In total, 504 metabolites met the marker selection criteria. AN, acute nephritis; AN-C, control group for acute nephritis; CN, chronic nephritis; CN-C, control group for chronic nephritis.
OR1: adjustment for age, sex, hypertension and diabetes. OR2: OR1 plus adjustment for cardiovascular disease; OR3: OR2 plus adjustment for former kidney disease and nephrotoxic drugs. OR4: OR3 plus ad