C反应蛋白/白蛋白比值与重症肺炎患者病情严重程度的关系及其对28 d死亡风险的预测价值  

Relationship between C-reactive protein/albumin ratio and severity in patients with severe pneumonia and its predictive value for 28-day mortality risk

作　　者：付玉茹 孙振康[1] 刘成 李东风[1] Fu Yu-Ru;Sun Zhen-Kang;Liu Cheng;Li Dong-Feng(Department of Critical Care Medicine,Fuyang People's Hospital,Fuyang,Anhui 236000,China)

机构地区：[1]阜阳市人民医院重症医学科,安徽阜阳236000

出　　处：《解放军医学杂志》2025年第3期309-317,共9页Medical Journal of Chinese People's Liberation Army

基　　金：阜阳市自筹经费科技计划项目(FK202081003)。

摘　　要：目的 探讨C反应蛋白/白蛋白比值(CAR)与重症肺炎患者病情严重程度的关系及其对28 d死亡风险的预测价值。方法 选择2020年1月-2022年1月阜阳市人民医院收治的152例重症肺炎患者作为研究对象进行回顾性分析。收集患者年龄、性别等临床资料,依据病情严重程度分为非危重症组(n=51)、危重症组(n=63)与极危重症组(n=38)。采用Pearson相关性分析CAR与病情严重程度[以急性生理学和慢性健康状况评价Ⅱ(APACHEⅡ)评分判定]的相关性,多因素logistic回归分析筛选病情严重程度的独立影响因素。依据患者治疗28 d后的存活状况分为存活组(n=107)与死亡组(n=45)。按CAR从低到高等分为五分位数组(Q_1-Q_5),采用多因素logistic回归分析探讨CAR与重症肺炎患者28 d死亡风险的相关性,并采用限制性立方样条(RCS)模型分析CAR与死亡风险的剂量-反应关系。采用受试者操作特征(ROC)曲线分析CAR及相关指标对患者死亡风险的预测价值。结果 CAR与APACHEⅡ评分呈明显正相关(r=0.716,P<0.05)。中性粒细胞/淋巴细胞比值(NLR)、血乳酸(Lac)、CAR高是重症肺炎患者病情严重程度的独立危险因素(P<0.05)。校正混杂因素后,随着CAR的升高,患者死亡风险增高(P<0.05)。对筛选的混杂因素进行亚组分析发现,在不同的APACHEⅡ评分、GCS评分、SOFA评分、白细胞计数(WBC)、中性粒细胞计数(NEU)、红细胞分布宽度(RDW)、降钙素原(PCT)、Lac间,CAR与重症肺炎患者28 d死亡风险的相关性稳定存在,且与NLR、Lac亚组间存在交互作用(P<0.05)。RCS模型显示,CAR与不同性别重症肺炎患者28 d死亡风险均不存在非线性剂量-反应关系。ROC曲线分析显示,CAR、Lac、NLR对重症肺炎患者28 d死亡风险的预测价值较好,三者联合的预测效能明显高于单一指标。结论 重症肺炎患者CAR与病情进展及预后结局之间存在密切联系,可作为评估病情严重程度的新指标,有�Objective To explore the relationship between C-reactive protein/albumin ratio(CAR)and the disease severity in patients with severe pneumonia,and its predictive value for 28-day mortality risk.Methods A retrospective analysis was conducted on 152 patients with severe pneumonia admitted to Fuyang People's Hospital from January 2020 to January 2022.They were divided into non-critical illness group(n=51),critical illness group(n=63),and extremely critical illness group(n=38)based on the disease severity.The clinical data such as age and gender of patients was collected,and Pearson correlation analysis was used to explore the correlation between CAR and the severity of illness[determined by Acute Physiology and Chronic Health EvaluationⅡ(APACHEⅡ)score].Multivariate logistic regression was employed to identify independent influencing factors of the severity of illness.According to the survival status of patients after 28 days of treatment,they were divided into survival group(n=107)and death group(n=45).CAR was categorized into quintiles(Q1-Q5),and multivariate logistic regression analysis was conducted to explore the correlation between CAR and 28-day mortality risk in severe pneumonia patients.A restricted cubic spline(RCS)model was used to analyze the dose-response relationship between CAR and mortality risk.The predictive value of CAR and related indicators for patient mortality risk was evaluated using the receiver operating characteristic curve(ROC).Results CAR was significantly positively correlated with the severity of the disease(APACHEⅡscore)(r=0.716,P<0.05).Neutrophil/lymphocyte ratio(NLR),blood lactate(Lac),and high CAR were independent risk factors for the disease severity in patients with severe pneumonia(P<0.05).After adjusting for confounding factors,the mortality risk increased with the increase of CAR(P<0.05).Subgroup analysis of the screened confounding factors revealed that the correlation between CAR and 28-day mortality risk in severe pneumonia patients remained stable across different APAC

关 键 词：C反应蛋白/白蛋白比值 重症肺炎 死亡风险 预测价值 

分 类 号：R563.1[医药卫生—呼吸系统] R821.36[医药卫生—内科学]