Table 4.
Baseline characteristics according to BMI (kg/m2) (n=39736)
| Characteristics (mean±SE) | Obese (>27.5) (n=5542) |
Overweight (23−27.5) (n=18744) |
Normal (18.5-23.0) (n=14108) |
Underweight (<18.5) (n=1342) |
P value |
|---|---|---|---|---|---|
| Age (yr) | 50.1±0.20 | 50.6±0.11 | 46.5±0.13 | 42.1±0.47 | <0.001 |
| SBP (mmHg) | 136.7±0.21 | 128.7±0.11 | 119.1±0.12 | 111.5±0.37 | <0.001 |
| DBP (mmHg) | 85.9±0.17 | 80.1±0.09 | 73.3±0.09 | 68.9±0.27 | <0.001 |
| FPG (mmol/L) | 5.48±0.01 | 5.31±0.007 | 5.04±0.006 | 4.90±0.02 | <0.001 |
| Red blood cell count (×1012/L) | 4.96±0.007 | 4.86±0.004 | 4.67±0.004 | 4.51±0.01 | <0.001 |
| Hemoglobin (g/L) | 150.6±0.19 | 147.7±0.11 | 141.2±0.13 | 136.1±0.38 | <0.001 |
| White blood cell count (×1012/L) | 6.94±0.02 | 6.5±0.01 | 6.08±0.01 | 5.85±0.04 | <0.001 |
| Platelet (×109/L) | 207.8±0.68 | 203.3±0.37 | 201.6±0.42 | 196.2±1.32 | <0.001 |
| Cholesterol (mmol/L) | 5.14±0.01 | 5.06±0.007 | 4.86±0.008 | 4.69±0.02 | <0.001 |
| Triglyceride (mmol/L) | 1.87±0.02 | 1.54±0.007 | 1.07±0.005 | 0.84±0.01 | <0.001 |
| HDL-cholesterol (μmmol/L) | 1.16±0.01 | 1.25±0.01 | 1.44±0.01 | 1.61±0.01 | <0.001 |
| LDL-cholesterol (μmmol/L) | 3.09±0.01 | 3.00±0.01 | 2.78±0.006 | 2.52±0.02 | <0.001 |
| ALT (IU/L) | 32.8±0.26 | 24.8±0.11 | 18.2±0.09 | 14.8±0.23 | <0.001 |
| AST (IU/L) | 24.5±0.12 | 21.9±0.05 | 20.0±0.06 | 19.4±0.18 | <0.001 |
| Bilirubin (μmmol/L) | 12. 4±0.07 | 12.3±0.04 | 11.9±0.05 | 12.2±0.15 | <0.001 |
| Albumin (g/L) | 47.4±0.04 | 47.5±0.02 | 47.6±0.03 | 48.1±0.09 | <0.001 |
| BUN (mmol/L) | 5.53±0.02 | 5.44±0.01 | 5.22±0.01 | 5.01±0.04 | <0.001 |
| Creatinine (μmmol/L) | 78.9±0.20 | 77.5±0.10 | 71.4±0.13 | 67.4±0.37 | <0.001 |
| SUA (μmmol/L) | 376.5±1.16 | 344.9±0.59 | 302.0±0.64 | 274.8±1.89 | <0.001 |
Data were expressed as the mean mean±SE. All data were analyzed by one-way analysis of variance (ANOVA)