系统性炎症反应指数与美国成年人缺铁性贫血之间的关联,2003-2018:基于人口的横截面分析
1Department of Hematology, The First Hospital of China Medical University, Shenyang, China.
Medicine
|January 24, 2026
概括
较高的全身炎症反应指数 (SIRI),衡量免疫平衡,与美国成年人缺铁性贫血 (IDA) 的几率增加有关. 这种关联是非线性的,观察到的值效应约为SIRI 0.6.6.
科学领域:
- 血液学 血液学 血液学
- 免疫学 免疫学 免疫学
- 营养科学 营养科学
背景情况:
- 系统性炎症会影响铁的平衡,可能导致功能性铁缺乏症.
- 系统性炎症反应指数 (SIRI),从中性粒细胞,单细胞和淋巴细胞计数计算出来,反映了免疫通路平衡.
- 包括非线性在内的SIRI和缺铁性贫血 (IDA) 之间的人口级别关系尚不清楚.
研究的目的:
- 调查SIRI与美国成年人普遍存在的IDA之间的关联.
- 探索SIRI和IDA之间的潜在非线性关系.
- 为此分析,利用国家健康和营养检查调查 (NHANES) 的数据.
主要方法:
- 从NHANES (2003-2010,2015-2018) 中对11,047名美国成年人的横截面分析.
- SIRI计算为 (中性粒细胞 × 单细胞) / 淋巴细胞;分析为 lnSIRI 和 tertiles.
- 调查加权后勤回归和限制立方线用于评估关联和非线性.
主要成果:
- lnSIRI与IDA正相关 (OR:1.38;95%CI:1.11-1.72). lnSIRI与IDA正相关 (OR:1.38;95%CI:1.11-1.72). lnSIRI与IDA正相关 (OR:1.38;95%CI:1.11-1.72). lnSIRI与IDA正相关 (OR:1.38;95%CI:1.11-1.72). lnSIRI与IDA正相关. lnSIRI与IDA正相关 (OR:1.38;95%CI:1.11-1.72). lnSIRI与IDA正相关.
- 与最低的三位数相比,最高的SIRI三位数显示出IDA的几率明显更高 (OR:1.55;95%CI:1.22-1.97).
- 确定了一个非线性暴露-反应曲线,值约为SIRI ≈0.60,表明在此水平以上的IDA风险增加.
结论:
- 在全国代表性的美国成年人样本中,较高的SIRI与普遍的IDA独立相关.
- SIRI和IDA之间的关联是非线性的,具有潜在的值效应.
- SIRI可以作为一种可访问的生物标志物,用于识别患有炎症相关铁缺乏症风险的个体.
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