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Quantitative distribution of hip pain grades in various ratios of necrotic area.
| Ratio of necrotic area | Pain grading Grade0 (%) | Grade1 (%) | Grade2 (%) | Total (%) |
|---|---|---|---|---|
| Grade 0 | 48(96.00) | 2(4.00) | 0 | 50 (100) |
| Grade1 | 10(14.93) | 54(80.60) | 3(4.48) | 67 (100) |
| Grade 2 | 9(19.15) | 14(29.79) | 24(51.06) | 47 (100) |
| Grade 3 | 0 | 7(25.93) | 20(74.07) | 27(100) |
| Total | 67(35.08) | 77(40.31) | 47(24.61) | 191(100) |
