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At least 613 records · Page 34Linked to original sources
PubMed2004

Development and validation of an acceptability and satisfaction questionnaire for a contraceptive vaginal ring, NuvaRing.

OBJECTIVE: To validate an acceptability questionnaire for NuvaRing, a new combined contraceptive vaginal ring. METHODS: A 21-item questionnaire was developed covering: ease of ring use, ease of package use, clarity of instructions, sexual comfort, cycle-related characteristics, compliance and satisfaction. A total of 2145 women completed the questionnaire after 3, 6 or 13 cycles of NuvaRing use. The psychometric properties and predictive value of the questionnaire were assessed using cycle 3 data (n = 1950). The quality of completed questionnaires, item content analysis, construct validity, internal consistency reliability, known groups validity and predictive validity were evaluated. RESULTS: Excluding non-ordinal items, 0.6% of the data were missing. Principal component analysis of 15 ordinal items indicated that two hypothesised dimensions ('ease of package use' and 'clarity of instructions') were consistently linked and so were combined into a single 'ease of comprehension' scale. Item convergent validity (the degree of correlation between an item and its own scale) was 100% for 'ease of ring use' (r = 0.44) and 'satisfaction' (r = 0.58), 83% for 'ease of comprehension' (r = 0.25-0.62) and 67% (r = 0.38-0.54) for 'sexual comfort', but 0% for 'cycle-related characteristics' (r = 0.31). Item discriminant validity (the degree to which an item correlates with its own scale compared with other scales) was >/=96% for all dimensions. Internal consistency reliability was acceptable for all dimensions (adjusted Cronbach's alpha coefficient >0.70). Satisfaction was higher than in the complementary groups for respondents who had no adverse events, chose NuvaRing as the best method of contraception or completed the study; this indicated good known groups validity. Low satisfaction with the method was a good predictor of early discontinuation after cycle 3, indicating that the questionnaire had good predictive validity. CONCLUSIONS: The acceptability questionnaire has good psychometric properties and can predict early discontinuation of the NuvaRing vaginal ring method of contraception.

Adolescent↗
PubMed2000

A reproductive health survey on unintended pregnancy in Yamagata, Japan: feasibility of the survey and test-retest reliability and validity of a questionnaire.

We have designed a survey to investigate factors related to unintended pregnancy using a newly devised questionnaire. This pilot study was conducted to examine the feasibility of the study and the test-retest reliability and the validity of the questionnaire. Samples were 107 cervical and breast cancer screening participants aged 35-49 year-old in 1999 in Yamagata, Japan. The same questionnaires were mailed twice to examine the test-retest reliability. Women's medical records for cancer screening were used to examine the validity of the questionnaire. Ninety-six women agreed to participate in the study and 89.6% of them responded to the first survey. The agreements between two surveys were substantial to perfect for the nominal and ordinal data, and for the continuous data, the standard deviations (SDs) were less than 1 and the correlation coefficients were over 0.6. The comparison between medical record and questionnaire derived data showed perfect agreements for reproductive items except age at last birth (SD: 0.71, correlation coefficient: 0.97), and fair agreements for drinking and smoking habits. Obtaining information on unintended pregnancy by questionnaire is feasible, and the test-retest reliability and the validity of the questionnaire are satisfactory. Currently we are conducting a survey with a larger sample.

Adult↗
PubMed1998

Reliability and validity of a questionnaire for assessment of energy expenditure and physical activity in epidemiological studies.

