Table 4.
Age Differences in ISI Scores and Sleep Parameters (Second 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 | 6.1 (5.1) | 6.00 (4.70) | 5.89 (4.80) | 6.56 (5.47) | 5.89 (5.11) | 2.78 (3,2095) | .04 | .004 |
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| ISI peri | 10.3 (6.5) | 9.96 (6.10) | 10.33 (6.40) | 10.66 (6.84) | 8.75 (6.62) | 3.74 (3,2095) | .01 | .004 |
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| BT pre | 22:58 (1:07) | 23:12 (1:09) | 22:54 (1:09) | 22:53 (1:05) | 23:16 (0:52) | 9.11 (3,2099) | <.001 | .01 |
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| BT peri | 23:06 (1:20) | 23:31 (1:28) | 23:02 (1:24) | 22:59 (1:10) | 23:30 (1:07) | 16.80 (3,2399) | <.001 | .02 |
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| RT pre | 7:04 (1:19) | 7:57 (1:22) | 6:59 (1:16) | 6:42 (1:12) | 7:32 (1:01) | 78.42 (3,2096) | <.001 | .10 |
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| RT peri | 7:17 (1:32) | 8:29 (1:40) | 7:14 (1:30) | 6:48 (1:16) | 7:34 (1:13) | 116.84 (3,2397) | <.001 | .13 |
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| TST pre | 7:14 (1:03) | 7:53 (0:57) | 7:16 (0:59) | 6:57 (1:05) | 7:02 (1:05) | 61.59 (3,2099) | <.001 | .08 |
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| TST peri | 6:52 (1:19) | 7:42 (1:13) | 6:54 (1:16) | 6:31 (1:17) | 6:46 (1:14) | 73.83 (3,2399) | <.001 | .09 |
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| TIB pre | 8:06 (1:05) | 8:45 (1:06) | 8:05 (1:02) | 7:49 (1:01) | 8:16 (1:06) | 60.58 (3,2096) | <.001 | .08 |
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| TIB peri | 8:10 (1:13) | 8:57 (1:14) | 8:11 (1:11) | 7:49 (1:06) | 8:13 (1:10) | 79.44 (3,2395) | <.001 | .09 |
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| SOL pre | 0:21 (0:19) | 0:24 (0:20) | 0:21 (0:19) | 0:19 (0:19) | 0:20 (0:19) | 3.84 (3,2099) | .01 | .01 |
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| SOL peri | 0:31 (0:31) | 0:36 (0:33) | 0:31 (0:30) | 0:30 (0:30) | 0:28 (0:29) | 3.90 (3,2400) | .01 | .01 |
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| SE pre | 89.35 (9.61) | 90.04 (8.51) | 89.98 (8.74) | 88.80 (10.52) | 85.51 (12.28) | 8.43 (3,2095) | <.001 | .01 |
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| SE peri | 84.28 (12.76) | 86.32 (11.14) | 84.49 (12.67) | 83.35 (13.22) | 82.89 (12.76) | 5.18 (3,2395) | .001 | .01 |
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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.