Comparison of Worker's Health Promotion Interventions: Cluster randomized controlled trial

Abstract

This study compared different strategies to improve occupational health and evaluated their impact on some quality of life domains (health, physical activity, occupational environment, and perception of quality of life). This cluster randomized controlled clinical trial enrolled 172 men and women aged 26.10 ± 6.03 who worked in the administrative department of 4 companies. The interventions lasted three months. Employees in company A (EA) received workplace exercises (WE) and educational interventions (EI) (posters with healthcare and quality of life recommendations and computer messages); in Company B (EB), only WE; in company C (EC), only EI; and in company D (ED), employees formed a control group. A quality of life and health (QVS-80) questionnaire was used for all assessments. The Wilcoxon test was used to compare quality of life before and after interventions, and the Kruskal-Wallis test (p ≤ 0.05), for each quality of life domain. The scores for occupational environment increased in companies A and B (p <0.01), which suggests that WE may improve the occupational environment.