Table 2 Univariate logistic regression analysis correlating myopia with leisure time activities and the socioeconomic status
Univariate logistic regression analysis | Odds ratio | 95% confidence interval for Odds ratios | p-value | |
|---|---|---|---|---|
Socioeconomic status: | 0.93 | 0.89 | 0.97 | < 0.01 |
Time outdoors duration: | ||||
< 1 h | Reference | |||
1–2 h | 0.90 | 0.53 | 1.53 | 0.70 |
3–4 h | 0.71 | 0.39 | 1.29 | 0.25 |
> 4 h | 0.73 | 0.32 | 1.68 | 0.46 |
Time outdoors frequency: | ||||
Every day | Reference | |||
Every two days | 1.92 | 1.22 | 3.05 | 0.01 |
Two days per week | 2.55 | 1.60 | 4.06 | < 0.01 |
Once per week | 4.08 | 2.09 | 7.95 | < 0.01 |
Near work duration: | ||||
< 1 h | Reference | |||
1–2 h | 2.08 | 1.39 | 3.12 | < 0.01 |
3–4 h | 4.48 | 1.97 | 10.21 | < 0.01 |
> 4 h | 7.63 | 1.25 | 46.77 | 0.03 |
Near work frequency: | ||||
Every day | Reference | |||
Every two days | 1.37 | 0.84 | 2.24 | 0.20 |
Two days per week | 1.45 | 0.82 | 2.56 | 0.20 |
Once per week | 2.63 | 1.52 | 4.56 | < 0.01 |