ArticlePublic health nutrition2013
Vitamin D deficiency is a problem for adult out-patients? A university hospital sample in Istanbul, Turkey.
Article in Public health nutrition, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 46 citations in OpenAlex.
- How deficient are we? A retrospective analysis of vitamin D status in 85,892 Turkish adults.BMC public health · 2026Observational
- Vitamin D Levels and Prevalence of Vitamin D Deficiency in Turkish Women According to Regions and Age Groups.Medical science monitor : international medical journal of experimental and clinical research · 2025Article
- Serum vitamin D le Serum vitamin D levels are associated with acute post e associated with acute postoperative pain and opioid analgesic consumption after laparoscopic cholecystect cholecystectomy: a str omy: a strobe compliant pr obe compliant prospectiv ospective obser e observational ational study.Turkish journal of medical sciences · 2023Observational
- Association between serum vitamin D status and the anti-seizure treatment in Chinese children with epilepsy.Frontiers in nutrition · 2022Article
- Vitamin D Deficiency Is a Potential Risk for Blood Pressure Elevation and the Development of Hypertension.Medicina (Kaunas, Lithuania) · 2021Article
- Risk of hypercalcemia in patients with very high serum 25-OH vitamin D levels.International journal of clinical practice · 2021Article
- Vitamin D Deficiency and Radiological Findings in Adult Non-Cystic Fibrosis Bronchiectasis.Turkish thoracic journal · 2020Article
- The evaluation of vitamin D levels in patients with carpal tunnel syndrome.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2016Article
- Vitamin D deficiency is related to thyroid antibodies in autoimmune thyroiditis.Central-European journal of immunology · 2014Article
- The impact of Vitamin D Replacement on Glucose Metabolism.Pakistan journal of medical sciences · 2013Article
- RISK OF HYPERCALCEMIA IN ELDERLY PATIENTS WITH HYPERVITAMINOSIS D AND INTOXICATION.Acta endocrinologica (Bucharest, Romania : 2005)Article
- VITAMIN DEFICIENCY AND INSULIN RESISTANCE IN NONDIABETIC OBESE PATIENTS.Acta endocrinologica (Bucharest, Romania : 2005)Article
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
objectiveTo investigate the frequency of vitamin D deficiency in relation to demographics, clinical diagnosis, season of measurement and laboratory parameters in adult out-patients.
designDescriptive, retrospective study concerning evaluation of the initial 25-hydroxyvitamin D (25(OH)D) levels determined at admission in relation to demographics, clinical diagnosis, season of measurement and laboratory parameters. 25(OH)D levels ,20 ng/ml were classified as deficiency, 20–30 ng/ml as insufficiency and .30 ng/ml as sufficiency.
settingOut-patient clinics at a tertiary care centre. SUBJECTS: A total of 2488 adult patients (mean age: 53?3 (SD 15?2) years; 85?2% were females) admitted to out-patient clinics at Baskent University Istanbul Hospital were included.
resultsMean level of 25(OH)D in the overall population was 17?4 (SD 11?5) ng/ml while insufficiency and deficiency were evident in 24% and 66% of patients, respectively. Mean 25(OH)D levels in males .45 years old were higher than in their female counterparts (19?4 (SD 11?3) ng/ml v. 17?8 (SD 12?2) ng/ml; P,0?05). Mean 25(OH)D levels obtained in summer (18?6 (SD 11?1) ng/ml) and autumn (23?3 (SD 13?6) ng/ml) were significantly higher than levels in spring (16?1 (SD 10?3) ng/ml) and winter (14?6 (SD 10?2) ng/ml; P,0?01). Mean 25(OH)D levels were determined to be significantly lower in obese patients compared with non-obese patients (15?6 (SD 10?4) ng/ml v. 17?6 (SD 11?6) ng/ml; P,0?05). Levels of 25(OH)D were significantly negatively correlated with serum parathyroid hormone levels (r520?194; P,0?001) while significantly positively correlated with phosphorus (r50?059; P,0?01) and HDL cholesterol (r50?070; P,0?01) levels.
conclusionsOur findings indicate that vitamin D deficiency is very common among out-patients in Turkey, regardless of gender and age, especially among obese people and during winter and spring.
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