Table 4.
Number of serum samples from patients with high or low levels of anti-C1q and anti-mannose-binding lectin (anti-MBL)
| Anti-C1q | ||
|---|---|---|
| > 90 aU/ml | < 90 aU/ml | |
| Anti-MBL | ||
| > 100 aU/ml | 33 | 4 | 
| < 100 aU/ml | 18 | 13 | 
| Fisher's exact test P = 0·05 | ||
aU, arbitrary units.