The association between 25-dehydroxy vitamin D and lower respiratory infection in children aged less than “5” years in ImamReza hospital,Bojnurd,Iran

Objective: to clarify the association between vitamin d deficiency and acute respiratory infection in children below age 5 years. methods: the cross-sectional study was conducted at imam reza hospital in bojnurd,iran,in june 2013 and comprised 90 children below 5 years of age suffering from respiratory infections. they was selected on the basis of purposive sampling and were then categorised into two equal groups of 'acute' and 'non-acute' respiratory infection. data collection was done using a questionnaire and serumlevel of 25-dehydroxycalcciferol wasmeasured. spss 11 was used to analyse and interpret the data. result: in the group of children with respiratory disorders,9 (42.9%) exhibited vitamin d deficiency. there were no significant differences between the two groups in terms of demographic characteristics such as age,intrauterine age,weight,birth-weight,head circumference,height,gender,living area and respiratory distress (p>0.05 each). vitamin d deficiency showed no meaningful statistical relation with acute respiratory infections (p>0.05). conclusion: more studies with higher sample size and are recommended. © 2015,pakistan medical association. all rights reserved.