Analysis of Vitamin D Status and Influencing Factors in Children and Adolescents

Objective: To analyze the nutritional status of children and adolescents aged 6–17 years in Hebei Province during the period 2022–2023, as well as the factors that affect this status. This research aims to provide insights for improving the current situation regarding vitamin D nutrition among children and adolescents. Methods: Based on the 2022–2023 Chinese Residents’ Nutrition and Health Status Survey, a multi-stage stratified cluster sampling method was used to select children and adolescents aged 6–17 years for general information surveys, dietary assessments, anthropometric measurements, and laboratory tests. Logistic regression models were utilized to analyze the factors contributing to vitamin D deficiency or insufficiency. Results: A total of 2,114 children and adolescents aged 6–17 years were included in this survey…