Characteristics of CKD-5 patients with PEW.

Continuous data are expressed as median (interquartile range) and compared using Mann & Whitney U test. Categorical data are expressed as the frequency (%) and compared using Chi square test. Abbreviations: CKD, chronic kidney disease, CRP, C-reactive protein, BMI, body mass index, PEW, protein-energy wastng, RAA, renin angiotensin aldosterone.

连续数据以中位数（四分位数间距）表示，组间比较采用曼-惠特尼U检验（Mann & Whitney U test）；分类数据以频数（百分比）表示，组间比较采用卡方检验（Chi square test）。缩写说明：CKD（慢性肾脏病，chronic kidney disease）、CRP（C反应蛋白，C-reactive protein）、BMI（体质量指数，body mass index）、PEW（蛋白质能量消耗，protein-energy wasting）、RAA（肾素-血管紧张素-醛固酮，renin angiotensin aldosterone）。