Total and uninterrupted sleep hours–on call versus not on call
| Total Sleep Hours/Call | Total Sleep Hours/Not on Call | Uninterrupted Sleep Hours/Call | Uninterrupted Sleep Hours/Not on Call | |
|---|---|---|---|---|
| Less than 4 | 20 (12.2%) | 0 | 70 (42.7%) | 2 (1.2%) |
| 4–6 | 106 (64.6%) | 19 (11.6%) | 77 (47%) | 31 (18.9%) |
| 6–8 | 38 (23.2%) | 145 (88.4%) | 17 (10.4%) | 131 (79.9%) |
| P value | .01 | .05 | ||