Table 3.
Age Differences in ISI Scores and Sleep Parameters (First Wave).
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| TOTAL (M, SD) | AGE CATEGORIES | F(DF) | P | η2p | ||||
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| <24Y (M, SD) | 25–44Y (M, SD) | 45–64Y (M, SD) | 65Y+ (M, SD) | |||||
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| ISI pre | 6.00 (4.91) | 6.91 (5.15) | 5.76 (4.82) | 6.08 (4.88) | 5.31 (4.75) | 12.95 (3, 5116) | <.001 | .01 |
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| ISI peri | 8.82 (5.91) | 9.61 (6.13) | 9.04 (5.89) | 8.63 (5.85) | 6.72 (5.32) | 24.42 (3,5116) | <.001 | .01 |
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| BT pre | 23:02 (1:10) | 23:28 (1:21) | 22:55 (1:07) | 22:57 (1:07) | 23:20 (1:00) | 55.93 (3,5160) | <.001 | .03 |
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| BT peri | 23:24 (1:29) | 00:17 (1:51) | 23:16 (1:28) | 23:11 (1:12) | 23:24 (1:08) | 123.85 (3,5580) | <.001 | .06 |
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| RT pre | 7:08 (1:18) | 7:58 (1:36) | 7:00 (1:14) | 6:50 (1:05) | 7:45 (0:58) | 189.50 (3,5160) | <.001 | .10 |
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| RT peri | 7:53 (1:48) | 9:29 (2:03) | 7:43 (1:42) | 7:23 (1:30) | 7:52 (1:07) | 317.44 (3,5580) | <.001 | .15 |
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| TST pre | 7:16 (1:05) | 7:38 (1:18) | 7:17 (0:59) | 7:02 (1:01) | 7:19 (1:07) | 58.11 (3,5160) | <.001 | .03 |
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| TST peri | 7:07 (1:22) | 7:52 (1:27) | 7:06 (1:19) | 6:47 (1:18) | 7:09 (1:15) | 126.11 (3,5580) | <.001 | .06 |
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| TIB pre | 8:05 (1:08) | 8:29 (1:29) | 8:04 (1:00) | 7:52 (1:04) | 8:25 (1:10) | 65.86 (3,5160) | <.001 | .04 |
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| TIB peri | 8:28 (1:25) | 9:12 (1:28) | 8:26 (1:25) | 8:12 (1:20) | 8:28 (1:13) | 99.40 (3,5580) | <.001 | .05 |
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| SOL pre | 0:19 (0:20) | 0:25 (0:25) | 0:19 (0:19) | 0:17 (0:17) | 0:19 (0:19) | 32.60 (3,5160) | <.001 | .02 |
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| SOL peri | 0:30 (0:33) | 0:41 (0:43) | 0:31 (0:33) | 0:26 (0:29) | 0:24 (0:26) | 42.12 (3,5580) | <.001 | .02 |
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| SE pre | 89.69 (9.94) | 89.97 (10.06) | 90.28 (9.47) | 89.41 (10.11) | 86.76 (11.07) | 14.09 (3,5158) | <.001 | .01 |
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| SE peri | 84.30 (13.28) | 85.74 (13.30) | 84.42 (13.11) | 83.48 (13.55) | 84.29 (12.84) | 5.67 (3,5570) | .001 | .003 |
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Note: y = years; pre = pre-lockdown; peri = peri-lockdown; ISI = Insomnia Severity Index; TST = total sleep time; TIB = time in bed; SOL = sleep onset latency; SE = sleep efficiency.