Pain, unhealthy days and poor perceived health among Japanese workers

Objectives The current research aimed to study the relationship between health-related quality of life (poor perceived health/unhealthy days) and workers’ pain. Methods This cross-sectional study was conducted among 1360 Japanese workers of a Japanese company in Kyushu. Health-related quality of life was measured by HRQOL-4 tool developed by Centers for Disease Control and Prevention of the USA. Pain was assessed by numeric rating scale with...