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身体质量指数与细菌性败血症的住院死亡率之间的关系
Shalom Lebovitz1,2, Guy Rozen3,4, Zahi Abu Ghosh1,2
1Department of Cardiology, Hadassah Medical Center, Jerusalem 9112001, Israel.
Journal of clinical medicine
|June 10, 2023
概括
低体重和正常体重的细菌性败血症患者的死亡率更高,住院时间更长. 身体质量指数 (BMI) 和败血症结果之间的反向J形关系表明存在肥胖悖论.
科学领域:
- 关键护理医学 关键护理医学
- 流行病学 流行病学
- 肥胖问题研究研究
背景情况:
- 体质指数 (BMI) 与败血症患者的临床结果之间的关系仍然存在争议.
- 调查BMI对住院过程和细菌性败血症死亡率的影响对于患者管理至关重要.
研究的目的:
- 检查身体质量指数 (BMI) 与临床结果 (包括死亡率和停留时间) 之间的关联,在患有细菌性败血症的住院患者中.
- 利用现实世界的数据来理解BMI类别和败血症预后之间的复杂关系.
主要方法:
- 来自国家住院样本 (NIS) 数据库 (2015年10月 - 2016年12月) 的90,760例因细菌性败血症住院病人的回顾性分析.
- 患者被分为六个BMI (kg/m2) 亚组:≤19 (体重不足),20-25 (正常),26-30 (超重),31-35 (肥胖I),36-39 (肥胖II) 和≥40 (肥胖III).
- 采用多变量逻辑和线性回归模型,分别确定住院死亡率和延长住院时间 (LOS) 的预测因素.
主要成果:
- 在BMI和临床结果之间观察到一个反向的J形关系.
- 体重不足 (BMI ≤19 kg/m2) 和体重正常 (BMI 20-25 kg/m2) 的患者与超重和肥胖群体相比,死亡率显著更高,损失时间更长.
- 较高的BMI的保护作用在最肥胖的群体 (BMI ≥40 kg/m2) 中减弱,这与体重不足组一起,独立预测死亡率.
结论:
- 该研究证实,在细菌性败血症患者中,BMI和死亡率之间存在反向J形关联.
- 研究结果支持毒症存在"肥胖悖论",即更高的BMI可能与更好的结果有关,尽管这种影响在极端肥胖水平下会减弱.
- ≤19 kg/m2和≥40 kg/m2的BMI类别被确定为这个现实世界败血症队列中死亡率的独立预测因素.
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