A self-administered physical activity questionnaire (PA-questionnaire) was developed to assess daily energy expenditure and weekly physical activity in epidemiological studies. The Calorie Counter method (CC-method) was administered to 49 male and 32 female volunteers aged 18-64 years, on 7 consecutive days; after the measurement, the subjects were asked to complete the PA-questionnaire (validation study). The PA-questionnaire was completed by 95 males and 119 females (aged 35-73 years) twice with one-year interval (reliability study). The validation study showed that the mean daily energy expenditure estimated by the PA-questionnaire was slightly and significantly (4.5%) lower than that determined by the CC-method for males (p < 0.05); while no significant difference was observed for females (p > 0.05), mean weekly physical activities were similar between the PA-questionnaire and CC-method in males and females. Daily energy expenditures by the two methods strongly correlated with each other: r = 0.56 (p < 0.001) in males and r = 0.67 (p < 0.001) in females. Weekly physical activities by the two methods also strongly correlated with each other: r = 0.68 (p < 0.001) in males and r = 0.69 (p < 0.001) in females. The reliability study indicated that the Pearson's correlation coefficients between two assessments of daily energy expenditure and weekly physical activity over one-year ranged from 0.37 to 0.62 (p < 0.001). These data indicate that the PA-questionnaire has adequate levels of validity and test-retest reliability in assessment of daily energy expenditure and weekly physical activity in epidemiological studies.

Adult↗
PubMed2004

The Blood Glucose Monitoring Communication questionnaire: an instrument to measure affect specific to blood glucose monitoring.

OBJECTIVE: The aim of this study was to present the psychometric properties of a new tool for evaluating affective response to blood glucose monitoring (BGM) in youths with type 1 diabetes and their parents. RESEARCH DESIGN AND METHODS: Study participants included 153 youths with type 1 diabetes and their parents. Each youth and parent completed the Blood Glucose Monitoring Communication (BGMC) questionnaire, Diabetes Family Conflict Scale, and Pediatric Quality of Life Inventory. Statistical analyses evaluated the psychometric properties of the BGMC questionnaires and their association with glycemic outcomes. RESULTS: Youth and parent BGMC questionnaires had acceptable internal consistency (youth, alpha = 0.77; parent, alpha = 0.82) and 1-year test-retest reliability (youth, r = 0.60; parent, r = 0.80). Higher BGMC questionnaire scores (indicating more negative affect) showed a strong association with higher levels of diabetes-specific family conflict (youth, r = 0.33; parent, r = 0.44) and poorer health-related psychosocial quality of life (youth, r = -0.50; parent, r = -0.42). Higher BGMC questionnaire scores were also associated with poorer glycemic control (youth, r = 0.28; parent, r = 0.20), even when the effects of diabetes-specific family conflict and psychosocial quality of life were controlled. Youths with BGMC questionnaire scores in the upper quartile had A1c values 1 percentage point higher (9.1%) than youths with scores in the lowest quartile (8.0%). CONCLUSIONS: The BGMC questionnaires have strong psychometric properties and are convenient measures of affect specific to BGM. Further, BGM affect is associated with glycemic outcomes and may provide a unique contribution to factors associated with glycemic control in youths.

Adolescent↗
PubMed1988

Assessing disability in patients with rheumatoid arthritis. Use of a Swedish version of the Stanford Health Assessment Questionnaire.

The validity and reliability under Swedish conditions of a translated and slightly modified version of the Stanford Health Assessment Questionnaire (HAQ), referred to here as the ADL questionnaire, was studied. Sixty-four patients with definite/classical rheumatoid arthritis (RA) participated in the major part of the investigation. In addition, inter-observer reliability was studied in the testing of 15 other patients with RA. The questionnaire was filled in by the patients twice (ADL Tests 1 and 2) with a one-week interval between. A physiotherapist or occupational therapist also assessed each of the patients on a sample of ADL functions (ADL Test 3). Joint mobility, grip-strength, pain, Ritchie index and ESR were likewise checked. Results indicated inter-observer reliability to be high for the ADL (r(S) = 0.98), for joint mobility (r(S) = 0.86), and for the Ritchie index (r(S) = 0.83). The test-retest reliability for the ADL questionnaire which the patients filled in (Tests 1 and 2) was high r(S) = 0.91. Results of the ADL questionnaires the patients completed were found to correlate fairly closely with the observations of the therapists, r(S) = 0.71. The validity of the scoring system was found to be sufficient, using Ward's cluster analysis for comparing the original HAQ scores with scores on all the questions included in the questionnaire. Thus, the translated and somewhat modified version of the ADL questionnaire studied here appears to possess a high degree of reliability and validity in assessing patients with RA.

