Vitamin D Levels and Prevalence of Vitamin D Deficiency in Turkish Women According to Regions and Age Groups

10 June 2025 : Database Analysis

Altuğ Semiz

^{ABD 1*}, Koray Özbay

^{DEF 1}, Fatih Şanlıkan

^{DE 1}, Necip Cihangir Yılanlıoğlu^{AD 1}, Resul Arısoy

^{ABCDEF 1}, Nilgün Tekkeşin

^{ABC 2}

DOI: 10.12659/MSM.948436

Med Sci Monit 2025; 31:e948436

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Table 2 Categorical variable descriptive statistics of the individuals in the study.

		n	%
Age	51–65	8825	19.8%
	36–50	16 610	37.2%
	18–35	19 157	43.0%
25-OH vitamin D (ng/ml) categorical	30 ng/ml	8868	19.9%
	20–29.9 ng/ml	9973	22.4%
	<20 ng/ml	25 751	57.7%
City	İstanbul	25 357	56.9%
	Ankara	2538	5.7%
	Antalya	11161	25.0%
	Diyarbakır	2582	5.8%
	Kayseri	2954	6.6%
Year	2011	722	1.6%
	2012	2680	6.0%
	2013	6143	13.8%
	2014	7087	15.9%
	2015	7989	17.9%
	2016	9193	20.6%
	2017	10 778	24.2%
Total		44 592	100.0%

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