The Risk of Developing Diabetes in Association With Long Working Hours Differs by Shift Work Schedules.

ABSTRACT:

Background

The impact of long working hours on diabetes is controversial; however, shift work is known to increase the risk of diabetes. This study aimed to investigate the association between long working hours and diabetes among civil servants in Japan separately by shift work schedules.

Methods

A prospective cohort study was conducted from April 2003 to March 2009. A total of 3195 men aged ≥35 years who underwent an annual health checkup at baseline were analyzed by shift work schedules (2371 non-shift workers and 824 shift workers). Self-reported working hours were categorized as 35-44 and ≥45 hours per week. The incidence of diabetes was confirmed by fasting plasma glucose concentration ≥126 mg/dL and/or self-reported medical diagnosis of diabetes at the annual checkup.

SUBMITTER: Bannai A 

PROVIDER: S-EPMC5008968 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature