{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,21]],"date-time":"2026-05-21T19:43:31Z","timestamp":1779392611851,"version":"3.53.1"},"reference-count":50,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2020,9,5]],"date-time":"2020-09-05T00:00:00Z","timestamp":1599264000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006578","name":"Chi Mei Medical Center","doi-asserted-by":"publisher","award":["CMFJ10406"],"award-info":[{"award-number":["CMFJ10406"]}],"id":[{"id":"10.13039\/501100006578","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Nutrients"],"abstract":"<jats:p>This study aimed at determining the prevalence and predictors of hypovitaminosis D (serum 25-hydroxyvitamin D &lt; 30 ng\/mL) among office workers in a subtropical region from an electronic hospital database. Totally, 2880 office workers aged 26\u201365 years who received health examinations with vitamin D status and total calcium concentrations at a tertiary referral center were retrospectively reviewed. Subjects were divided into groups according to genders, age (i.e., 26\u201335, 36\u201345, 46\u201355, 56\u201365), body-mass index (BMI) (i.e., obese BMI \u2265 30, overweight 25 \u2264 BMI &lt; 30, normal 20 \u2264 BMI &lt; 25, and underweight BMI &lt; 20) and seasons (spring\/winter vs. summer\/autumn) for identifying the predictors of hypovitaminosis D. Corrected total calcium level &lt;8.4 mg\/dL is considered as hypocalcemia. Multivariate logistic regression demonstrated that females (AOR 2.33, (95% CI: 1.75, 3.09)), younger age (4.32 (2.98, 6.24), 2.82 (1.93, 4.12), 1.50 (1.03, 2.17)), and season (winter\/spring) (1.55 (1.08, 2.22)) were predictors of hypovitaminosis D, whereas BMI was not in this study. Despite higher incidence of hypocalcemia in office workers with hypovitaminosis D (p &lt; 0.001), there was no association between vitamin D status and corrected total calcium levels. A high prevalence (61.9%) of hypovitaminosis D among office workers in a subtropical region was found, highlighting the importance of this occupational health issue.<\/jats:p>","DOI":"10.3390\/nu12092719","type":"journal-article","created":{"date-parts":[[2020,9,6]],"date-time":"2020-09-06T23:12:49Z","timestamp":1599433969000},"page":"2719","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Age, Gender and Season Are Good Predictors of Vitamin D Status Independent of Body Mass Index in Office Workers in a Subtropical Region"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8640-8231","authenticated-orcid":false,"given":"Li-Kai","family":"Wang","sequence":"first","affiliation":[{"name":"Department of Anesthesiology, Chi Mei Medical Center, Tainan 71004, Taiwan"},{"name":"Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4507-8085","authenticated-orcid":false,"given":"Kuo-Chuan","family":"Hung","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Chi Mei Medical Center, Tainan 71004, Taiwan"},{"name":"Department of Health and Nutrition, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yao-Tsung","family":"Lin","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Chi Mei Medical Center, Tainan 71004, Taiwan"},{"name":"Center of General Education, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ying-Jen","family":"Chang","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Chi Mei Medical Center, Tainan 71004, Taiwan"},{"name":"College of Health Sciences, Chang Jung Christian University, Tainan 71101, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6376-9085","authenticated-orcid":false,"given":"Zhi-Fu","family":"Wu","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Chi Mei Medical Center, Tainan 71004, Taiwan"},{"name":"Department of Anesthesiology, Tri-Service General Hospital and National Defense Medical Center, Taipei 11490, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5925-8477","authenticated-orcid":false,"given":"Chung-Han","family":"Ho","sequence":"additional","affiliation":[{"name":"Department of Medical Research, Chi Mei Medical Center, Tainan 71004, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2313-5701","authenticated-orcid":false,"given":"Jen-Yin","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology, Chi Mei Medical Center, Tainan 71004, Taiwan"},{"name":"Department of the Senior Citizen Service Management, Chia Nan University of Pharmacy and Science, Tainan 71710, Taiwan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2020,9,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"217","DOI":"10.1007\/s12016-013-8361-3","article-title":"The implication of vitamin D and autoimmunity: A comprehensive review","volume":"45","author":"Yang","year":"2013","journal-title":"Clin. 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