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- Title
Influencing factors on serum 25-hydroxyvitamin D<sub>3</sub> levels in Japanese chronic hepatitis C patients.
- Authors
Atsukawa, Masanori; Tsubota, Akihito; Shimada, Noritomo; Yoshizawa, Kai; Abe, Hiroshi; Asano, Toru; Ohkubo, Yusuke; Araki, Masahiro; Ikegami, Tadashi; Kondo, Chisa; Itokawa, Norio; Nakagawa, Ai; Arai, Taeang; Matsushita, Yoko; Nakatsuka, Katsuhisa; Furihata, Tomomi; Chuganji, Yoshimichi; Matsuzaki, Yasushi; Aizawa, Yoshio; Iwakiri, Katsuhiko
- Abstract
Background: Serum 25-hydroxyvitamin D3 levels are generally lower in chronic hepatitis C patients than in healthy individuals. The purpose of this study is to clarify the factors which affect serum 25-hydroxyvitamin D3 levels using data obtained from Japanese chronic hepatitis C patients. Methods: The subjects were 619 chronic hepatitis C patients. Serum 25-hydroxyvitamin D3 levels were measured by using double-antibody radioimmunoassay between April 2009 and August 2014. Serum 25-hydroxyvitamin D3 levels of 20 ng/mL or less were classified as vitamin D deficiency, and those with serum 25-hydroxyvitamin D3 levels of 30 ng/mL or more as vitamin D sufficiency. The relationship between patient-related factors and serum 25-hydroxyvitamin D3 levels was analyzed. Results: The cohort consisted of 305 females and 314 males, aged between 18 and 89 years (median, 63 years). The median serum 25-hydroxyvitamin D3 level was 21 ng/mL (range, 6-61 ng/mL). On the other hand, the median serum 25-hydroxyvitamin D3 level in the healthy subjects was 25 ng/mL (range, 7-52), being significantly higher than that those in 80 chronic hepatitis C patients matched for age, gender, and season (p = 1.16 × 10-8). In multivariate analysis, independent contributors to serum 25-hydroxyvitamin D3 deficiency were as follows: female gender (p = 2.03 × 10-4, odds ratio = 2.290, 95 % confidence interval = 1.479-3.545), older age (p = 4.30 × 10-4, odds ratio = 1.038, 95 % confidence interval = 1.017-1.060), cold season (p = 0.015, odds ratio = 1.586, 95 % confidence interval = 1.095-2.297), and low hemoglobin level (p = 0.037, odds ratio = 1.165, 95 % confidence interval = 1.009-1.345). By contrast, independent contributors to serum 25-hydroxyvitamin D3 sufficiency were male gender (p = 0.001, odds ratio = 3.400, 95 % confidence interval = 1.635-7.069), warm season (p = 0.014, odds ratio = 1.765, 95 % confidence interval = 1.117-2.789) and serum albumin (p = 0.016, OR = 2.247, 95 % CI = 1.163-4.342). Conclusions: Serum 25-hydroxyvitamin D3 levels in chronic hepatitis C Japanese patients were influenced by gender, age, hemoglobin level, albumin and the season of measurement.
- Subjects
SERUM; VITAMIN D; HEPATITIS C; PATIENT acceptance of health care; DEFICIENCY diseases; PATIENTS
- Publication
BMC Infectious Diseases, 2015, Vol 15, Issue 1, p1
- ISSN
1471-2334
- Publication type
Article
- DOI
10.1186/s12879-015-1020-y