25-Hydroxyvitamin D supplementation and health-service utilization for upper respiratory tract infection in young children.

ABSTRACT:

Objective

Upper respiratory tract infections (URTI) are the most common and costly condition of childhood. Low vitamin D levels have been hypothesized as a risk factor for URTI. The primary objective was to determine if serum vitamin D levels were associated with health-service utilization (HSU) for URTI including hospital admission, emergency department visits and outpatient sick visits. The secondary objectives were to determine whether oral vitamin D supplementation in pregnancy or childhood was associated with HSU for URTI.

Design

Cohort study. HSU was determined by linking each child's provincial health insurance number to health administrative databases. Multivariable quasi Poisson regression was used to evaluate the association between 25-hydroxyvitamin D, vitamin D s

SUBMITTER: Omand JA 

PROVIDER: S-EPMC10261635 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature