出版社：THE SCHOOL OF PUBLIC HEALTH, TEHRAN UNIVERSITY OF MEDICAL SCIENCES
摘要：Background The aim of this study was to determine adherence and attrition rates in a lifestyle intervention for people with metabolic syndrome. Methods Adherence and attrition data from a randomized controlled trial were collected. Participants were classified as adherence group if they completed assessments at 3 and 6 months follow-up and as attrition group if they did not. Physical activity and quality of life was measured using the International Physical Activity Questionnaire (IPAQ) and the Short Form Health Survey (SF-36). Generalized Estimating Equations (GEE) was used to explore predictors of attrition. Results The mean age of participants (n=160) was 44.1 years. Attrition rate in the intervention and control groups at first follow-up were the same (20%). However, the control group had significantly higher attrition rate (%33.7) compared to the intervention group (%20) at 6 months follow up. Results showed that low educated participants were more likely to not stay in the study than better educated participants (OR=2.95,CI:1.39-6.33, P =0.05). According with length of the study, attrition was decreased at six month (OR=0.66,CI:0.52-0.83, P <0.001). Also, some aspects of health-related quality of life contributed to the attrition rate. Those who had higher scores on general health (OR=0.66,CI:0.54-0.97, P =0.023), social functioning (OR=0.44,CI:0.40-0.76, P =0.032), role emotional (OR=0.74,CI:0.54-0.98, P =0.18), vitality (OR=0.55,CI:0.38-0.90, P =0.015) and mental health (OR=0.63,CI:0.45-0.85, P =0.033) were more likely to stay in the study. Conclusion It remains a concern that Web-based lifestyle programs may fail to reach those who need it most. Participant in the study generally had better quality of life than those who were lost to follow up.
关键词：Web-based intervention; Metabolic syndrome; Attrition; Adherence; R controlled trial
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