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At least 127 records · Page 7Linked to original sources
PubMed2000

Inadequacies of self-report data for exclusion criteria detection in marihuana research: an empirical case for multi-method direct examination screening.

Stringent exclusion criteria in drug abuse research are necessary to protect against methodological confounds compromising the interpretation of findings. However, reliance on self-report screening may fail to detect important exclusion variables. We compared three levels of exclusion criteria screening in a study of neurophysiological/neurocognitive sequelae of chronic marihuana use in normals. LEVEL 1 (self-report) consisted of telephone pre-screening. LEVEL 2 (also self-report) involved in-depth personal interviews. LEVEL 3 consisted of several direct examination assessments including a medical/psychiatric examination by a board certified psychiatrist, eight weeks of twice per week urine drug screens, an EEG exam and eight hours of neuropsychological testing. Results indicated that 39.0% of subjects passing self-report screening had significant exclusion criteria findings that were only detected through LEVEL 3 direct examination procedures. Of all subjects found to have exclusion criteria after being provisionally accepted following LEVEL 1 telephone pre-screening, 55.7% were detected only through more rigorous LEVEL 3 direct examination screening methods.

Adolescent↗
PubMedDate not supplied

Self-measurement of blood glucose. Accuracy of self-reported data and adherence to recommended regimen.

Reflectance meters containing memory chips were used in a study that addressed several questions concerning routine use of self-monitoring of blood glucose (SMBG), including accuracy of patient blood glucose (BG) diaries, reliability of self-reported frequency of SMBG, and adherence to recommended SMBG regimen. Thirty adults with insulin-dependent diabetes used memory meters and recorded test results in diaries for 2 wk while performing their normal SMBG regimen. Analysis of glucose diaries showed that only 23% of the subjects had no diary errors and 47% had clinically accurate diaries (less than 10% error rate). The most common types of errors were omissions of values contained in meter memory and additions of values not contained in meter memory, with significantly more omissions than additions. Alterations of test values (e.g., changing a 300-mg/dl reading to 200 mg/dl) were extremely rare. There was no difference in the rate of errors that resulted in a more positive clinical profile (omitting unacceptable values and adding acceptable values) or a more negative clinical profile (omitting acceptable values and adding unacceptable values). Examination of the actual frequency of SMBG showed that most subjects (56.6%) measured their BG an average of two to three times each day. Self-report of SMBG frequency correlated with both actual frequency and HbA1. Although actual frequency of SMBG was not related to physicians' recommendations, the majority (64%) of subjects were self-testing as often or more often than they had been instructed.

Adult↗
PubMed2004

[A structured report data set for documentation of echocardiographic studies--Update 2004].

A standardized documentation of echocardiographic studies is necessary to provide comparability of data and to realize software-based documentation and electronic communication, both essential for quality management in echocardiography.Therefore, the subgroup on "Standardization and LV function" of the working group on cardiovascular ultrasound of the German Cardiac Society developed a consensus report for documentation of echocardiographic studies, which was first published in 2000. This report represents the current update of the standardized documentation for echocardiography; its impact for quality management in conjunction with the "guidelines echocardiography" is discussed.

Data Collection↗
PubMed1979

The validity and reliability of self-reported data from heroin addicts: mailed questionnaires compared with face-to-face interviews.

Immediately following receipt of their 1-year follow-up mailed questionnaire, 55 former patients from an addiction treatment program were interviewed personally, and a urine sample was collected. Results indicate a high degree of correspondence of self-reported drug use with the urinalysis reports, and moderately high correspondence between the information on employment, school attendance, legal status,and length of heroin run given in the mailed questionnaire with that provided in the personal interview.

Heroin Dependence↗
PubMed2003

Accuracy of self-reported data for estimating crash severity.

Estimated traveling speed and speed limit have typically been used in population-based surveillance data to estimate crash severity. The accuracy of these measures in predicting crash severity is unknown. The Partners for Child Passenger Safety (PCPS) surveillance system offers a unique opportunity to compare these measures, as well as a novel measure of crash severity, "self-report" delta-V, to the accepted measure of delta-V estimated during detailed crash-investigations in 118 crashes. This "self-report" delta-V was computed from the estimated traveling speeds and direction of impact obtained from telephone interviews with drivers. These "self-reported" delta-V estimates are modestly associated with crash-investigation delta-V estimates, with the degree of association a function of the direction of impact: when the respondent was struck from the rear, the degree of association is strong; frontal, side, and single-vehicle crashes yield weaker associations. This "self-reported" delta-V measure, however, is a substantial improvement over use of estimated traveling speed or speed limit only.

