| Number of times breakfast was skipped |
| Number of times lunch was skipped |
| Number of times dinner was skipped |
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≥3 times n = 161 | <3 times n = 423 | p-value | ≥3 times n = 65 | <3 times n = 519 | p-value | ≥3 times n = 24 | <3 times n = 560 | p-value | |
Sleep duration | 6.76 ± 1.55 | 6.66 ± 1.26 | 0.416 | 6.49 ± 1.59 | 6.71 ± 1.31 | 0.42 | 6.21 ± 1.37 | 6.71 ± 1.34 | 0.087 |
PSQI-J |
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Global score | 4.88 ± 2.85 | 4.68 ± 2.61 | 0.43 | 4.91 ± 2.95 | 4.72 ± 2.64 | 0.761 | 5.00 ± 3.06 | 4.73 ± 2.66 | 0.784 |
Component scores |
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Sleep quality (C1) | 1.43 ± 0.80 | 1.38 ± 0.74 | 0.366 | 1.43 ± 0.73 | 1.39 ± 0.76 | 0.451 | 1.54 ± 0.83 | 1.38 ± 0.76 | 0.33 |
Sleep latency (C2) | 0.99 ± 0.90 | 0.86 ± 0.84 | 0.159 | 0.95 ± 0.94 | 0.89 ± 0.85 | 0.791 | 0.96 ± 0.86 | 0.89 ± 0.86 | 0.651 |
Sleep duration (C3) | 1.12 ± 0.99 | 1.20 ± 0.86 | 0.308 | 1.26 ± 1.02 | 1.17 ± 0.88 | 0.487 | 1.38 ± 1.01 | 1.17 ± 0.89 | 0.249 |
Sleep efficiency (C4) | 0.29 ± 0.69 | 0.31 ± 0.71 | 0.981 | 0.37 ± 0.84 | 0.29 ± 0.69 | 0.799 | 0.46 ± 0.93 | 0.30 ± 0.69 | 0.433 |
Sleep disturbance (C5) | 0.32 ± 0.50 | 0.33 ± 0.50 | 0.976 | 0.32 ± 0.50 | 0.33 ± 0.50 | 0.958 | 0.21 ± 0.41 | 0.33 ± 0.50 | 0.255 |
Daytime dysfunction (C7) | 0.72 ± 0.82 | 0.61 ± 0.76 | 0.157 | 0.57 ± 0.73 | 0.65 ± 0.79 | 0.468 | 0.46 ± 0.66 | 0.65 ± 0.78 | 0.247 |