Effects of a nine-month occupational intervention on health-related quality of life

The aim of this study was to evaluate the effectiveness of vocationally outpatient oriented rehabilitation on an intervention group, compared with a control group that did not take part in the intervention. The groups were compared for health-related quality of life (HRQoL) by the quantitative indicator RAND 36. Data were obtained by a self-report at baseline and at nine months follow-up. Differences between base-line and follow-up were analyzed within group and between the groups. The study population consisted of 751 municipal employees aged between 26 and 64 years; an intervention with 463 women and 115 men ( n = 578), and a control group with 138 women and 35 men ( n = 173). In this study we focused on those who had answered to all questions in RAND 36, thus 581 remained. Of these, 388 were in the intervention group (mean age 49.0 years) and 110 in the control group (mean age 48.4 years). Intervention was based on cognitive behavioral therapy. Participants in the 9-month outpatient intervention group showed statistically significant increase in all eight RAND 36 areas. Most improvement was seen in the psychosocial functioning index ( p = 0.002). Although there were no statistically significant changes in RAND 36 components in the control group, difference in changes between groups were seen in energy and fatigue ( p < 0.001), social functioning ( p = 0.032) and general health perceptions 0.027 in favor of the intervention group. The results suggest that a cognitive behavioral intervention as an early rehabilitation program is effective in increasing employees' quality of life, as measured by RAND 36.