Accidents, Traffic↗
PubMed2006

Thyroid cancer in Luxembourg: a national population-based data report (1983-1999).

BACKGROUND: Twenty years after the nuclear accident in Chernobyl (Eastern Europe), there is still a controversial debate concerning a possible effect of the radioactive iodines, especially I-131, on the increase of thyroid carcinomas (TCs) in Western Europe. Time trends in incidence rates of TC in Luxembourg in comparison with other European countries and its descriptive epidemiology were investigated. METHODS: The population-based data of the national Morphologic Tumour Registry collecting new thyroid cancers diagnosed between 1983 and 1999 at a nation-wide level in the central division of pathology were reviewed and focused on incidence rates of TC. Data from 1990 to 1999 were used to evaluate the distribution by gender, age, histological type, tumour size and the outcome. RESULTS: Out of 310 new thyroid carcinomas diagnosed between 1990 and 1999, 304 differentiated carcinomas (A: 80% papillary; B: 14.5% follicular; C: 3.5% medullary) and 6 anaplastic/undifferentiated TCs (D: 2%) were evaluated. The M/F-ratio was 1:3.2, the mean age 48.3 years (range: 13-92). The overall age-standardized (world population) incidence rates over the two 5-year periods 1990-1994 and 1995-1999 increased from 7.4 per 100,000 to 10.1 per 100,000 in females, from 2.3 per 100,000 to 3.6 per 100,000 in males. Only 3 patients were children or adolescents (1%), the majority of the patients (50%) were between 45 and 69 years of age. The percentage of microcarcinomas (<1 cm) was A: 46.4%, (115/248); B: 13.3%, (6/45); C: 27.3%, (3/11). The unexpected increase of TCs in 1997 was mainly due to the rise in the number of microcarcinomas. The observed 5-year survival rates for both genders were A: 96.0+/-2%; B: 88.9%; C: 90.9%; D: 0%. Prognosis was good in younger patients, worse in males and elderly, and extremely poor for undifferentiated TCs. CONCLUSION: The increasing incidence rates of TC, especially of the papillary type, seem mainly due to a rise in diagnosed microcarcinomas due to some extent to a change in histologic criteria and to more efficient diagnostic tools. This rise appears to be independent of the number of surgical treatments, the immigration rate, and the Chernobyl fallout as the incidence of TC in children remained stable.

Adolescent↗
PubMed1995

Application issues in bioanalytical method validation, sample analysis and data reporting.

Although some degree of consensus has been reached concerning the requirements for acceptable method validation, the procedures used to establish them vary significantly between laboratories. Also, issues arising from application of these requirements during validation and subsequent sample analysis need to be addressed. The purpose of this paper is to discuss application issues concerning prerequisites to method validation, and all validation criteria for evaluation of method reliability and overall performance. Other poorly addressed issues such as re-validation, cross-validation, partial sample volume, multicomponent analysis and reporting will also be discussed. Although many issues discussed are of a general nature, the scope of this presentation is primarily to address issues arising from the validation and routine application of chromatographic methods.

Animals↗
PubMed2004

Reliability of self-reports: data from the Canadian Multi-Centre Osteoporosis Study (CaMos).

Reliable questions enhance study design. We assessed the reliability of questions that gather demographic, sun exposure, reproductive history, and physical activity information. Subjects were participants in the Canadian Multicentre Osteoporosis Study (CaMos), a cohort study of Canadian adults recruited January 1996 to September 1997 in nine cities, stratified by sex, age, and location. Following personal interviews, 367 subjects were re-administered part of the questionnaire by telephone. Reliability was assessed using kappa and intra-class correlation. Reliability was excellent for employment status, reproductive history, weight and height (0.91 to 0.97), not differing greatly when stratified by age group or sex. Physical activity and sun exposure were reported with fair to good reliability (0.44 to 0.58), except for moderate activity (kappa = 0.30, 95% confidence interval 0.23, 0.37). Stratification by body mass index did not show significant differences. Many items can be reported reliably, especially those of height, weight, employment status and reproductive history, and, to a lesser extent, physical activity and sun exposure. Similar questions might be used reliably in future studies.

