Vitamin D status in medical students and risk factor analysis

Vitamin D status in medical students

  • Vidya Sunil Joshi Vydehi Institute of Medical Sciences
  • Rahul Mandal Vydehi Institute of Medical Sciences
Keywords: Hypovitaminosis, Immunoassay, Vitamin D


Vitamin D is finding increasing health implications beyond calcium homeostasis. Vitamin D deficiency is prevalent globally including India. Many asymptomatic individuals have hypovitaminosis implicating the need for intervention. The present study aimed at evaluating vitamin D levels among healthy medical students from southern India and its association with well-known risk factors. Hundred apparently healthy medical students between the age group of 18-25 years were recruited based on defined inclusion and exclusion criteria. A questionnaire form with details of sun exposure, tanning, milk intake, general health and drug history were obtained. Vitamin D levels were assessed by chemiluminescent immunoassay (CLIA). Vitamin D values were considered normal for 30-60 ng/ml, deficient for <20 ng/ml and insufficient for levels between 21-29 ng/ml. Majority of the students (89%) had deficient 25-hydroxyvitamin D levels while 8% of the student had insufficient and 3% of the students had sufficient 25-hydroxyvitamin D levels. The mean 25-hydroxyvitamin D level was 14.01±6.20 ng/ml, median level was 12.95 ng/ml and ranged between 5.15 to 43.01 ng/ml. No statistically significant association was noted with sex, BMI, sun exposure, dietary intake or serum calcium levels. To conclude, vitamin D deficiency is highly prevalent in asymptomatic medical students and showed lack of relationship with the well-defined risk factors in literature prompting to look for newer risk factors in this country.


Download data is not yet available.

Author Biographies

Vidya Sunil Joshi, Vydehi Institute of Medical Sciences

Associate Professor, Department of Physiology

Rahul Mandal, Vydehi Institute of Medical Sciences

Postgraduate student, Department of Physiology

Figure 1
How to Cite
Joshi V, Mandal R. Vitamin D status in medical students and risk factor analysis. Annals of Medical Physiology [Internet]. 31Mar.2018 [cited 22Apr.2018];2(1):11-6. Available from:
Original Research Articles