Objective To determine the nutritional status and associated factors of vitamin D in primary and middle school students in Shandong Province,so as to provide reference for developing targeted vitamin deficiency interventions.Methods From January to September 2021,using multi-stage stratified random sampling,physical examinations and laboratory tests were carried out among 3 539 primary and middle school students in Shandong Province.Associated factors of vitamin D were analyzed by Logsitc regression analysis.Results The average vitamin D level among primary and middle school students was(17.56±6.65)ng/mL,while the deficiency and severe deficiency rate was 67.4％.Multivariate Logistic regression analysis showed that girls(OR=1.95),students in junior high school(OR=2.14)and senior high school(OR=2.36)were at higher risk of vitamin D deficiency and se-vere deficiency(P＜0.05).Students from coastal areas(OR=0.54),physical examination in summer and autumn(OR=0.74),and 35 g of egg intake per day(OR=0.53),and with outdoor activity time greater than 60-120 min and＞120 min(OR=0.63,0.48)had lower risk of vitamin D deficiency(P＜0.05).Conclusions The nutritional status of vitamin D among elementary and seconda-ry school students in Shandong Province warrants further attention.Intervention measures such as nutritional education,healthy diet and prolonging outdoor activities should be promoted in primary and middle school students.
维普
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