Aged↗
PubMed2006

Using patient self-report data to evaluate orofacial surgical outcomes.

OBJECTIVES: This study analyzes results of 336 patients treated for mandible fractures at King/Drew Medical Center in South Central Los Angeles, California from August 1996 to December 2001. Subjects were enrolled in a prospective study to evaluate the association between patient's subjective evaluation and objective clinical evaluations on three surgical outcome measures following orofacial surgery. METHODS: Subjects were assessed at four time periods--hospital discharge, 10 days post-discharge, 1 month post-discharge and 6 months post-discharge. Three outcome measures were utilized to represent perceived health and oral health-related quality of life--General Oral Health Assessment Index (GOHAI); Mental Health Inventory (MHI-5); and a single-item self-reported health status measure. RESULTS: GOHAI scores at 1 month (mean=31.5, SD=9.5) were not substantially higher than at 10 days (mean=28.6, SD=8.8), but scores did improve substantially by 6 months (mean=42.6, SD=10.6). Mean mental health scores ranged from 17.7 at 10 days to 18.0 at 1 month and 18.6 at 6 months. Mean self-reported health status score were approximately 2.2 at all recalls, describing health as 'good.' A longitudinal growth curve analysis of GOHAI scores over four time periods indicated a significantly higher average intercept for the maxillomandibular fixation (MMF) treatment group (29.67) than in the rigid internal fixation (RIF) treatment group (25.38). Meanwhile, the increase in GOHAI scores over time was significantly greater in the RIF group than in the MMF group, resulting in scores being comparable between groups after 6 months. CONCLUSIONS: By implication, patients with MMF self-report fewer problems in the early days after placement of the intra-arch wire compared with patients with RIF.

Adolescent↗
PubMed1999

Lifestyle factors and continence status: comparison of self-report data from a postal survey in England.

OBJECTIVE: To compare health and lifestyle factors of people with and without urinary incontinence (UI). DESIGN: A postal survey was undertaken that represents the first of a 3-stage project designed to evaluate the health interventions of primary health care teams and continence advisory services on patient outcomes related to UI. SETTING AND SUBJECTS: Two random samples of adult populations (N = 12,529) were included, generated from the family physician patient registers within 2 health authorities in England. INSTRUMENTS: Data were collected using a structured questionnaire that queried demography, perceived health status, activities of daily living, self-care, and use of local health and social services. Information was also collected on past and present continence status. METHODS: Structured questionnaires and a cover letter were mailed to the target population. Two reminders were sent to nonresponders to maximize the response rate. MAIN OUTCOME MEASURES: The main measures relate to factors associated with UI: mobility, sleep, childbirth, smoking, diet, body mass index, and accommodation. RESULTS: Significantly more women than men had UI (P < .0001). Respondents with UI were older than those who were continent (P < .0001). Women with UI were significantly more likely to have a greater number of pregnancies (P < .0001), were more likely to have given birth to a baby weighing more than 9 lb (P < .01), and to have had more than 4 children (P = .01) compared with women who were continent. People with UI were less likely to be single and more likely to be widowed than those who were continent (P < .0001). People who lived alone and who had UI were also significantly less likely to have a relative or friend that they could depend on for help than those who were continent (P < .001). UI was also found to be significantly associated with impaired mobility (P < .0001) and sleeping difficulties (P < .0001). No meaningful differences were found between diet and UI, although significantly more people with UI had higher mean body mass index, were obese, or reported that they felt too heavy for their height when compared with people who were continent (P < .0001). No association was found in the present study with smoking or ethnicity and UI. CONCLUSIONS: Key health and lifestyle factors associated with UI included age, gender, childbirth, mobility, sleep patterns, obesity, living alone, and access to help. These factors should be assessed when planning and implementing health care for persons with UI. Attention to these associated factors may prove useful in identifying new cases or people at risk of developing UI when screening people as part of routine health checks. This, in turn, could assist with targeting effective and efficient health care but may also contribute to prevention for some people.

Activities of Daily Living↗