quality of life interview (QOLY), Ruiz and Baca's quality of life questionnaire (QLQ), Camberwell's scale of needs analysis (CANr) and the WHO's handicap assessment scale (DDS). These questionnaires were used to judge the different types of validity of the Seville Questionnaire. The reliability of the questionnaire was measured using Cronbach's alpha coefficient (internal consistency: 0,85 scale of favourable aspects, 0,96 scale of unfavourable aspects). As far as validity was concerned, both scales of the questionnaire were found to have a high level of validity. We also examined the extent to which the psychopathological disorders affected the quality of the schizophrenic person's life, the extent to which his/her needs were being met by the health services, and the patient's degree of disability. From the results obtained, we can say that the SQCQ is a reliable and valid instrument, which is sufficiently sensitive to the clinical changes produced in the course of the natural history of the disease. The SQCQ stands out from the other quality of life questionnaires in that it takes into account aspects of the disease which the patient him/herself is aware of as affecting his/her quality of life.

Humans↗
PubMed1999

Pediatric asthma quality of life questionnaire: validation in children from Singapore.

"Quality of Life" is a multidimensional measure encompassing the physical, emotional and social functioning of the child. The asthma specific questionnaire contains 23 questions (items) in three areas (domains) of activity, symptoms and emotions. The objective of the present study was to validate the Paediatric Asthma Quality of Life Questionnaire "PAQLQ"(copyright 1991 McMaster University). If the questionnaire is valid, a change in the child's asthma will be accompanied by a change in the "Quality of Life" questionnaire score. The questionnaire was administered twice over four weeks and the child's asthma status was assessed concurrently. Two groups were thus identified; Group A = unchanged asthma, Group B = changed asthma. Forty-seven children, aged 7 to 14 years, completed the study. Reliability of the questionnaire shows an intraclass-correlation coefficient of only 0.71. Cross-sectional construct validity was demonstrated by a significant correlation between the whole questionnaire and the clinical asthma score (p<0.001) but not in the separate domains. Longitudinal construct validity was also demonstrated by the significant correlation between change in the total questionnaire score, but not separate domains, with change in the child's asthma score (p<0.05). Responsiveness was shown by a significant difference in the magnitude of the change in the questionnaire score between the two groups (p<0.001), but again not in the separate domains. It was concluded that the questionnaire was validated as a whole but not in as convincing a manner, as has been done by others, and we are therefore in a position to advise caution in its application in our population.

Activities of Daily Living↗
PubMed2000

Cross-cultural adaptation and preliminary validation of a zygosity determination questionnaire for twins in Sri Lanka.

We report the process of adaptation into Sinhala of a questionnaire given to mothers of twins to determine zygosity. Adaptation and validation was carried out in three stages. Firstly, we used a nominal group to translate the English version and to assess the extent of agreement (consensus measurement) on the appropriateness of the translation and resolve disagreement (consensus development). Secondly we used a qualitative interview with 25 mothers of twins. The three main stems of the translated questionnaire were used as a semi-structured interview, and the responses noted verbatim. These were categorised and analysed, and the translated full questionnaire was then presented as closed questions with fixed choice responses. The categorised responses generated during the qualitative interview were compared with the responses to the fixed choices in the full questionnaire. The third stage was the appraisal of the questionnaire by 17 bilingual parents of twins. The source and translated version of the questionnaire were given to them at least 3 days apart. The responses were rated and the total scores were computed to determine the zygosity. This step was carried out to measure the validity and reliability of the Sinhala version. A perfect correlation between the original and adapted version was obtained, with a kappa of 1. The results suggest that the Sinhala version of the questionnaire is conceptually equivalent to the original questionnaire. Comparison of the zygosity determination by using this adapted questionnaire with results from analysis of genetic markers on Sri Lankan twins is needed for final validation of the translated questionnaire.

Cross-Cultural Comparison↗
PubMed2002

[Creating a specific quality-of-life questionnaire in patients with glaucoma: item generation].