Activities of Daily Living↗
PubMedDate not supplied

A comparison of questionnaire and physiological data in predicting future chronic disease risk factor status in an employee population.

BACKGROUND: The ideal screening tool for worksite health screening programs has not yet been identified, and the effectiveness of screening programs in predicting future chronic disease risk factors status is not well understood. This study compared two commonly used screening tools, health-related questionnaires and measurement of physiological parameters, in terms of their ability to predict future chronic disease risk factor status in an employee population. METHODS: Data were collected over a 10-year period from Liberty Corporation employees (N = 723). Baseline evaluation included the administration of questionnaires and measurement of physiological data. Follow-up evaluation measured physiological data only. Regression analyses identified the statistically significant predictors of future risk factor status using 1) baseline questionnaire data; 2) baseline physiological data; and 3) both questionnaire and physiological data as predictor variables. RESULTS: Although both screening methods were able to predict future risk factor status, R 2 values were higher in models including baseline physiological measures than models including questionnaire data only. Adding questionnaire data to physiological data provided little or no additional predictive ability. DISCUSSION: These results suggest that physiological data, particularly baseline measures of a risk factor, are more predictive of future risk factor status than questionnaire data.

Adult↗
PubMed2005

Reliability of the Spanish version of a brief questionnaire on patient satisfaction with gastrointestinal endoscopy.

BACKGROUND: There has not been a validated questionnaire available in Spanish to evaluate patient satisfaction with gastrointestinal endoscopy. Our aim was to evaluate the external validity and internal consistency of the Spanish version of a questionnaire on patient satisfaction with gastrointestinal endoscopy elaborated by the American Society for Gastrointestinal Endoscopy. DESIGN: Prospective questionnaire validation study. PATIENTS AND METHODS: A total of 485 consecutive patients referred to two different hospitals for endoscopy were interviewed by telephone. Internal consistency was studied using Cronbach's alfa test and corrected item-total correlations (CITC). External validity was determined using a mailed questionnaire completed by 185 patients-correlations between telephone and postal responses were calculated, as well as the correlation with the total score obtained. RESULTS: Cronbach's alfa was 0.82 and mean CITC was 0.59. Weighted kappa values for the same questionnaire items performed by telephone or mail varied between 0.51 and 0.81. Total score correlation was 0.78. Internal consistency and external validity were not affected by differences in the administration of the questionnaire (mail or by telephone), different interviewers, type of endoscopy, or source of patients. CONCLUSIONS: The Spanish version of the ASGE questionnaire on satisfaction with endoscopy is valid, reliable, and reproducible.

Endoscopy, Gastrointestinal↗
PubMed1989

A patient questionnaire to identify bowel disease.

Although functional gastrointestinal symptoms are seen frequently by internists and are the commonest reason for patients to be referred to gastroenterologists, no validated self-report questionnaire is available for their diagnosis. To differentiate among non-ulcer dyspepsia, the irritable bowel syndrome, organic gastrointestinal disease, and health, we developed a self-report questionnaire. Our bowel disease questionnaire, which evaluated 46 symptom-related items was completed prospectively by 361 subjects before their clinical evaluation as outpatients. Of these subjects, 115 were categorized ultimately as having functional bowel disease (non-ulcer dyspepsia or the irritable bowel syndrome), 101 were categorized ultimately as having organic gastrointestinal disease, and 145 were healthy persons having routine periodic examinations for whom no additional diagnoses were made. All diagnoses were based on independent clinical evaluations, not on the patients' responses to the questionnaire. The bowel disease questionnaire was acceptable and easily completed; it elicited symptoms in a highly reliable manner and was shown to be a valid measure of functional bowel complaints. Our questionnaire discriminated non-ulcer dyspepsia from irritable bowel syndrome with a sensitivity of 75% and a specificity of 72%, and it discriminated functional bowel disease from organic disease and health with sensitivities of 85% and 83%, and specificities of 60% and 76%, respectively. We believe that this questionnaire is an additional and useful diagnostic tool for identifying patients with functional gastrointestinal symptoms.

