Table 1 Number of knees (percentage of 20 knees) at each site and at each grade
Grade 0 | Grade 1 | Grade 2 | Grade 3 | Grade 4 | |
|---|---|---|---|---|---|
Site A | 11 (55) | 12 (60) | 6 (30) | 0 (0) | 4 (20) |
Site B | 16 (80) | 8 (40) | 5 (25) | 0 (0) | 3 (15) |
Site C | 0 (0) | 0 (0) | 1 (5) | 13 (65) | 20 (100) |
Site D | 1 (5) | 11 (55) | 10 (50) | 1 (5) | 3 (15) |
Site E | 17 (85) | 7 (35) | 1 (5) | 0 (0) | 1 (5) |
Site F | 0 (0) | 0 (0) | 3 (15) | 15 (75) | 18 (90) |
Site G | 0 (0) | 2 (10) | 11 (55) | 10 (50) | 19 (95) |