Analysis of serum 25-hydroxyvitamin D levels and related factors in a population of 4 311 physical examinations in a tertiary hospital in Hefei
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摘要:
目的 利用安徽医科大学第一附属医院体检中心数据研究血清25-羟维生素D[25(OH)D]浓度与季节、性别、年龄等因素的关系,为临床合理补充维生素D提供参考。 方法 选取2017年4月—2022年6月(缺少2020年4、5、6三个月数据)4 311例(>20岁)体检者信息。采用Spearman相关系数进行每月平均血清25(OH)D浓度与每月的平均气温,日照时长,紫外线强度大小的相关性分析,计算25(OH)D充足[25(OH)D≥75 nmol/L]、25(OH)D不足[50 nmol/L≤25(OH)D<75 nmol/L]、25(OH)D缺乏[25(OH)D<50 nmol/L]的检出率。 结果 体检者血清25(OH)D的平均水平为59.7 nmol/L,整体25(OH)D充足率为22.5%,不足率为38.6%,缺乏率为38.9%;女性体内血清25(OH)D中位数浓度低于男性;血清25(OH)D浓度在5年间呈季节性变化,差异有统计学意义(P<0.05)。冬春季节人群体内25(OH)D中位数浓度比夏秋季节低;超过60岁人群体内平均25(OH)D的浓度、充足率均高于其他2个年龄段。 结论 体检人群血清25(OH)D浓度与季节变化、性别、年龄等因素有关。应根据不同季节和年龄段补充维生素D,预防骨质疏松、病理性骨折等疾病的发生。 Abstract:Objective To study the relationship between serum 25-hydroxyvitamin D [25(OH)D] concentration and season, gender and age using data from the physical examination centre of the First Affiliated Hospital of Anhui Medical University, and to provide a reference for rational clinical vitamin D supplementation. Methods Data of 4 311 subjects (> 20 years old) who underwent physical examination from April 2017 to June 2022 (The data of April, May, June 2020 were missing) were selected. Spearman ' s rank correlation coefficient was used to analyze the correlation between monthly average serum 25(OH)D concentration and monthly average temperature, sunshine duration and UV intensity. The detection rates of 25(OH)D sufficiency [25(OH)D ≥75 nmol/L], 25(OH)D insufficiency [50 nmol/L ≤ 25(OH)D < 75 nmol/L] and 25(OH)D deficiency [25(OH)D < 50 nmol/L] were calculated. Results The mean serum 25(OH)D level was 59.7 nmol/L and the overall 25(OH)D sufficiency rate was 22.5%, insufficiency rate was 38.6% and deficiency rate was 38.9%. The median serum 25(OH)D concentration in women was lower than that in men. The serum 25(OH)D concentration showed a seasonal variation over the 5-year period and the difference was statistically significant (P < 0.05). Median 25(OH)D concentrations were lower in winter and spring than that in summer and autumn; mean 25(OH)D concentrations and sufficiency rates were higher in people over 60 years of age than in the other two age groups. Conclusions Serum 25(OH)D concentrations in the physical examination population are statistically significant in relation to seasonal changes, gender and age. Vitamin D should be supplemented according to different seasons and age groups to prevent osteoporosis, pathological fractures and other diseases. -
表 1 不同性别体检人群血清维生素D浓度及含量比较
Table 1. Comparison of serum vitamin D concentrations and content in different sex physical examination population
性别 例数 25(OH)D [M(P25, P75),nmol/L] 25(OH)D含量[例(%)] 充足 不足 缺乏 男性 2 997 59.3(45.2, 75.8) 780(26.1) 1 209(40.3) 1 008(33.6) 女性 1 314 49.6(38.4, 64.9) 190(14.5) 455(34.6) 669(50.9) 统计量 -12.041a 132.154b P值 <0.001 <0.001 注:a为Z值,b为χ2值。 表 2 不同年龄组体检人群血清维生素D浓度及含量比较
Table 2. Comparison of serum vitamin D concentrations and content in different age groups
年龄 例数 25(OH)D [M(P25, P75),nmol/L] 25(OH)D含量[例(%)] 充足 不足 缺乏 21~40岁 1 321 52.7(40.4, 70.7) 263(19.9) 476(36.0) 582(44.1) 41~60岁 2 410 56.6(43.1, 72.1)a 512(21.2) 971(40.3) 927(38.5) >60岁 580 63.7(46.8, 80.5)ab 195(33.6) 217(37.4) 168(29.0) 统计量 56.194c 65.623d P值 <0.001 <0.001 注:与21~40岁年龄组比较,aP<0.05;与41~60岁年龄组比较,bP<0.05。c为H值,d为χ2值。 表 3 各年龄组体检人群不同性别血清维生素D含量比较[例(%)]
Table 3. Comparison of serum vitamin D content in different sexes among all age groups[cases(%)]
组别 例数 VitD充足 VitD不足 VitD缺乏 χ2值 P值 21~40岁 87.664 <0.001 男性 867 214(24.7) 349(40.2) 304(35.1) 女性 454 49(10.8) 127(28.0) 278(61.2) 41~60岁 45.471 <0.001 男性 1 758 421(23.9) 724(41.2) 613(34.9) 女性 652 91(14.0) 247(37.9) 314(48.1) >60岁 16.321 <0.001 男性 372 145(39.0) 136(36.5) 91(24.5) 女性 208 50(24.0) 81(39.0) 77(37.0) 表 4 不同季节体检人群血清维生素D浓度及含量比较
Table 4. Comparison of serum vitamin D concentration and content in different seasons
季节 例数 25(OH)D [M(P25, P75),nmol/L] 25(OH)D含量[例(%)] 充足 不足 缺乏 春季 1 042 50.1(38.4, 64.9) 121(11.6) 400(38.4) 521(50.0) 夏季 1 030 70.0(53.4, 87.4)a 443(43.0) 365(35.4) 222(21.6) 秋季 1 821 55.5(44.3, 70.2)ab 349(19.2) 779(42.8) 693(38.0) 冬季 418 46.5(34.6, 61.5)abc 57(13.6) 120(28.7) 241(57.7) 统计量 431.850d 443.375e P值 <0.001 <0.001 注:与春季比较, aP<0.05;与夏季比较, bP<0.05;与秋季比较,cP<0.05。d为H值,e为χ2值。 -
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