Adjusted odds ratio of myopia stratified according to quartile levels of blood vitamin A in representative Korean adults aged 20 years or older.

Logistic regression analysis was performed by adding variables step by step to investigate the individual effect of each variable on the outcome. Value is described as odd ratio (95% confidence intervals). Model 1: adjusted for age and sex. Model 2: adjusted for age, sex, income, education, hypertension, diabetes, and obese.

本研究采用逐步引入变量的方式开展logistic回归分析（logistic regression analysis），以探究各变量对结局的单独影响。结果以优势比（odds ratio）及其95%置信区间形式呈现。模型1校正年龄与性别因素；模型2校正年龄、性别、收入、学历、高血压、糖尿病及肥胖相关因素。