From: A systematic review of the psychometric properties of the Boston Carpal Tunnel Questionnaire
Comparative Measures | BCTQ construct validity (Spearman rank correlations) | ||
---|---|---|---|
 | BCTQ – total score | Symptom Severity Score | Functional Status Score |
Symptoms | |||
Historical-objective severity scale | Significant correlation (p < 0.001) (Mondelli et al, 2002) | Â | Â |
Duration of symptoms | Significant correlation (p < 0.001) (Mondelli et al, 2002) | Â | Â |
Expectation of symptom relief | 0.51 (.56§) (Bessette et al, 1998) |  |  |
Symptom relief | 0.51 (0.56§) (Bessette et al, 1998) | 0.59 (Katz et al, 1996)* 0.31 (Katz et al, 1996)** | 0.48 (Katz et al, 1996)* 0.19 BCTQ (Katz et al, 1996)** |
Nerve conduction studies | |||
Median-nerve sensory conduction velocity | Â | 0.11 (Levine et al, 1993) | 0.12 (Levine et al, 1993) |
Electrophysiological study | Significant correlation (p < 0.001) (Mondelli et al, 2002) | Â | Â |
Clinical sensory tests | |||
Semmes-Weinstein monofilaments | Â | 0.17 (Levine et al, 1993) | 0.24 (Levine et al, 1993) |
2-point discrimination | Â | 0.15 (Levine et al, 1993) | 0.42 (Levine et al, 1993) |
Clinical motor tests | |||
Pinch strength | 0.73 (Amadio et al, 1996) | 0.47 (Levine et al, 1993) | 0.60 (Levine et al, 1993) |
Grip strength | 0.87 (Amadio et al, 1996) | 0.38 (Levine et al, 1993) | 0.50 (Levine et al, 1993) |
Patient-based measures of function | |||
DASH (6 wk post-operative) | 0.90 (Gay et al, 2003) | Â | Â |
DASH (12 wk pos-toperative) | 0.87 (Gay et al, 2003) | Â | Â |
Arthritis Impact Measurement Scale | 0.71 (Amadio et al, 1996) | Â | Â |
General Health Status, Quality of life and satisfaction | |||
36-item Short-form Health Survey | 0.70 (Physical role scale) (Amadio et al, 1996) | 0.20 – 0.64 ‡ (Preoperative) (Atroshi et al, 1998) 0.33 – 0.64 ‡ (Postoperative) (Atroshi et al, 1998) | 0.29 – 0.70 ‡ (Preoperative) (Atroshi et al, 1998) 0.34 – 0.67 ‡ (Postoperative) (Atroshi et al, 1998) |
Quality of life | 0.50 (0.57§) (Bessette et al, 1998) | 0.68 * (Katz et al, 1996) 0.37 ** (Katz et al, 1996) | 0.54 * (Katz et al, 1996) 0.41 ** (Katz et al, 1996) |
Satisfaction with the outcomes of surgery | 0.56 (0.62§) (Bessette et al, 1998) | 0.69 * (Katz et al, 1996) 0.37 ** (Katz et al, 1996) | 0.55 * (Katz et al, 1996) 0.21 ** (Katz et al, 1996) |