Clinical characteristics for patients who did not develop AKI and those with and without AKI progression.

COPD, chronic obstructive pulmonary disease; SCr, plasma creatinine; eGFR, estimated glomerular filtration rate; IABP, intra-aortic balloon pump; CABG, coronary artery bypass grafting; CPB, cardiopulmonary bypass. Continuous variables were expressed as means ±SD. aAKI progression defined by worsening of AKIN stage from original diagnosis of AKI. bEstimate eGFR by the Chinese MDRD equation. cProteinuria by dipstick urinalysis, mild (trace or 1+) and heavy (≥2+).本数据集涉及的缩写术语如下：慢性阻塞性肺疾病（COPD，chronic obstructive pulmonary disease）、血浆肌酐（SCr，plasma creatinine）、估算肾小球滤过率（eGFR，estimated glomerular filtration rate）、主动脉内球囊反搏（IABP，intra-aortic balloon pump）、冠状动脉旁路移植术（CABG，coronary artery bypass grafting）、体外循环（CPB，cardiopulmonary bypass）。 连续型变量以均值±标准差（SD）表示。 a：AKI进展定义为患者初始诊断为急性肾损伤（AKI）后，其AKIN分期升高。 b：采用中国MDRD方程估算肾小球滤过率（eGFR）。 c：采用尿干化学分析法检测蛋白尿，分为轻度（微量或1+）与重度（≥2+）。