Analysis for policy to overcome barriers to reducing the prevalence of vitamin a deficiency among children (15–23 months) in Iran

Table 4 The identified themes and sub-themes

#	*Theme*	*Subtheme*	*Issues*
1	*Basic factors*	*Governance*	*Evaluation and monitoring*
		*Infrastructure*	*Healthcare network*
		*Infrastructure*	*Registration system*
		*Organization*	*Intersectional cooperation research*
2	*Underlying factors*	*Economic factors*	*Budget* *Affordability*
		*Social factors*	*Ethnic Composition,* *Marginalization,* *Food Culture,* *Health Demands*
		*Geographical factors*
3	*Immediate factors*	*Policy Implementation*	*Supplementation* *Diet,* *Health intervention*

ISSN: 1471-2458