| Gender (n) | Work period | Person-years at risk | Cases | Adjusted for age and GH and SES | Adjusted for age, GH, SES and BMI, smoking status | Adjusted for age, GH, SES, BMI, smoking status and ergonomic exposures |
| HR (95% CI) | HR (95% CI) | HR (95% CI) | ||||
| Women (3980) | Shift | 13806 | 79 | 1.39 (1.07 to 1.82) | 1.36 (1.04 to 1.78) | 1.34 (1.02 to 175) |
| Day | 43097 | 174 | 1.00 | 1.00 | 1.00 | |
| Men (4025) | Shift | 13000 | 41 | 0.92 (0.65 to 1.31) | 0.94 (0.66 to 1.34) | 0.93 (0.65 to 1.33) |
| Day | 44886 | 132 | 1.00 | 1.00 | 1.00 | |
| All | Shift | 26806 | 120 | 1.19 (0.97 to 1.48) | 1.19 (0.96 to 1.47) | 1.18 (0.96 to 1.46) |
| Day | 87983 | 306 | 1.00 | 1.00 | 1.00 |
GH, general health; SES, socioeconomic status; BMI, body mass index.