Table 4.
The possible effect of blood group A on development of spontaneous keloids
| Blood group (N) | Spontaneous keloids | Total | |
|---|---|---|---|
| Yes | No | ||
| Blood group A | 22 | 93 | 115 |
| Blood groups B, AB, O | 12 | 132 | 144 |
| Total | 34 | 255 | 259 |
| P value (chi-square test) | 0.01 | ||
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