Organizational factors associated with work-related sleep problems in a nationally representative sample of Korean workers.

ABSTRACT

PURPOSE: The purpose of this study was to assess the association of organizational factors with work-related sleep problems (WRSP) among Korean workers. METHODS: The data were derived from the First Korean Working Conditions Survey conducted in 2006 with a representative sample of the Korean working population (n = 10,039). RESULTS: The overall prevalence of WRSP was 5.1% (95% confidence interval (CI) 4.7-5.5). Those who experienced sexual harassment at work (adjusted odds ratio (aOR) 3.47 95% CI 1.77-6.81), discrimination due to sex (aOR 2.44 95% CI 1.36-4.36) or age (aOR 2.22 95% CI 1.52-3.23), violence at work (aOR 1.98 95% CI 1.06-3.68), threat of violence (aOR 1.96 95% CI 1.05-3.66), poor work-life balance (aOR 1.78 95% CI 1.44-2.20), low job satisfaction (aOR 1.69 95% CI 1.37-2.09), high cognitive (OR 1.64 95% CI 1.32-2.03) and emotional (aOR 1.53 95% CI 1.22-1.91) demands, job insecurity (aOR 1.32 95% CI 1.07-1.63), and high work intensity (aOR 1.55 95% CI 95% CI 1.25-1.92) had an increased risk of WRSP compared to their respective counterparts (p < 0.01). Low social support was not significantly associated with WRSP (aOR 0.88 95% CI 0.67-1.15). CONCLUSION: The results revealed that poor psychosocial working conditions may be related to a high prevalence of WRSP among representative Korean workers.