Table 3 Association between sleep-wake schedule and self-reported myopia according to school grade.
Variables | Primary school | Junior high school | Senior high school | |||||
|---|---|---|---|---|---|---|---|---|
OR (95%CI) | P value | OR (95%CI) | P value | OR (95%CI) | P value | |||
Nighttime sleep duration | ||||||||
< 7 h/d | 1.20 (1.05–1.38) | 0.008 | 1.18(1.02–1.36) | 0.029 | 1.82 (1.28–2.59) | 0.001 | ||
7–8 h/d | 1.04 (0.95–1.14) | 0.431 | 1.05 (0.91–1.22) | 0.493 | 1.53 (1.05–2.23) | 0.028 | ||
>= 8 h/d | 1.00 | 1.00 | 1.00 | |||||
Daytime nap duration | ||||||||
None | 1.16 (1.06–1.28) | 0.002 | 0.93 (0.83–1.05) | 0.240 | 0.95 (0.75–1.21) | 0.670 | ||
< 0.5 h/d | 1.06 (0.95–1.19) | 0.309 | 1.04 (0.93–1.15) | 0.487 | 1.02 (0.92–1.13) | 0.718 | ||
>= 0.5 h/d | 1.00 | 1.00 | 1.00 | |||||
Weekday bedtime | ||||||||
Regular | 1.00 | 1.00 | 1.00 | |||||
Irregular | 1.22 (1.11–1.33) | < 0.001 | 0.96 (0.87–1.05) | 0.340 | 0.94 (0.84–1.04) | 0.230 | ||
Weekday wake time | ||||||||
Regular | 1.00 | 1.00 | 1.00 | |||||
Irregular | 1.25 (1.11–1.41) | < 0.001 | 1.14 (1.01–1.30) | 0.034 | 1.12 (0.98–1.27) | 0.094 | ||
Weekend bedtime | ||||||||
Did not deviate | 1.00 | 1.00 | 1.00 | |||||
Delayed < 1 h/d | 1.15 (1.03–1.27) | 0.011 | 1.09 (0.96–1.22) | 0.182 | 1.03 (0.90–1.19) | 0.664 | ||
Delayed > = 1 h/d | 1.26 (1.11–1.42) | < 0.001 | 1.16 (1.02–1.31) | 0.024 | 1.02 (0.89–1.18) | 0.752 | ||
Weekend wake time | ||||||||
Did not deviate | 1.00 | 1.00 | 1.00 | |||||
Delayed < 1 h/d | 1.09 (0.98–1.21) | 0.125 | 1.13 (0.99–1.28) | 0.073 | 0.93 (0.78–1.10) | 0.372 | ||
Delayed > = 1 h/d | 1.18 (1.05–1.32) | 0.004 | 1.07 (0.95–1.22) | 0.243 | 0.99 (0.85–1.17) | 0.974 | ||
Sleep-wake time on weekdays | ||||||||
Regular | 1.00 | 1.00 | 1.00 | |||||
Irregular | 1.23 (1.12–1.34) | < 0.001 | 0.97 (0.89–1.06) | 0.528 | 0.97 (0.88–1.08) | 0.617 | ||
Social jetlag | ||||||||
< 1 h | 1.00 | 1.00 | 1.00 | |||||
>= 1 h | 1.11 (1.02–1.21) | 0.012 | 1.06 (0.96–1.16) | 0.260 | 1.06 (0.95–1.19) | 0.274 | ||