Table 3.
Frequency of Rh factor in subjects with periodontitis
| Rh factor | % | Group I (Mild GCP) | Group II (Moderate GCP) | Group III (Severe GCP) |
|---|---|---|---|---|
| Rh+ | 90.2 | 41 | 83 | 60 |
| Rh- | 9.8 | 7 | 12 | 2 |
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