The methods for developing Health-Related Quality-of-Life (HRQoL) measures and their application in medical research have demonstrated their utility in various chronic, progressive, or life-threatening diseases. The efforts made to allow the patient's perspective to be included in the methodological framework of evidence-based medicine have been successful. The assumption of a strong relationship between clinical status and daily life is certainly valid in ophthalmology. However, there is a lack of specific HRQoL measures dedicated to ophthalmic diseases. Our work aimed at creating the first Glaucoma-specific Quality of Life scale - the Glau-QoL questionnaire - to provide researchers and physicians with a comprehensive, practical, and validated tool. This article describes the first stage of the process, which consisted in generating items and formatting them in order to create a questionnaire that exhaustively covers the relevant concepts. The whole process was conducted by an expert committee including clinicians and methodologists. The standard recommendations in the development of a HRQoL questionnaire were followed: we first identified existing tools and performed a preliminary collection of concepts from the published literature; we then designed an interview guide with the help of clinicians; a trained psychologist interviewed 22 patients at various disease severity stages (from isolated hypertonic to severely impaired); the interviews were tape-recorded and scripted; general domains and related detailed concepts were identified from the script; they were then analyzed and organized; the format of the questionnaire was set up; and questions were derived from the patient's verbatim to capture the identified detailed concepts. The test questionnaire was applied to seven patients for cognitive debriefing. We finally amended the test questionnaire and designed the pilot questionnaire according to the patients' tests and the clinician's review. The test questionnaire was well accepted by the patients, despite a completion duration ranging from 14 to 35 minutes. The pilot questionnaire contained 151 items, grouped into 5 sections: (1) vision problems, physicians, and daily treatment (49 items); (2) activities of daily living (37 items); (3) self-expression (37 items); (4) vision problems and mood (14 items); and (5) other questions (14 items). The next step of our work will be the item reduction process and the psychometric validation of the Glau-QoL questionnaire.

Activities of Daily Living↗
PubMed2004

[Comparative evaluation of two health-related quality of life questionnaires in patients with sleep apnea].

Symptoms and complications of the obstructive sleep apnea (SAS) lead to a significant impairment of the health-related quality of life (HRQOL) of the affected individuals. Most HRQOL questionnaires have been published in English. Formal process of evaluation has to precede the introduction of a new language version of a HRQOL questionnaire. We conducted a comparative evaluation of the Polish versions of two HRQOL questionnaires: The Calgary Sleep Apnea Quality of Life Questionnaire (SAQLI) and The Functional Outcomes of Sleep Questionnaire (FOSQ). We examined the reliability, validity, stability and responsiveness of both questionnaires. Cronbach's alpha coefficient amounted to 0.94 for both questionnaires, which confirmed their reliability. Scores of both questionnaires highly correlated with measures of daily sleepiness, general health and SF-36 questionnaire scores. Both SAQLI and FOSQ gave stable results, but SAQLI was found to be more sensitive than FOSQ. The Polish version of FOSQ was proved to be a useful tool in cross-sectional assessment of HRQOL in patients with SAS. Stability and responsiveness of the Polish version of SAQLI and normal distribution of its scores make this questionnaire a preferable instrument in repeated assessments of HRQOL in the same group of patients.

Adult↗
PubMed2004

Development and validation of the BSP-BPH (Bononian Satisfaction Profile--Benign Prostatic Hyperplasia) a "disease-specific" questionnaire for the evaluation of health related quality of life in patients with benign prostatic hyperplasia.

