• Chandra Kala Rai, Biju Shrestha, Jyotshna Sapkota, and Jay Kumar Das.
• Department of Physiology, Kathmandu Medical College, Duwakot, Bhaktapur, Nepal.
• JNMA J Nepal Med Assoc. 2019 Jul 1; 57 (218): 226-228.

IntroductionThe deficiency of vitamin D is major public health problem worldwide. It is deficiency of vitamin D level when blood serum which is below 30ng/ml. The deficiency is associated with various musculoskeletal diseases and autoimmune diseases. The early detection of deficiency plays important role to prevent those diseases. The aim of the study is to find the prevalence of vitamin D deficiency among adult population in a tertiary care hospital.MethodsThis descriptive cross-sectional study was conducted in tertiary care hospital, from 1st August 2017 to 31st December 2018 after ethical clearance from institutional review committee with registration number 02082017. Simple random sampling was done. Data was collected and entered in statistical package for social sciences. Point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data.ResultsOut of total patients, vitamin D deficiency was found among 283 (73.6%) patients at 95% of CI (68.6-78.6). Out of total female patients, 202 (52.61%) were deficient and out of total male patients, 81 (21.08%) were deficient. The mean age±SD of patients was 41.45±16.016 years.ConclusionsThe prevalence of vitamin D deficiency was high compared to previous studies. Vitamin D deficiency was found to be higher in females than males.

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