Fig. 2

Multivariate logistic regression results for myopia. A multivariate logistic regression model with 12 indicators (including ethnicity, sex, age range, height, length of time spent in rural areas, education level, activity level, occupation, income, pterygium status of the same eye, diabetes status and smoking practice) was used to assess risk factors for myopia. Myopic individuals were compared to emmetropic individuals. The OR of ethnicity was Yi/Han. The OR of sex was female/male. The OR of occupation was close-workers/non-close-workers. The OR of pterygium was the eye with pterygium/the eye without pterygium. The OR of diabetes was individuals with diabetes/individuals without diabetes. The OR of smoking was individuals who had smoked/individuals who had never smoked.