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| a) Grade | |||
|---|---|---|---|
| Postoperative | Preoperative | ||
| G1 | G2 | G3 | |
| G1 | 190 (77.9%) | 36 (28.4%) | 4 (6.8%) |
| G2 | 41 (16.8%) | 72 (56.7%) | 26 (26.3%) |
| G3 | 7 (2.9%) | 17 (13.4%) | 12 (12.1%) |
| N/A | 6 (2.5%) | 2 (1.6%) | 24 (24.2%) |
| Upgraded patients (%) | 19.7 | 13.4 | N/A |
