Prevalence of Vitamin D Deficiency and Hypervitaminosis D Among Adult Patients Admitted to the Tertiary Care Hospitals in Turkey
Dilek Gogas Yavuz, Tugce Apaydin, Reyhan Ersoy, Yuksel Altuntas, Habip Bilen, Baris Pamuk, Sule Temizkan, Hasan Altuntas, Meral Mert, Aysen Akalin, Murat Sert, Gulcin Daglioglu, Ilgin Yildirim Simsri, Sevki Cetinkalp, Zeliha Hekimsoy, Z. Canturk, Ziynet Alphan Uc, Suleyman Iplikci, Mehmet Yasar, Mustafa Unubol, Kerem Sezer, Omercan Toplaoglu, Ibrahim Sahin, Ozlem Turhan Iyidir, Zafer Pekkolay, Alparaslan Tuzcu, Meral Mert, Oguz Dikbas, Nilufer Ozdemir Kutbay, Kamile Gul, Ferhat Deniz, Eda Ertorer, Zuleyha Karaca, Gulsah Elbuken, Dilek Arpaci, T Bayraktaroglu, Kemal Agbaht, Elif Turan, Inan Anaforoglu, Goncagul Haklar
article (Uluslararası, Hakemli) | Yazar(lar): Dilek Gogas Yavuz, Tugce Apaydin, Reyhan Ersoy, Yuksel Altuntas, Habip Bilen, Baris Pamuk, Sule Temizkan, Hasan Altuntas, Meral Mert, Aysen Akalin, Murat Sert, Gulcin Daglioglu, Ilgin Yildirim Simsri, Sevki Cetinkalp, Zeliha Hekimsoy, Z. Canturk, Ziynet Alphan Uc, Suleyman
Objective: Vitamin D deficiency is a common health problem around the world. This study aimed to evaluate the nationwide prevalence of vitamin D status in tertiary care hospitals in Turkey.
Methods: Retrospectively, the data on vitamin D levels from 33 tertiary care hospitals' clinical bio-chemistry laboratories around Turkey between January and December were collected.
Results: In total, 706 434 serum samples from adult subjects (female/male: 469 028/237 406; 66.4%/33.6%) were included. While vitamin D levels were sufficient in 20.3% (n = 14 222), they were insufficient in 21.9% (n = 154 360) and deficient in 57.8% (n = 408 882).
We observed the highest rates of deficiency in those aged between 18 and 29 years (62.9%, n = 70 235) and lowest rates between 60 and 69 years (52.3%, n = 61 121) and between 70 and 79 years (52.3%, n = 32 397). Hypervitaminosis D was detected in 5.5% of adult subjects; highest rates of hypervitaminosis D were observed in those who were over 80 years (6.6%) and 70-79 years (6.5%) and the lowest in 18-29 years (2.8%).
Discussion: In this cohort, over half of the subjects admitted to the tertiary care hospitals in Turkey had vitamin D deficiency and required vitamin D supplementation. The elderly population had the lowest prevalence of vitamin D insufficiency and the highest prevalence of hypervitaminosis D.