Description
The complete questionnaire which is necessary to fill in this item can be found at http://wiki-lifelines.web.rug.nl/doku.php?id=quality_of_life_rand Background: The RAND-36 is comprised of 36 items selected from a larger pool of items used in the RAND Medical Outcomes Study (MOS). Twenty of the items are administered using a past 4 weeks reporting interval. RAND-36 assesses eight health concepts with multi item scales (35 items): 10x physical functioning (RAND 03A-J, very limited/little limited/not limited) 4x role limitations caused by physical health problems (RAND4A-D, yes/no) 3x role limitations caused by emotional problems (RAND5A-C, yes/no) 2x social functioning (RAND6/10, 5-point Likert scale) 2x pain (RAND7/8, 5-point Likert scale) 5x emotional well-being (RAND9B/C/D/F/H, 6-point Likert scale) 4x energy/fatigue (RAND9A/E/G/I, 6-point Likert scale) 4x general health perceptions (RAND11A-D, 5-point Likert scale). The additional items assess the general health perceived by participants (all on a 5-point Likert scale), either at the time of the questionnaire (RAND1), compared to a year ago (RAND2), or compared to the time of the previous questionnaire (RAND2A). Scoring: Scores between 0-100% can be calculated for each of the eight domains/scales. A higher score is indicative for higher well-being. In addition, domains representing physical and mental health can be summarized into a “physical component score” and a “mental component score”. Standard scoring procedures and syntaxes are available from Lifelines at request. Validity: The reliability and validity of the RAND 36-Item Health Survey 1.0 were investigated in a population sample of 1,063 inhabitants of a Dutch township (Emmen), all age 18 or older. 35% were male and 65% were female and the mean age of the sample was 44.1 years 2). To assure content validity in comparison with accepted definitions of health, multiple dimensions of health were included to the RAND-36 questionnaire. Dimensions of health that were most frequently included in health questionnaires, i.e. physical, social- and role functioning, mental health and general health perceptions were included. Two dimensions were included for which substantial empirical evidence existed, i.e. pain and vitality. The predictive value of the RAND-36 has been established using the prevalence of chronic complaints as criterion. Step-wise multiple regression showed that the eight RAND-36-scales explained 41% variance of the number of chronic conditions, 34% of the number of chronic conditions requiring a medical consult and 29% of the conditions for which drugs were prescribed. Construct validity of the RAND-36 is indicated by: Positive and significant correlations between RAND-36 scales and similar scales of the Nottingham health profile (NHP), Pearson’s r = 0.42-0.69, all p<0.001 Correlations of: RAND-36 physical functioning scale and Groninger Activiteiten Restrictie Schaal (GARS), r=0.65, p<0.001 RAND-36 mental health scale and State and Trait Anxiety Inventory (STAI), r=-0.72, p<0.001 Center for Epidemiological Studies Depression Scale (CES-D),r=-0.91, p<0.001 Algemene Gezondheidsvragenlijst (AGV), r=0.76, p<0.001. RAND-36 pain scale and self rated pain on a 0-10 scale, r=-0.55, p<0.001. The internal consistency of the RAND-36 was moderate to high. Cronbach’s alpha values for the various scales varied from 0.71 for social functioning to 0.92 for physical functioning. Test-retest correlations were based on repeated measurements after two and six months in groups of 159 and 410 persons respectively. Test-retest correlations using a two month time interval varied from 0.58 for social functioning to 0.82 for physical functioning. Using a six months interval, the test-retest correlations varied from 0.40 (role restrictions due to emotional problem) to 0.75 (general health perception). This is acceptable for an instrument that is required sensitive to health changes over time. Responsiveness of the SF-36 (which is highly identical to RAND-36) has been demonstrated in the Whitehall II longitudinal cohort study (n=7267, mean follow-up=36 months)3). In this study, within-person change in scores on the SF-36 by age, sex, employment grade and disease status were measured. Health functioning, as measured by the SF-36 changed in hypothesized directions with age, employment grade and disease status, suggesting that the SF-36 and RAND-36 are sensitive to changes in health in general populations.
Type de données
integer
Alias
- UMLS CUI [1,1]
- C3826892
- UMLS CUI [1,2]
- C2964552