Table 2.
Sex Differences in ISI Scores and Sleep Parameters (Second Wave).
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|---|---|---|---|---|---|---|
| TOTAL (M, SD) | MALE (M, SD) | FEMALE (M, SD) | T(DF) | P | D | |
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| ISI pre | 6.14 (5.05) | 5.79 (5.12) | 6.31 (5.02) | –2.19 (2098) | .03 | –0.10 |
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| ISI peri | 10.30 (6.54) | 10.05 (6.80) | 10.41 (6.41) | –1.26 (2398) | .21 | –0.10 |
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| BT pre | 22:58 (1:07) | 23:09 (1:13) | 22:53 (1:04) | 5.05 (2098) | <.001 | 0.24 |
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| BT peri | 23:06 (1:20) | 23:14 (1:19) | 23:02 (1:20) | 3.56 (2397) | <.001 | 0.16 |
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| RT pre | 7:04 (1:19) | 6:59 (1:22) | 7:06 (1:18) | –1.78 (2095) | .08 | –0.08 |
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| RT peri | 7:17 (1:32) | 7:10 (1:30) | 7:20 (1:33) | –2.51 (2395) | .01 | –0.11 |
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| TST pre | 7:14 (1:03) | 7:04 (1:03) | 7:19 (1:03) | –4.95 (2098) | <.001 | –0.23 |
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| TST peri | 6:52 (1:19) | 6:43 (1:19) | 6:57 (1:19) | –4.16 (2397) | <.001 | –0.18 |
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| TIB pre | 8:06 (1:05) | 7:50 (1:08) | 8:13 (1:02) | –7.40 (2095) | <.001 | –0.35 |
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| TIB peri | 8:10 (1:13) | 7:55 (1:15) | 8:18 (1:11) | –7.03 (2393) | <.001 | –0.31 |
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| SOL pre | 0:21 (0:19) | 0:19 (0:18) | 0:21 (0:20) | –2.18 (2098) | .03 | –0.10 |
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| SOL peri | 0:31 (0:31) | 0:29 (0:29) | 0:32 (0:31) | –2.54 (2398) | .01 | –0.11 |
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| SE pre | 89.35 (9.61) | 90.06 (9.82) | 89.05 (9.47) | 2.24 (2094) | .03 | 0.11 |
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| SE peri | 84.28 (12.76) | 84.93 (13.05) | 84.01 (12.58) | 1.65 (2393) | .10 | 0.07 |
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Note: pre = pre-lockdown; peri = peri-lockdown; ISI = Insomnia Severity Index; BT = bedtime; RT = rise time; TST = total sleep time; TIB = time in bed; SOL = sleep onset latency; SE = sleep efficiency.