Adolescent↗
PubMedDate not supplied

[Use of a questionnaire for screening people with undiagnosed diabetes].

OBJECTIVE: To evaluate a screening questionnaire to identify individuals with undiagnosed diabetes. DESIGN AND METHODS: We conducted a community survey to detect people at increased risk for diabetes using a questionnaire proposed by Herman et al. (1995), that incorporates major risk factors as age, obesity, family history of diabetes, sedentary lifestyle and personal history of delivering a macrosomic infant. Blood glucose test was made by means of reagent strip and a reflectance meter system. We used the ADA recommendations and cut-points for screening programs, adjusted for fasting and random blood glucose. RESULTS: We included 360 participants older than 20 years of age. A total of 200 subjects (55.5%) were at risk for diabetes according to the questionnaire, of whom 31 (15.5%) had an abnormal glucose test compared to the 4.4% of the low-risk group (p < 0.001). The 1995 Herman et al. Questionnaire had sensitivity of 81.6%, specificity of 47.5, positive predictive value of 15.5 and negative predictive value of 95.6%. The high-risk group was older (44.9 vs. 34.6 y, p < 0.001) and heavier (30.5 vs. 24.4 kg/m2, p < 0.001) than the low-risk group. There were 38/360 (10.5%) abnormal glucose readings, of which 31 (81.5%) had a positive questionnaire (p < 0.01). The mean fasting glucose in the high-risk group was higher (90.6 vs. 84.2 mg/dL, p = 0.015) than in those with low risk by questionnaire, as well as for random blood glucose (116.1 vs. 100 mg/dL, p < 0.01). CONCLUSIONS: The questionnaire proposed by Herman et al. combined with capillary blood glucose testing performance good in mexican population to identify people at high risk for undiagnosed diabetes, and improved the detection rate.

Adult↗
PubMed1999

Perceived ability to manage juvenile chronic arthritis among adolescents and parents: development of a questionnaire to assess medical issues, exercise, pain, and social support.

OBJECTIVE: To develop a questionnaire to assess perceived ability to manage juvenile chronic arthritis (JCA) among adolescents and parents. METHODS: The questionnaire contained 24 (parents' version) and 23 (adolescents' version) questions accompanied by visual analog scales in the areas of knowledge, skill, behavior, attitudes, and self-efficacy. One hundred seven persons participated in the examination of validity and 25 in the examination of test-retest reliability. RESULTS: Factor analyses indicated that the questionnaire, now termed the MEPS (abbreviation for "medical issues, exercise, pain, and social support") questionnaire, contained 4 underlying dimensions: medical issues, exercise, pain, and social support, including 9, 4, 7, and 4 questions, respectively. The content of the questionnaire was judged mainly to be easily understood, relevant, and exhaustive. Intraclass correlation coefficients for the test-retest reliability of the questionnaire answers over a week ranged from 0.68 to 0.96 for single questions. CONCLUSION: The MEPS questionnaire appears to be a valid and reliable tool for assessing the perceived ability to manage JCA. Whether it is sufficiently responsive to interventions remains to be investigated.

Adaptation, Psychological↗
PubMedDate not supplied

[Validity and reproducibility of a questionnaire on physical activity and non-activity for school children in Mexico City].

