Table 4 Pearson's correlation coefficients (95% confidence intervals) between GHQ-12 scores and clinical and health-related quality of life variables
From: Does the 12-item General Health Questionnaire contain multiple factors and do we need them?
Clinical/HRQoL scales | Overall GHQ-12 score | Anxiety and depression (Factor I) | Social dysfunction (Factor II) | Loss of confidence (Factor III) |
|---|---|---|---|---|
Beck Anxiety Inventory | 0.69 (0.58 to 0.77) | 0.68 (0.57 to 0.77) | 0.62 (0.50 to 0.72) | 0.63 (0.50 to 0.72) |
Clinical Global Impression | 0.49 (0.34 to 0.61) | 0.45 (0.29 to 0.58) | 0.47 (0.31 to 0.60) | 0.43 (0.27 to 0.56) |
Physical functioning | -0.17 (-0.34 to 0.01) | -0.18 (-0.35 to 0.00) | -0.16 (-0.33 to 0.02) | -0.12 (-0.29 to 0.06) |
Role physical | -0.63 (-0.73 to -0.51) | -0.60 (-0.71 to -0.48) | -0.61 (-0.71 to -0.48) | -0.51 (-0.63 to -0.36) |
Bodily pain | -0.52 (-0.68 to -0.44) | -0.57 (-0.68 to -0.44) | -0.43 (-0.56 to -0.27) | -0.46 (-0.59 to -0.31) |
General health | -0.57 (-0.68 to -0.44) | -0.57 (-0.68 to -0.43) | -0.52 (-0.64 to -0.38) | -0.50 (-0.62 to -0.35) |
Vitality | -0.71 (-0.79 to -0.61) | -0.73 (-0.80 to -0.63) | -0.63 (-0.73 to -0.51) | -0.62 (-0.72 to -0.50) |
Social functioning | -0.65 (-0.74 to -0.54) | -0.62 (-0.72 to -0.50) | -0.60 (-0.70 to -0.47) | -0.59 (-0.70 to -0.46) |
Role emotional | -0.62 (-0.72 to -0.50) | -0.63 (-0.73 to -0.51) | -0.55 (-0.66 to -0.41) | -0.55 (-0.66 to -0.41) |
Mental health | -0.67 (-0.76 to -0.56) | -0.67 (-0.76 to -0.56) | -0.60 (-0.70 to -0.47) | -0.61 (-0.71 to -0.49) |