Table 5 Item fit statistics for the rescored 12-item brief MHQ and the 9-item brief MHQ
From: Rasch analysis of the brief Michigan Hand Questionnaire in patients with thumb osteoarthritis
Item | Rescored 12-item brief MHQ | 9-item brief MHQ | ||||
|---|---|---|---|---|---|---|
Mean item location | Standard error | Fit Residual (p-value) | Mean item location | Standard error | Fit Residual (p-value) | |
Satisfaction of hand function | 0.458 | 0.043 | -1.337 (0.015) | 0.116 | 0.045 | 0.445 (0.011) |
Feeling in hands | 0.479 | 0.041 | 0.045 (0.543) | 0.139 | 0.043 | 1.716 (0.021) |
Difficulty holding a frying pan | -0.105 | 0.036 | -2.909 (0.041) | -0.477 | 0.037 | -0.938 (0.125) |
Difficulty buttoning a shirt | 0.129 | 0.042 | -2.379 (0.027) | -0.232 | 0.044 | -0.811 (0.279) |
Unable to work | 0.975 | 0.044 | -2.545 (0.0001) | 0.651 | 0.046 | 1.058 (0.183) |
Slower work | 0.370 | 0.041 | -4.994 (< 0.0001)a | Removed | Removed | Removed |
Pain severity | 0.389 | 0.055 | -1.723 (0.004) | 0.025 | 0.057 | -0.327 (0.036) |
Pain during daily activities | 0.201 | 0.044 | -3.068 (0.0001) | -0.163 | 0.045 | -1.032 (0.008) |
Satisfaction of appearance | -1.664 | 0.062 | 12.050 (< 0.0001)a | Removed | Removed | Removed |
Interference of appearance | -1.833 | 0.090 | 7.158 (< 0.0001)a | Removed | Removed | Removed |
Finger motion | 0.196 | 0.047 | -0.149 (0.559) | -0.149 | 0.049 | 1.220 (0.281) |
Wrist motion | 0.404 | 0.046 | -0.087 (0.485) | 0.090 | 0.0480 | 1.086 (0.144) |