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. 2022 Jun;63(3):299–309. doi: 10.3325/cmj.2022.63.299

Table 10.

Changes in the Split Sleep Questionnaire (SSQ) sleep-wake time assessment (before and during the COVID-19 pandemic)*



SSQ

Assessment before the COVID-19 pandemic Assessment during the COVID-19 pandemic P†
Bedtime
Workdays
22:44 ± 1:25
23:02 ± 2:08
<0.001
Work-free days
23:26 ± 1:58
23:17 ± 2:58
0.351
Waketime Workdays
7:01 ± 1:32
7:25 ± 1:34
<0.001
Work-free days 8:09 ± 1:40 8:23 ± 1:51 <0.001

*Continuous variables are presented as mean and standard deviation.

†t-test for paired samples.