Table 4 Duration of wake prior to work between shift types calculated using wrist-worn actigraphs (n = 44).

From: The Impact of Shift Work on Sleep, Alertness and Performance in Healthcare Workers

Shift Pattern

Time awake from main sleep (Mean ± SD) (h)

Range (h)

Sleep entries(n)

Day to Night/Evening to Night

12.10 ± 1.99

9.08–15.12

10

Night to Night

4.70 ± 2.04*

0.45–9.03

107

Evening to Day

1.68 ± 0.52*

0.52–3.12

33

Day to Day

1.78 ± 0.78*

0.52–5.62

57

Day to Evening

4.78 ± 1.61*

2.05–8.20

21

Evening to Evening

5.26 ± 1.63*

3.02–8.00

13

Off to Evening

4.83 ± 1.56*

2.20–8.27

17

Off to Night

12.15 ± 3.38

2.02–17.18

28

  1. *p < 0.001 indicate significant differences in wake duration compared to the day to night/evening to night shift transitions after adjusting for Bonferroni correction.
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