Interobserver agreement and κ values in the examination of athletes with groin pain
| Test | Percentage of agreement between observers | Mean of ‘percentage of agreement’ between observers | Mean of ‘percentage of agreement’ of left and right sides | κ | Mean κ value of left and right sides | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1&2 | 1&3 | 1&4 | 2&3 | 2&4 | 3&4 | |||||
| R, Right; L, left. | ||||||||||
| Adductor functional pain (1A, R) | 91.7 | 100.0 | 100.0 | 91.7 | 91.7 | 100.0 | 95.9 | 95.7 | 0.92 | 0.92 |
| Adductor functional pain (1A, L) | 91.7 | 100.0 | 94.4 | 91.7 | 100.0 | 94.4 | 95.4 | 0.92 | ||
| Adductor palpation pain (2A, R) | 83.3 | 88.9 | 88.9 | 100.0 | 100.0 | 100.0 | 93.5 | 96.8 | 0.88 | 0.94 |
| Adductor palpation pain (2A, L) | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 100.0 | 1.00 | ||
| Adductor stretching pain (3A, R) | 91.7 | 94.4 | 94.4 | 100.0 | 100.0 | 100.0 | 96.8 | 95.9 | 0.88 | 0.74 |
| Adductor stretching pain (3A, L) | 91.7 | 88.9 | 88.9 | 100.0 | 100.0 | 100.0 | 94.9 | 0.61 | ||
| Symphysis palpation pain (4A) | 83.3 | 94.4 | 88.9 | 75.0 | 91.7 | 83.3 | 86.1 | 86.1 | 0.70 | 0.70 |
| Rectus abdominis palpation pain (5A, R) | 91.7 | 94.4 | 100.0 | 91.7 | 91.7 | 94.4 | 94.0 | 93.8 | 0.84 | 0.83 |
| Rectus abdominis palpation pain (5A, L) | 91.7 | 88.9 | 94.4 | 100.0 | 91.7 | 94.4 | 93.5 | 0.81 | ||
| Abdominal functional pain (6A) | 83.3 | 94.4 | 83.3 | 91.7 | 100.0 | 88.9 | 90.3 | 90.3 | 0.57 | 0.57 |
| Abdominal oblique functional pain (6C, R) | 83.3 | 94.4 | 77.8 | 83.3 | 91.7 | 83.3 | 85.6 | 87.0 | 0.41 | 0.41 |
| Abdominal oblique functional pain (6C, L) | 91.7 | 88.9 | 83.3 | 83.3 | 100.0 | 83.3 | 88.4 | 0.41 | ||
| Psoas palpation pain (7A, R) | 91.7 | 88.9 | 88.9 | 91.7 | 91.7 | 88.9 | 90.3 | 90.8 | 0.78 | 0.81 |
| Psoas palpation pain (7A, L) | 83.3 | 94.4 | 100.0 | 91.7 | 83.3 | 94.4 | 91.2 | 0.84 | ||
| Psoas functional pain (8A, R) | 100.0 | 88.9 | 100.0 | 91.7 | 100.0 | 88.9 | 94.9 | 94.9 | 0.66 | 0.64 |
| Psoas functional pain (8A, L) | 100.0 | 94.4 | 94.4 | 100.0 | 91.7 | 88.9 | 94.9 | 0.61 | ||
| Psoas stretching pain (9B, R) | 91.7 | 94.4 | 94.4 | 100.0 | 100.0 | 100.0 | 96.8 | 97.5 | 0.91 | 0.85 |
| Psoas stretching pain (9B, L) | 100.0 | 94.4 | 94.4 | 100.0 | 100.0 | 100.0 | 98.1 | 0.78 | ||
| Adductor strength (1B, R) | 91.7 | 83.3 | 83.3 | 75.0 | 83.3 | 88.9 | 84.3 | 83.1 | 0.22 | 0.19 |
| Adductor strength (1B, L) | 91.7 | 88.9 | 72.2 | 83.3 | 83.3 | 72.2 | 81.9 | 0.16 | ||
| Abdominal strength (6B) | 91.7 | 100.0 | 94.4 | 91.7 | 83.3 | 94.4 | 92.6 | 92.6 | 0.05 | 0.05 |
| Psoas strength (8B, R) | 50.0 | 66.7 | 66.7 | 16.7 | 16.7 | 94.4 | 51.9 | 49.4 | −0.05 | −0.04 |
| Psoas strength (8B, L) | 58.3 | 44.4 | 61.1 | 16.7 | 16.7 | 83.3 | 46.8 | −0.02 | ||
| Psoas flexibility (9A, R) | 100.0 | 83.3 | 83.3 | 91.7 | 91.7 | 77.8 | 88.0 | 86.4 | 0.29 | 0.23 |
| Psoas flexibility (9A, L) | 100.0 | 88.9 | 72.2 | 91.7 | 83.3 | 72.2 | 84.7 | 0.17 | ||