Nwosu Benjamin Udoka, Maranda Louise, Berry Rosalie, Colocino Barbara, Flores Carlos D, Folkman Kerry, Groblewski Thomas, Ruze Patricia
Division of Endocrinology, Department of Pediatrics, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.
Department of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, Massachusetts, United States of America.
PLoS One. 2014 Mar 5;9(3):e90623. doi: 10.1371/journal.pone.0090623. eCollection 2014.
There is no comprehensive, systematic analysis of the vitamin D status of prisoners in the scientific literature.
To investigate the vitamin D status and its determinants in US prison inmates.
Given the uniformity of dietary intake amongst inmates, vitamin D status will be determined by non-dietary factors such as skin pigmentation, security level-, and the duration of incarceration.
A retrospective study of 526 inmates (males, n=502, age 48.6 ± 12.5 years; females, n=24, age 44.1 ± 12.2) in Massachusetts prisons. Vitamin D sufficiency, insufficiency, and deficiency were respectively defined as a 25(OH)D concentration 75 nmol/L; 50 to 75 nmol/L; and <50 nmol/L. The Massachusetts Department of Correction Statement of Nutritional Adequacy stated that each inmate received the recommended daily allowance of vitamin D daily. Security level of incarceration was designated as minimum, medium, and maximum. Racial groups were categorized as Black, white, Asian, and Others.
Serum 25(OH)D levels peaked in summer and autumn, and decreased in winter and spring. Vitamin D deficiency occurred in 50.5% of blacks, 29.3% of whites, and 14.3% of Asian inmates (p=0.007). Black inmates had significantly lower serum 25(OH)D level than white inmates at the maximum security level (p=0.015), medium security level (p=0.001), but not at the minimum security level (p=0.40). After adjusting for covariates black inmates at a maximum security level had a four-fold higher risk for vitamin D deficiency than white inmates at the same security level (OR 3.9 [95% CI 1.3-11.7].
The vitamin D status of prison inmates is determined by skin pigmentation, seasons, and the security level of incarceration.
科学文献中没有对囚犯维生素D状况进行全面、系统的分析。
调查美国监狱囚犯的维生素D状况及其决定因素。
鉴于囚犯饮食摄入的一致性,维生素D状况将由皮肤色素沉着、安全级别和监禁时长等非饮食因素决定。
对马萨诸塞州监狱的526名囚犯(男性,n = 502,年龄48.6±12.5岁;女性,n = 24,年龄44.1±12.2岁)进行回顾性研究。维生素D充足、不足和缺乏分别定义为25(OH)D浓度≥75 nmol/L;50至75 nmol/L;以及<50 nmol/L。马萨诸塞州惩教部营养充足声明称,每名囚犯每天都获得了推荐的维生素D每日摄入量。监禁安全级别分为最低、中等和最高。种族群体分为黑人、白人、亚洲人和其他种族。
血清25(OH)D水平在夏季和秋季达到峰值,在冬季和春季下降。50.5%的黑人、29.3%的白人和14.3%的亚洲囚犯存在维生素D缺乏(p = 0.007)。在最高安全级别(p = 0.015)、中等安全级别(p = 0.001)时,黑人囚犯的血清25(OH)D水平显著低于白人囚犯,但在最低安全级别时无显著差异(p = 0.40)。在调整协变量后,最高安全级别的黑人囚犯维生素D缺乏风险比相同安全级别的白人囚犯高四倍(OR 3.9 [95% CI 1.3 - 11.7])。
监狱囚犯的维生素D状况由皮肤色素沉着、季节和监禁安全级别决定。