1. Myopia and BMI: a nationwide study of 1.3 million adolescents
- Author
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Alon Peled, Itay Nitzan, Jacob Megreli, Estela Derazne, Dorit Tzur, Orit Pinhas‐Hamiel, Arnon Afek, and Gilad Twig
- Subjects
Male ,Nutrition and Dietetics ,Adolescent ,Endocrinology, Diabetes and Metabolism ,Medicine (miscellaneous) ,Body Mass Index ,Obesity, Morbid ,Cross-Sectional Studies ,Endocrinology ,Thinness ,Risk Factors ,Myopia ,Humans ,Female - Abstract
This study analyzed the association between adolescent BMI and myopia severity.This cross-sectional study comprised 1,359,153 adolescents who were medically examined before mandatory military service. Mild-to-moderate and high myopia were defined based on right-eye refractive data. BMI was categorized based on the US age- and sex-matched percentiles. Logistic regression models were applied separately for women and men to estimate odds ratios (ORs) for myopia per BMI category.A total of 318,712 adolescents had mild-to-moderate myopia and 23,569 had high myopia. Compared with low-normal BMI (reference group), adjusted ORs for mild-to-moderate and high myopia increased with increasing BMI status, reaching 1.39 (95% CI: 1.23-1.57) and 1.73 (95% CI: 1.19-2.51) for men with severe obesity, respectively, and 1.19 (95% CI: 1.12-1.27) and 1.38 (95% CI: 1.14-1.65) for women with mild obesity, respectively. ORs for mild-to-moderate and high myopia were also higher in men with underweight (OR = 1.20; 95% CI: 1.18-1.23 and OR = 1.39; 95% CI: 1.30-1.47) and women with underweight (OR = 1.06; 95% CI: 1.03-1.09 and OR = 1.12; 95% CI: 1.04-1.22). The overall size effect was greater for men than women (pBMI was associated with myopia in a J-shaped pattern, with the size effect being greater for adolescent men than women. This study indicates that both low BMI and high BMI are associated with mild-to-moderate and severe myopia.
- Published
- 2022