Can, Fatma Ezgi2023-01-092023-01-092020-11-02Göktaş, O. vd. (2020). "Vitamin D status in the adult population of Bursa-Turkey". European Journal of General Practice, 26(1), 156-162.1381-47881751-1402https://doi.org/10.1080/13814788.2020.1846712https://www.tandfonline.com/doi/full/10.1080/13814788.2020.1846712http://hdl.handle.net/11452/30333Background Vitamin D, along with parathyroid hormone (PTH) and calcitonin, is an important hormone that affects bone and calcium metabolism. Objectives To evaluate the vitamin D status and its seasonal variation in the adult population of Bursa. Methods Since there is not enough information about vitamin D levels, 25 OH vitamin D levels were analysed retrospectively from the records of 11,734 adult subjects (9142 women, 2592 men) admitted to 24 family health centres located in different districts of Bursa between 1 December 2017 and 30 November 2018. Some tests that can affect vitamin D levels, demographic features, and accompanying comorbidities were also evaluated. A face-to-face questionnaire was administered to subjects who were willing to answer (n = 2965). Results The mean serum vitamin D level was 16.6 +/- 11.5 ng/mL in the entire population, 15.8 +/- 11.7 ng/mL in women and 19.5 +/- 9.9 ng/mL in men. The percentage of subjects with a vitamin D level <20 ng/mL was highest in March-May and lowest in the September-November period (80.7% and 69.9% for women, 77.5% and 32.9% for men, respectively). Conclusion Vitamin D levels <20 ng/mL are more prominent in women, and decline in spring, in the adult population of Bursa. These results are meaningful for the population living in Bursa, Turkey and the northern European region.eninfo:eu-repo/semantics/openAccessGeneral practiceFamily medicineVitamin DSeasonal variationGenderD deficiencySeasonal-variationHypovitaminosis-DBone metabolismLife-stylePrevalenceAgeGeneral & internal medicineAdultFemaleHealth statusHumansMaleMedical recordsMiddle agedRetrospective studiesTurkeyVitamin D deficiencyArticle0005979814000012-s2.0-8509736884915616226133292015Primary health careMedicine, general & internal25-Hydroxyvitamin D; Vitamin D Deficiency; Ergocalciferols25 hydroxyvitamin DAlanine aminotransferaseAspartate aminotransferaseC reactive proteinCholesterolCreatinineGlucoseHigh density lipoprotein cholesterolInsulinLipidLow density lipoprotein cholesterolPhosphorusTriacylglycerolVitamin DAdultAlanine aminotransferase blood levelArticleAspartate aminotransferase blood levelAutumnChemiluminescence immunoassayCholesterol blood levelClinical practiceComorbidityComparative studyControlled studyCeatinine blood levelDemographyElectrochemiluminescence;Family healthFemaleGlucose blood levelHumanInsulin blood levelKidney function testMajor clinical studyMalePhosphate blood levelQuestionnaireRetrospective studyRural areaSeasonal variationSex differenceSpringSummerTriacylglycerol blood levelTurkey (republic)Urban areaVitamin blood levelWinterHealth statusMedical recordMiddle agedTurkey (bird)Vitamin D deficiency