Association between serum vitamin D and refractive status in United States adolescents: A cross-sectional study

ABSTRACT:

Purpose

We performed this study to determine the relationship between serum vitamin D levels and refractive status in adolescents aged 12–19 years.

Methods

Cross-sectional study using the National Health and Nutrition Examination Survey (NHANES) database from 2001 to 2006. We used weighted multivariate linear regression models to assess the association between serum vitamin levels and adolescent refractive status and then built a smooth curve fitting to investigate their internal non-linear relationships. Finally, subgroup analysis was performed according to gender, and the threshold effect of serum vitamin D levels on spherical equivalent degree was analyzed using a two-piecewise linear regression model.

Result

A total of 5,901 adolescents aged 12 to 19 years we

SUBMITTER: Li Y 

PROVIDER: S-EPMC9773557 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature