From: Comparison of sleep quality based on direction of shift rotation in electronics workers
Direction of shift rotation | Number of participants | Cases of poor sleep quality | Age- and sex- adjusted OR (95Â % CI) | Multivariate- adjusted OR (95Â % CI) |
---|---|---|---|---|
Total | ||||
 Forward rotation | 4238 | 1189 | Reference | Reference |
 Backward rotation | 512 | 193 | 2.01 (1.64–2.47) | 1.95 (1.58–2.41) |
Male | ||||
 Forward rotation | 1359 | 287 | Reference | Reference |
 Backward rotation | 390 | 133 | 2.02 (1.57–2.59) | 1.92 (1.47–2.49) |
Female | ||||
 Forward rotation | 2879 | 902 | Reference | Reference |
 Backward rotation | 122 | 60 | 2.12 (1.48–3.05) | 2.13 (1.47–3.08) |