OBJECTIVES: Lower Urinary Tract Symptoms (LUTS) associated to Benign Prostatic Hyperplasia (BPH) are very common in middle aged and older men. Since BPH, and the related therapies have a significant impact on a patient's Quality of Life (QoL), the health related quality of life (HQoL) evaluation is becoming an important aspect to be considered. The present study deals with the development and validation of a BPH disease specific questionnaire (Bononian Satisfaction Profile - BSP-BPH), considering HQoL in patients seeking medical help for BPH. The innovation of this questionnaire is that the patients' scores achieved are related to their subjective satisfaction. MATERIALS AND METHODS: Questionnaire development: On the base of our previous experience with BSP-PC (a disease specific questionnaire assessing HQoL in prostate Cancer patients), of a careful review of other available instruments (SAT-P, SF-36, ICS-QoL, BPH-HqoL) and of three subsequent meetings with experts (10) and patients (20), we defined the ten life aspects mostly impaired by BPH. We created a first 72-item version of the BSP-BPH. Ten patients cross matched for age end education to our study population were asked to fill in the questionnaire. A 31 item questionnaire version, together with EuroQoL, an already generic validated instrument, was administered to 121 patients as well. Further meetings and statistical analysis defined the 18 items of the BSP- BPH. Questionnaire validation: the BSP-BPH was filled in by 435 patients enrolled in a campaign for detection of prostatic diseases held among the male population of Bologna. RESULTS: Questionnaire development: the participants' mean age was 63 years (N = 121); 47.1% had BPH. The 18 items were selected on the basis of the following criteria: a) r > 0.50, p < 0.05 (correlation test re-test); b) p < 0.05 (ANOVA presence vs absence of BPH); c) r > 0.50, p < 0.05 (correlation with EuroQol). Questionnaire validation: the participants' mean age was 63 years (N = 436). 16 patients with a history of neoplasia were excluded from our study. 21 were missing data. 45% of the sample had BPH. Principal component analysis identified 5 components: 1) satisfaction about sexual functionality (Cronbach alpha = 0.94); 2) satisfaction about social functionality (alpha = 0.80); 3) satisfaction about cognitive/emotional functionality (alpha = 0.82); 4) satisfaction about urinary functionality (alpha = 0.87); 5) satisfaction about physical functionality (alpha = 0.66); total Cronbach alpha was 0.88. CONCLUSIONS: The 18 items version of BSP-BPH questionnaire can be used as an instrument for HQoL evaluation in patients with BPH focusing on patients' subjective satisfaction. At the moment only the Italian version is available.

Humans↗
PubMed2005

Collecting health history information: the accuracy of a patient self-administered questionnaire in an orthopedic outpatient setting.

BACKGROUND AND PURPOSE: The utility of patient self-administered health history questionnaires has been extensively studied in physician practice settings, but little such research has been done in populations germane to physical therapist practice. The purpose of this study was to document the accuracy of a self-administered questionnaire for collecting patients' history of illness, surgery, and medication use. SUBJECTS: Outpatient orthopedic surgery candidates (n=100, 54% female, 46% male; mean age=46.9 years) with common orthopedic disorders were recruited. METHODS: Using the same form, patient health history information was recorded separately by patient self-report and by an experienced health care practitioner. Patient questionnaire responses were compared for accuracy with responses generated by the practitioner and those found in the medical record. RESULTS: The mean percentage of agreement across questionnaire items was 96% (range=57%-100%); the mean kappa value was .69 (range=.154-1.0). Of the total questionnaire responses across all patients (n=9,436), 2.55% (n=241) of the responses were noted "yes" on the practitioner questionnaire, but not on the patient questionnaire; 1.8% of the items (n=174) were noted "yes" on the patient questionnaire, but not on the practitioner questionnaire. DISCUSSION AND CONCLUSION: The results support the accuracy of patient self-administered health history questionnaires in reporting important health history information.

Adult↗
PubMed2000

Measuring asthma control. Clinic questionnaire or daily diary?

Daily symptom, peak expiratory flow rate (PEFR), and medication diaries are often used in clinical trials of treatments for asthma on the assumption that they provide a better estimate of clinical status than does a questionnaire completed in the clinic. We conducted a study with the aim of comparing the measurement properties of the clinic-completed Asthma Control Questionnaire with those of the Asthma Control Diary. The diary is composed of questions and response options almost identical to those of the questionnaire, but uses PEFR instead of FEV(1) as the measure of airway caliber. In an observational study, 50 adults with symptomatic asthma attended a McMaster University asthma clinic at 0, 1, 5, and 9 wk to complete the Asthma Control Questionnaire and other measures of asthma status. For 1 wk before each follow-up visit, patients completed the Asthma Control Diary every morning and evening. Concordance between the questionnaire and diary was high (intraclass correlation coefficient [ICC] = 0.87). Both reliability (ICC: questionnaire = 0.90; diary = 0.86) and responsiveness (responsiveness index: questionnaire = 1.06; diary = 0.90; p = 0.005) were better with the questionnaire than with the diary. Correlations between the two instruments and other measures of clinical asthma status were similar and close to a priori predictions. Both the Asthma Control Questionnaire and the Asthma Control Diary are valid instruments for measuring asthma control, but the questionnaire has slightly better discriminative and evaluative measurement properties than does the diary.

Adolescent↗