Table 5.
Different sleep duration among age groups in 2010 and 2014 (%).
| Age Group (Year) | <7 h | ≥7–8 h | ≥8–9 h | ≥9 h | Total | χ2 | p | |
|---|---|---|---|---|---|---|---|---|
| 2010 | 7–12 | 416 (9.32) | 880 (19.68) | 1617 (36.39) | 1548 (34.61) | 4461 | 4000.09 | 0.000 |
| 13–15 | 1243 (34.24) | 1346 (37.83) | 721 (20.17) | 266 (7.75) | 3576 | |||
| 16–18 | 2138 (61.08) | 1029 (29.55) | 240 (7.01) | 84 (2.36) | 3491 | |||
| Total | 3797 (32.94) | 3255 (28.24) | 2578 (22.36) | 1898 (16.46) | 11,528 | |||
| 2014 | 7–12 | 848 (16.54) | 1070 (20.87) | 1636 (31.92) | 1572 (30.67) | 5126 | 3613.78 | 0.000 |
| 13–15 | 1489 (41.67) | 1283 (35.91) | 606 (16.96) | 195 (5.46) | 3573 | |||
| 16–18 | 2154 (63.82) | 988 (29.27) | 169 (5.01) | 64 (1.90) | 3375 | |||
| Total | 4491 (37.20) | 3341 (27.67) | 2411 (19.97) | 1831 (15.16) | 12,074 |