Table 5 Values of NDI, NPQ and COM across categories for external criteria for disability*
From: Psychometric characteristics of the Spanish version of instruments to measure neck pain disability
External criterion for disability* | No disability | Mild | Moderate | Severe | Very severe |
|---|---|---|---|---|---|
N | 7 | 56 | 82 | 59 | 16 |
NDI | 18.0 (12.0; 46.0) | 27.3 (20.0; 35.5) | 40.0 (28.0; 47.0) | 44.0 (30.0; 60.0) | 70.5 (58.5; 76.0) |
NPQ | 22.2 (13.9; 41.7) | 30.5 (25.0; 37.1) | 38.9 (33.3; 53.1) | 47.2 (38.9; 62.5) | 69.0 (54.8; 77.1) |
COM | 2.4 (1.6; 2.6) | 2.5 (2.0; 2.9) | 2.7 (2.4; 3.2) | 3.0 (2.6; 3.7) | 3.6 (3.1; 4.0) |