Table 3.
Total sleep time between different shift transitions and between consecutive night shifts calculated using wrist-worn actigraphs (n = 44) and sleep diaries (n = 52).
| Actigraphic Sleep(n = 44) | Subjective Sleep(n = 52) | |||||
|---|---|---|---|---|---|---|
| Shift Pattern |
Total sleep time between shifts (Mean ± SD) (h) | Range (h) | Sleep entries (n) | Total sleep time between shifts (Mean ± SD) (h) | Range (h) | Sleep entries (n) |
| Day to Day | 5.83 ± 0.92 | 3.15–7.48 | 57 | 6.71 ± 0.96 | 4.00–8.62 | 68 |
| Night to Night | 5.74 ± 1.30 | 2.30–8.57 | 107 | 6.18 ± 1.52 | 1.83–10.33 | 135 |
| Day to Night/Day to Evening | 7.96 ± 1.40** | 5.22–11.08 | 26 | 8.09 ± 2.19** | 2.50–11.98 | 31 |
| Evening to Day | 5.20 ± 0.90 | 3.15–7.28 | 33 | 5.66 ± 0.92** | 4.00–7.42 | 38 |
| Evening to Night/Evening to Evening | 7.53 ± 1.60** | 5.43–10.77 | 18 | 7.92 ± 1.35* | 5.87–11.08 | 22 |
| Off to Off | 7.40 ± 1.28** | 3.75–10.17 | 99 | 8.27 ± 1.72** | 1.83–14.42 | 128 |
| Off to Night/ Off to Evening | 8.00 ± 1.98** | 2.42–12.22 | 45 | 8.50 ± 1.86** | 3.77–12.40 | 57 |
| 1st to 2nd Night | 5.76 ± 1.24 | 2.30–7.80 | 37 | 5.94 ± 1.61 | 1.83–8.13 | 47 |
| 2nd to 3rd Night | 5.69 ± 1.28 | 2.83–7.48 | 36 | 6.10 ± 1.52 | 2.17–8.88 | 46 |
| 3rd to 4th Night | 5.70 ± 1.23 | 3.92–8.57 | 18 | 6.55 ± 1.49 | 4.17–10.33 | 23 |
| 4th to 5th Night | 5.69 ± 1.89 | 2.77–8.10 | 9 | 6.35 ± 1.77 | 3.63–9.72 | 10 |
*p < 0.05 and **p ≤ 0.005 indicate significant differences in sleep duration compared to day to day transition after adjusting for Bonferroni correction.