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Subclinical vitamin A deficiency in undersix children in Nagpur, India
D W Khandait1, N D Vasudeo, S P Zodpey
1Department of Preventive and Social Medicine, Government Medical College, Nagpur, India.
Insights
Subclinical vitamin A deficiency affects 35.7% of children under six in Nagpur
Area of Science:
- Nutritional epidemiology
- Public health
- Ophthalmology
Background:
- Subclinical vitamin A deficiency poses a significant public health risk in developing nations.
- Early detection and intervention are crucial to prevent irreversible health consequences like xerophthalmia.
Purpose of the Study:
- To estimate the prevalence of subclinical vitamin A deficiency in urban slum children under six years old in Nagpur, India.
- To identify potential risk factors associated with this deficiency.
Main Methods:
- A cross-sectional study involving 308 non-xerophthalmic children under six.
- Conjunctival impression cytology was used as the diagnostic method.
- Random sampling was employed in urban slums of Nagpur.
Main Results:
- A high prevalence of 35.7% for subclinical vitamin A deficiency was found.
- The deficiency showed a non-significant association with increasing age.
- Severely malnourished children exhibited a higher prevalence of the deficiency.
Conclusions:
- The observed prevalence significantly exceeds WHO criteria, necessitating community-wide interventions.
- Undiagnosed subclinical vitamin A deficiency in apparently healthy children can lead to severe outcomes if infections occur.
- Timely vitamin A supplementation is critical to mitigate the risk of xerophthalmia and its complications.
Abstract:
The present cross sectional study was carried out to estimate prevalence of subclinical vitamin A deficiency among undersix children by using conjunctival impression cytology in urban slums of Nagpur city in central India. The study population included 308 non-xerophthalmic undersix children selected randomly. Conjunctival impression cytology was performed by standard procedure. Out of 308 children 110 (35.7%) had subclinical vitamin A deficiency. Increasing prevalence of subclinical vitamin A deficiency was non-significantly associated with advancing age. Higher prevalence of subclinical vitamin A deficiency was observed in severely malnourished children. The prevalence of subclinical vitamin A deficiency observed in this study (35.7%) is much more than the criteria laid down by WHO, which warrants community wide intervention. This problem assumes more significance because they are apparently healthy and if timely vitamin A supplementation is not given, any intercurrent infection is likely to worsen the vitamin A status and result in known consequences of xerophthalmia.
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