OBJECTIVE: To assess the validity and reproducibility of a self-reported questionnaire on physical activity and inactivity, developed for children aged 10-14 in Mexico City. MATERIAL AND METHODS: Between May and December 1996, a self-reported physical activity and inactivity questionnaire was developed and applied twice to a sample of 114 students aged 10 to 14, from a low and middle income population of Mexico City. The children's mothers completed the same questionnaire, and two 24-hour recalls of physical activity were used for comparison. Statistical analysis consisted of central tendency and dispersion measures and Pearson's correlation coefficient. RESULTS: Correlations between hours per day spent in physical activity and inactivity from the children's questionnaire and the 24-hour recall data, were 0.03 for moderate activity, 0.15 for vigorous activity, and 0.51 (p = 0.001) for watching television, adjusted by age, gender, town, and illness prior to the administration of the questionnaire. Compared to the 24-hour recall data, the questionnaire overestimated the time spent watching television, reading or participating in vigorous activity, and underestimated the time engaged in moderate activity. Statistically significant (p < 0.05) six-month reproducibility values were observed for watching television (r = 0.53), sleeping (r = 0.40), moderate (r = 0.38), and vigorous activity (r = 0.55). CONCLUSIONS: Among children of Mexico City aged 10-14, the questionnaire showed acceptable validity in estimating the time watching television, and acceptable reproducibility of the time watching television, vigorous and moderate activity.

Adolescent↗
PubMed2002

A new questionnaire for the diagnosis of dyspepsia.

A questionnaire to diagnose dyspepsia was created. The questionnaire consists in 9 items written in very clear and understandable language and related to the cardinal symptoms of dyspepsia (easy sensation of fullness, postprandial epigastric fullness, heartburn, regurgitation, nausea, vomiting, postprandial epigastric pain, excessive belching and hunger pain). The questionnaire also includes a system of quantification levels for each symptom, taking into account its frequency and intensity of presentation in the previous two weeks: 1 point, if the symptom did not bother at all or only infrequently; 2 points, if it bothered only a little; 3 points, if it bothered moderately; and 4 points, if it bothered a lot. The questionnaire was applied to 40 patients with dyspepsia and 20 healthy control subjects, and their answers were compared with data obtained by anamnesis. For the comparison, three criteria were considered to define, with the questionnaire, the existence of dyspepsia: A) Presence of a minimum of 2 symptoms, and at least one of them with a quantification level of 2 points or more; B) Presence of a minimum of 2 symptoms, and at least one of them with a quantification level of 3 points or more; and C) Presence of a minimum of 2 symptoms with a quantification level of 3 points or more. Of these three criteria, criterion B was found to be the best, and following it, the sensitivity and specificity of the questionnaire were, respectively, 95% and 100%. The new questionnaire will be, for sure, a useful instrument to accurately investigate dyspepsia, specially in large population groups.

Adolescent↗
PubMed2002

Reproducibility and validity of a short food questionnaire for the assessment of dietary habits.

BACKGROUND AND AIM: Dietary changes such as reducing the consumption of foods high in saturated fat, and increasing the daily intake of unsaturated fat, fibre and vitamins may have beneficial effects on long-term health. Accurate dietary information is essential for dietary counselling. Most of the methods used to examine an individual's diet (food records, diet interview, food frequency questionnaires) are too complicated and time-consuming for routine clinical use. There is a need for a fast and simple tool for food assessment. The aim of this study was to evaluate a short and simple food questionnaire for use in clinical practice that emphasises the intakes of fat, fibre, fruit and vegetables representative of the usual diet of an individual or group. METHODS AND RESULTS: A 15-item questionnaire was completed twice on the same day by 111 participants in order to study reproducibility, and its validity was checked by comparing the results with those of a 7-day food record for 101 subjects. The participants reported a positive attitude to the questionnaire. The reproducibility and validity studies comparing the sum scores of the questionnaire and food record gave correlation coefficients of respectively 0.95 and 0.73, thus indicating good agreement. The reproducibility study showed weighted Kappa coefficients ranging from 0.97 for milk and snacks to 0.75 for vegetables. In the validity assessment, the weighted Kappa coefficients ranged from 0.73 for butter and margarine to 0.14-0.25 for vegetables, fish and snacks, which is a less satisfactory result. The correlation coefficient between the sum score of the questionnaire and the percentage of dietary saturated fat was-0.59. CONCLUSIONS: This simple self-administered questionnaire allows for the rapid assessment of the constituents of the usual diet of an individual. It provides a good estimate of dietary fat and fibre but is less accurate in terms of the intake of vegetables, fish and snacks. It also offers an opportunity to discuss central points in the improvement of dietary habits and may be a useful health educational tool in clinical practice.

