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The CRS grading system used to evaluate efficacy.
| Course of treatment | Score 1 | Score 2 | Score 3 | X2 | P |
|---|---|---|---|---|---|
| 1 course of treatment | 5 (6.94) | 4 (5.56) | 2 (2.78) | 8.440 | 0.148 |
| 2 courses of treatment | 10 (13.89) | 13 (18.06) | 1 (1.39) | ||
| 3 courses of treatment | 7 (9.72) | 20 (27.78) | 0 (0) | ||
| 4–7 courses of treatment | 4 (5.56) | 5 (6.94) | 1 (1.39) |
