Risk factors for occult pneumonia in children with primary nephrotic syndrome / 中华实用儿科临床杂志

ABSTRACT

Objective To investigate the risk factors for occult pneumonia(OP) in children with primary nephrotic syndrome(PNS).Methods The clinical data of 115 children with PNS and findings of chest CT from July 2010 to June 2016 at the First Affiliated Hospital of Zhengzhou University were retrospectively analyzed.Based on the findings of chest CT,the subjects were divided into 2 groupsOP group and unoccult pneumonia (UOP) group.The comparisons were made between 2 groups,including gender,age,season,course of disease before admitting to hospital,formation of ascites,white blood cells,C-reactive protein,erythrocyte sedimentation rate,total protein (TP),albumin (ALB),total cholesterol,immunoglobulin G (IgG),immunoglobulin E,urine N-acetyl-beta-D-glucosaminidase (NAG) and 24 h urinary protein quantity/body weight.The single factor analysis was performed to analyze above indicators between 2 groups,and the indicators which had statistical significance were analyzed by single factor analysis were analyzed by the multifactor Logistic regression.The receiver operator characteristic (ROC) curve was drawn to evaluate the predicting ability of the indicators for PNS combined with OP.Results Among 1 15 cases,68 (59.1％) PNS patients were complicated with OP.The result of single factor analysis indicated that the risk factors were the formation of ascites,TP,ALB,IgG and NAG (all P ＜0.05).The multifactor Logistic regression showed that ascites,TP and ALB were the risk factors for OP in children with PNS(P =0.003,0.004,0.003).The area under curve (AUC) of ALB was 0.709,and the critical value was 18.55 g/L(P =0.000);the AUC of TP was 0.658,and the critical value was 39.15 g/L(P =0.004).Conclusion The incidence rate of PNS combined with OP was high.With the presence of formation of ascites,TP ＜39.15 g/L and ALB ＜ 18.55 g/L,it may indicate OP for the PNS children which require special consideration clinically and earlier chest CT examination.