Table 1. The baseline features of samples by dividing into two groups (normal and hyperhomocysteinemia) to describe the association between complement 4 (C4) and homocysteine (HCY).
| Total | normal (5–15μmol/L) | HHCY (>15μmol/L) | P value | |
|---|---|---|---|---|
| Number | 1436 | 840 | 596 | |
| Age | 35.14±9.59 | 38.17±11.98 | <0.001 | |
| C4 | 0.34±0.08 | 0.33±0.08 | 0.086 | |
| BMI (kg/m2) | 23.20±3.43 | 23.29±3.20 | 0.627 | |
| WHR (%) | ||||
| ≤0.9 | 549 | 367 | ||
| >0.9 | 291 | 229 | 0.142 | |
| Smoking (%) | ||||
| No | 368 | 266 | ||
| Yes | 472 | 330 | 0.757 | |
| Drinking (%) | ||||
| No | 120 | 92 | ||
| Yes | 720 | 504 | 0.545 |
The threshold value of homocysteine was defined as 15μmol/L.