Shift work and diabetes

Women who work rotating night shifts are at higher risk of developing type 2 diabetes, according to a large observational study by researchers from Harvard School of Public Health.

The research involved data from two Nurses’ Health Studies, with a total of 238,381 women. Statistical models showed that duration of rotating night shift work was strongly associated with an increased risk of type 2 diabetes in both cohorts, and that the risks of women developing type 2 diabetes increased with the numbers of years working rotating shifts. 

However, these associations were slightly weaker after the authors took other factors into consideration.

PLoS Med 8(12): e1001141. doi:10.1371/journal.pmed.1001141