Vitamin D Deficiency in Adults in Isfahan, Iran
Author Information
Author(s): Hovsepian Silva, Amini Massoud, Aminorroaya Ashraf, Amini Peyvand, Iraj Bijan
Primary Institution: Isfahan Endocrine and Metabolism Research Center, Isfahan University of Medical Sciences
Hypothesis
What is the prevalence of vitamin D deficiency among the adult population of Isfahan, Iran?
Conclusion
The study found a high prevalence of vitamin D deficiency among adults in Isfahan, particularly among women and younger individuals.
Supporting Evidence
- The prevalence of mild vitamin D deficiency was 19.6%.
- The prevalence of moderate vitamin D deficiency was 23.9%.
- The prevalence of severe vitamin D deficiency was 26.9%.
- Vitamin D deficiency was more prevalent among women (p=0.001).
- The prevalence of severe vitamin D deficiency was higher in autumn-winter than in spring-summer (p=0.001).
Takeaway
Many adults in Isfahan, Iran, don't get enough vitamin D, especially women and younger people, even though it's a sunny place.
Methodology
A cross-sectional study measuring serum vitamin D levels in 1,111 healthy adults attending an outpatient clinic.
Potential Biases
Potential bias due to selection of participants from a single outpatient clinic.
Limitations
The study did not measure dietary vitamin D intake or duration of sun exposure.
Participant Demographics
1,111 healthy adults, 243 men and 868 women, aged 20-80 years.
Statistical Information
P-Value
p=0.001
Confidence Interval
95% confidence interval 1.2-2.2
Statistical Significance
p<0.001
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