Table 3

Association between shift work and diabetes among 19 873 Danish female nurses

Person yearsCasesCrude* modelFully adjusted† modelFully adjusted† model+BMI
Work shiftYearsNHR (95% CI)HR (95% CI)HR (95% CI)
Day shifts193 6245091.001.001.00
Evening shifts31 6191041.24 (1.01 to 1.53)1.21 (0.98 to 1.50)1.29 (1.04 to 1.59)
Night shifts17 118841.84 (1.46 to 2.31)1.73 (1.37 to 2.19)1.58 (1.25 to 1.99)
Rotating shifts65 7161761.04 (0.87 to 1.23)1.06 (0.89 to 1.26)1.08 (0.91 to 1.28)
  • *Adjusted for age.

  • †Adjusted for age, smoking status, smoking intensity, physical activity, alcohol consumption (g/week), intake of fatty meat, marital status, employment status, acute myocardial infarction, hypertension, fruit and vegetables intake.

  • BMI, body mass index.