Validity Of SF-36 Research Articles

Health-related quality of life in Chinese people: A population-based survey of five cities in China

The current study aimed at undertaking an investigation to describe health-related quality of life (HRQL) in Chinese people, with a Mandarin version of the 36-item short-form health survey (SF-36) validated. A total of 3,219 respondents were successfully interviewed under a randomized stratified multi-stage sampling design from April 2007 to January 2008 in five cities of mainland China. Self-finished interview method was applied and the Mandarin version of SF-36 was used for assessing HRQL. As a result, the reliability and validity of SF-36 were acceptable, although some deviations from the hypothesized model still existed. The Chinese population scored higher than other populations in five of the eight SF-36 scales and Chinese men scored higher than women in six of the eight SF-36 scales. Basically, the Mandarin version of SF-36 is a reliable instrument, although minor modifications are needed. The health-related quality of life in Chinese people were quite high based on the sample of five cities in China; further research is needed to establish the countrywide norm of health-related quality of life in mainland China.

Evaluation of Reliability and validity of SF-36 in patients with Graves disease

Objective To evaluate the reliability and validity of SF-36 (36-item Short Form Health Survey) in patients with Graves disease. Methods 113 patients with Graves disease were assessed using SF-36,20patients were reassessed randomly after 2 weeks, and the data was used to analyze reliability and validity. Results The cronbach' s α coefficient of internal consistency was 0.775. Cronbach' s α coefficient of 8 domains ranged from 0.571 to 0.868; the Spearman-Brown coefficient which assessed split-half reliability was 0.946; two weeks later 20 patients were choosen at random to be assessed again, the Pearson correlation coefficient of testretest reliability for the overall questionnair were 0.87. Construct validity were examined, and factor analysis showed two common factors which accounted for 59.71% of total variance were extracted. In criterion validity,the correlation coefficient of self-rated health and the total scores in the scale table was 0.726. Conclusion SF-36 has good reliability and validity and is useful for measurement and assessment of patients with Graves disease. Key words: SF-36; Graves disease; Quality of life; Reliability; Validity

Utility and Validity of the Self-administered SF-36: Findings From an Older Population

Introduction: The objectives of this study were to assess the utility and validity of the self-administered SF-36 and the effect of visual or cognitive impairment on these measures in an older population. Materials and Methods: Attempt rates, completion rates and internal consistency (Cronbach α) were compared within the second cross-sectional, population-based Blue Mountains Eye Study (n = 3509, mean age 66.7 years, 57% women). Results: The SF-36 was attempted by 3162 (90.1%) participants, of which 2470 (78.1%) completed all items and 2873 (90.9%) completed sufficient items for calculation of all dimensions. In a multivariate model adjusting for age, sex, and presenting visual and cognitive impairments, women (P = 0.011) and participants with visual or cognitive impairments (P<0.0001) were less likely to attempt the questionnaire. Completion rates were significantly lower with increasing age (P <0.0001), in men (P ≤0.0005) and in those with cognitive impairment (P <0.0001). A high level of internal consistency (Cronbach α >0.85 for all dimensions) and construct validity was demonstrated, the latter distinguishing between those with and without medical conditions, disabilities or recent hospital admissions (P <0.01). As the prevalence of visual or cognitive impairment was relatively low in this population, we found no apparent effect of these impairments on the validity of SF-36. Conclusions: Attempt and completion rates, but not internal consistency and construct validity, of the SF-36 were influenced by age, gender, and presenting visual and cognitive impairments. The overall high attempt and completion rates, internal consistency and construct validity suggest that the self-administered SF-36 is a suitable health-related quality of life (HRQOL) measure in similar older community-living populations. Key words: Blood amino acid, Normal ranges, Reference values, Urine amino acids

Evaluation of reliability and validity of SF-36 Health Survey in old people in community

Objectives To evaluate the reliability and validity of SF-36 in old people in community. Methods 378 old people in community were investigated by SF-36 by face-to-face interview, and the score of items was analyzed.Reliability and validity of SF-36 were evaluated by item-internal consistency,item discriminant vadility,Cronbach's alpha coefficient, et al. Results The clustering and ordering of the item means of SF-36 were the same as that hypothesized, except for items PF2,PF10,RP3,GH4. The correlation between an item and its hypothesized scale was 0.4 or above for all items. The Cronbach's alpha coefficient were above the standard of 0.7 for all except SF scale. Conclusions SF-36 Health Survey Questionnaire is available for the elderly people. The present evaluation proposes some minor word and item changes which is more suitable for old people.