Factors influencing initiation and discontinuation of vitamin D supplementation among children 1-24-months-old.

Objectives: To determine vitamin D supplementation frequency among children aged 1-24 months, factors that influence adherence, and reasons for discontinuation of initiated vitamin D.

Methods: This cross-sectional study was conducted using a questionnaire administered to the mothers face-to-face interview of 560 children aged from 1 to 24 months admitted to outpatient clinics from June to December 2017.

Results: A total of 351 children were administered vitamin D, and the rate of supplementation in the first year of life was 83%, while it was only 28% between 13 and 24 months.