Observational studyPublic health nutrition2020
Vitamin D status of children in Kerala, southern India.
Observational study in Public health nutrition, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 16 citations in OpenAlex.
- Contemporary factors affecting serum 25-hydroxyvitamin D concentrations in Chinese children aged 2-6 years.Public health nutrition · 2025Article
- The prevalence of vitamin D deficiency and its association to modifiable risk factors of cardiovascular disease among apparently healthy adults in Central Kerala.Journal of family medicine and primary care · 2025Article
- Association between depression and vitamin D3 among the people attending private clinic in Ernakulam, Kerala, India.Journal of family medicine and primary care · 2025Article
- Vitamin D Status in Children on Anticonvulsant Therapy.Indian journal of pediatrics · 2022Article
- Cardio-Protective Properties and Health Benefits of Fish Lipid Bioactives; The Effects of Thermal Processing.Marine drugs · 2022Review
- Vitamin D Status of School-Age Children in North India.Indian journal of pediatrics · 2022Article
- Hypovitaminosis D and Parathyroid Hormone Response in Critically Ill Children with Sepsis: A Case-control Study.Indian journal of critical care medicine : peer-reviewed, official publication of Indian Society of Critical Care Medicine · 2021Article
- Vitamin D status of children in Kerala: do they have sufficient levels?Public health nutrition · 2020Article
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Authors and funding
3 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo study plasma 25-hydroxyvitamin D (25(OH)D) status of children in Kerala, southern India, and its relationship with sociodemographic variables.
designCross-sectional observational study.
settingTertiary government hospital.
participantsChildren (n 296) with trivial acute illness were enrolled. Sun exposure and Ca and vitamin D intakes (7 d dietary recall) were documented. Serum Ca, P, alkaline phosphatase, plasma 25(OH)D and parathyroid hormone (PTH) were measured.
resultsPrevalence of vitamin D deficiency (plasma 25(OH)D <30 nmol/l) was 11·1% (median, interquartile range (IQR): 52·6, 38·4-65·6 nmol/l). Children who ate fish daily had significantly higher plasma 25(OH)D than those who did not (median, IQR: 52·5, 40·8-68·9 v. 49·1, 36·2-60·7 nmol/l; P = 0·02). Those investigated in the months of March-May showed highest 25(OH)D v. those enrolled during other times (median, IQR: 58·7, 45·6-81·4 v. 45·5, 35·6-57·4 nmol/l; P <0·001). Plasma 25(OH)D correlated positively with serum P (r = 0·24, P <0·001) and Ca intake (r = 0·16, P 0·03), negatively with age (r = -0·13, P 0·03) and PTH (r = -0·22, P <0·001.). On linear regression, summer season (March-May), lower age, daily fish intake and higher Ca intake were independently associated with plasma 25(OH)D.
conclusionsPrevalence of vitamin D deficiency is low in Kerala. The natural fish diet of coastal Kerala and the latitude may be protective. Public health policy in India should take account of this geographical diversity.
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