Adult↗
PubMed2003

[Creating a specific diagnostic and quality-of-life questionnaire for patients with ocular surface disease].

INTRODUCTION: Ocular surface diseases (OSD) affect about 15% of the population over 65 years of age. Nevertheless, OSD knowledge in the scientific community remains poor, and the healthcare system does not adequately recognize this disorder. However, many patients with OSD suffering from chronic pain experience substantial alteration in their quality of life (QoL). PURPOSE: Our work aimed at developing a patient self-evaluation questionnaire specific to OSD. This questionnaire could thus become a useful diagnostic tool that ophthalmologists could employ in daily practice in order to better understand patients'complaints and thereby correctly treat their disease. It also may serve as an evaluation tool in medical research. This article describes the phases of item generation, validation by experts, and identification of dimensions in the QoL section. METHODS: The questionnaire was developed in French by a group of experts including clinicians and methodologists. It comprised two parts: one on diagnostic aid, and the other on subjective perception of the disease (symptoms, perception of treatment, quality of life). The questionnaire was tested on five patients. It was then modified according to the patients' suggestions and tested again on 20 patients. After a second review by the scientific committee, a pilot questionnaire suitable for systematic use in quantitative studies was prepared. A cross-sectional observational study then identified the statistical dimensions of the QoL section, which led to a reduction in the total number of items. RESULTS: The resulting operational version of the questionnaire included four sections CONCLUSION: The next study will test the reproducibility of the operational version of the OSD questionnaire obtained after the item reduction phase.

Adult↗
PubMed2001

Validation of Web-based questionnaires regarding osteoporosis prevention in young British women.

OBJECTIVES: The aim was to assess the content, validity and reproducibility of web-based questionnaires, for a study on osteoporosis prevention among young British women. Twenty-two questionnaires to assess knowledge, self-efficacy, physical activity, calcium intake, health beliefs and stages of change relevant to osteoporosis prevention were identified. Nine were selected and modified to compensate for cultural differences, to suit young women, for completion on the Web. DESIGN: Subjects were recruited by e-mail and asked to complete the web-based questionnaires. Subjects completed the questionnaires again, on paper and were asked to assess the content validity, at least seven days later. SETTING: University of Glasgow, Scotland. SUBJECTS: Sixteen female students and staff aged 19-49. RESULTS: The questionnaires' reproducibility, as measured by the intraclass correlation coefficient was significant at p < 0.01 and acceptable, i.e. above 0.70 for knowledge, 0.85; for self-efficacy, 0.72; for exercise stage of change, 0.79; for exercise benefits, 0.89 and for exercise barriers, 0.82. The intraclass correlation coefficient was significant at p < 0.01 for health belief, 0.43, for weight-bearing physical activity, 0.67, for calcium barriers, 0.48, for 'others around you', 0.65, for calcium stage of change, 0.50 and for calcium intake, 0.56. The intraclass correlation coefficient was not significant for calcium benefits. CONCLUSIONS: Assessing content validity was valuable in ensuring questionnaires were relevant and interpreted correctly by the sample population. Nine web-based questionnaires suitable for, and validated with, young British women are now available for use as outcome measures in studies of health education to prevent osteoporosis.

Adult↗
PubMed2003

[Reliability and validity of a 7-day physical activity questionnaire for elementary students].

