From: Sleep and recovery in physicians on night call: a longitudinal field study
Night after day-time work | Night call | 1st post-call night | 2nd post-call night | Saturday night | Type III F-test | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | Mean | 95% CI | P-value | |
AW sleep measures | |||||||||||
Total sleep time (min) | 364a | 344-383 | 186 | 148-224 | 419b | 385-452 | 399b | 373-425 | 412b | 393-431 | < 0.001 |
Sleep efficiency1 (%) | 90 | 88-92 | 86c | 83-90 | 90 | 89-92 | 91 | 90-92 | 89d | 88-91 | 0.045 |
KSS measures2 | |||||||||||
Sleepiness (mean) | 5.6 | 4.9-6.2 | --- | 6.1 | 5.4-6.8 | 5.5 | 4.8-6.3 | 5.1 | 4.2-6.0 | 0.206 | |
Mental fatigue | 6.1 | 5.6-6.6 | --- | 7.1e | 6.5-7.7 | 6.1 | 5.4-6.9 | 5.8 | 5.0-6.7 | 0.004 | |
KSD measures3 | |||||||||||
SQI4 | 4.2 | 3.9-4.4 | --- | 4.3 | 4.1-4.5 | 4.3 | 4.0-4.5 | 4.2 | 3.9-4.4 | 0.673 | |
Sufficient sleep | 3.0 | 2.7-3.4 | --- | 2.9 | 2.5-3.3 | 3.1 | 2.7-3.6 | 3.6 | 3.2-4.0 | 0.052 | |
Ease awakening | 2.6f | 2.2-3.0 | --- | 2.8f | 2.5-3.2 | 3.0 | 2.6-3.4 | 3.4 | 3.0-3.8 | 0.042 | |
Well rested | 2.6f | 2.2-3.0 | --- | 2.4g | 2.0-2.8 | 3.0 | 2.6-3.4 | 3.3 | 2.9-3.7 | 0.013 |