Table 5. Rates of chronic endometritis in each stage of endometriosis and comparison between early stages (I+II) and late stages (III+IV).
| r-AFS | Positive rate (%) |
| Stage I | 40.00 (2/5) |
| Stage II | 50.00 (2/4) |
| Stage III | 70.00 (7/10) |
| Stage IV | 46.67 (7/15) |
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