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. 2022 Dec 12;69:151665. doi: 10.1016/j.apnr.2022.151665

Table 2.

Differences in sleep quantity between on and off-duty days for day and night shift nurses.

On-duty days
(M ± SD)
Off-duty days
(M ± SD)
On-duty – off-duty between group differences
Mean difference p-Value Cohen's d
Average daily minutes of sleep
 Day shift nurses (n = 23) 406.33 ± 96.2 411.43 ± 115.08 5.11 0.796 0.048
 Night shift nurses (n = 18) 366.44 ± 151.29 448.93 ± 128.11 82.49 0.004 0.594

Abbreviations: Mean plus or minus Standard Deviation (M ± SD).

p < 0.05.