GPT and metabolic syndrome: The crude ORs that were significant for metabolic syndrome were 1.03 (95% CI: 1.02, 1.04) in older age; 0.47 (95% CI: 0.31, 0.73) and 0.44 (95% CI: 0.22, 0.88) in better income; 0.48 (95% CI: 0.30, 0.76), 0.32 (95% CI: 0.19, 0.54) and 0.33 (95% CI: 0.14, 0.79) in better education; 1.93 (95% CI: 1.24, 3.02) in abnormal uric acid; 1.85 (95% CI: 1.21, 2.83) in abnormal ALT and 6.55 (95% CI: 1.86, 23.06) in abnormal creatinine.