OBJECTIVE: To evaluate the use of a 7-day physical activity questionnaire in epidemiologic studies on 4-6th grades children. METHODS: Focus group discussion, observation and expert consultation were used to develop 7-day physical activity questionnaire. The reliability and validity of questionnaire were determined in a sample of 92 children in 4-6th grades who were randomly selected from four schools in urban Beijing. A two-week test-retest reliability was determined. The questionnaire was validated against experts' evaluation and Caltrac motion sensor. RESULTS: For different measures of activity, the agreement was good between the test and retest. Kappa values ranged from 0.46 to 0.79, and the Spearman correlations ranged from 0.66 to 0.87 in boys and 0.57 to 0.82 in girls, with significant difference (P < 0.01). The face validity and content validity were good by experts' evaluation. There was no significant difference between questionnaire results and Caltrac motion sensor for both boys and girls, and the questionnaire correlated significantly (r = 0.46, 0.38 for different measures of activity) with Caltrac motion sensor for boys. CONCLUSION: These data provided evidence that the 7-day physical activity questionnaire yield a reliable estimate of past week physical activity for 4 - 6-grade children and provided valid estimation of past week physical activity for boys.

Child↗
PubMedDate not supplied

Evaluation of a tuberculosis screening questionnaire for use in an Alaskan homeless population.

OBJECTIVE: To test the efficacy of a questionnaire for tuberculosis screening in an Alaskan homeless population. METHODS: Simultaneous PPD skin testing and questionnaire administration was performed at a free-meal facility to test the efficacy of a questionnaire for tuberculosis screening. "Positive" questionnaires were based on responses to symptom-based and risk-based questions. RESULTS: Demographic data was similar to pre-existing data for the Anchorage homeless population. Of the 64 participants, 3 were excluded and 47 (77%) returned for skin test readings. There were 8 (17%) positive, and 39 (83%) negative PPD tests, 17 (36%) positive and 30 (64%) negative symptom-based questionnaires (Sensitivity 25%, specificity 51%. PPV 13%, NPV 80%) and 28 (60%) positive, and 19 (40%) negative (n = 61) risk-based questionnaires (Sensitivity 63%, specificity 41%, PPV 18%, NVP 84%). CONCLUSION: The prevalence of TB warrants screening and treatment of the Anchorage, Alaska homeless population. However, this questionnaire was not useful for this population and therefore screening should be done using PPD skin tests.

Alaska↗
PubMed2004

Fatigue assessments in rheumatoid arthritis: comparative performance of visual analog scales and longer fatigue questionnaires in 7760 patients.

OBJECTIVE: Fatigue has been recognized as an important domain in rheumatoid arthritis (RA) clinical trials and in patient care and outcome. However, lengthy fatigue questionnaires cannot be easily used in clinical care, and there are no data for the comparative performance of various short and long questionnaires. We compared a single-item visual analog scale (VAS) with 3 longer fatigue questionnaires, investigating 4 fatigues scales: the Multi-dimensional Assessment of Fatigue (MAF), the vitality scale from the Medical Outcomes Study Short Form 36 (SF-36), the Brief Fatigue Inventory (BFI), and the VAS. METHODS: Participants in a longitudinal outcome study of RA (N = 7760) completed the 4 questionnaires, and a subset of 5155 completed the same fatigue scales 6 months later. RESULTS: All questionnaires were highly correlated and were correlated at similar levels with clinical variables. The 3 longer questionnaires had slightly greater reliability in cross-sectional analyses, but the VAS was as good as or better than the longer questionnaires when sensitivity to change was considered. CONCLUSION: The single item VAS performs as well as or better than longer scales in respect to sensitivity to change, and is at least as well correlated with clinical variables as longer scales. The VAS fatigue scale is suitable for routine use in clinical care, an advantage that is lacking for the other scales. These results do not indicate advantages for longer fatigue scales compared with the VAS.

Activities of Daily Living↗