Table 6 Multivariate general linear model for usual bedtime and myopic progression over 24 months.
From: Sleeping late is a risk factor for myopia development amongst school-aged children in China
Variable | Coef. (95% CI) | p-value |
|---|---|---|
Area: Sub-urban | 1 (Reference) | |
Urban | − 0.11 (− 0.17, − 0.06) | p < 0.001 |
Age (years): 6 years | 1 (Reference) | |
7 years | − 0.003 (− 0.05, −0.04) | p = 0.91 |
8 years | − 0.02 (− 0.08, − 0.04) | p = 0.46 |
Gender: Male | 1 (Reference) | |
Female | − 0.15 (− 0.19, − 0.11) | p < 0.001 |
Usual bedtime: Before 9 p.m. | 1 (Reference) | |
9 p.m. to 9:29 p.m. | − 0.06 (− 0.16, − 0.03) | p = 0.21 |
9:30 pm and after | − 0.16 (− 0.26, − 0.05) | p = 0.004 |
Sleep duration (hours): < 9.5 h | 1 (Reference) | |
9.5 to 10 h | − 0.02 (− 0.08, − 0.03) | p = 0.41 |
10 h and more | − 0.09 (− 0.17, − 0.02) | p = 0.045 |
Outdoor weekly total (per h) | 0.01 (0.004, 0.01) | p < 0.001 |
