Table 4.

Pearson's correlation coefficients (95% confidence intervals) between GHQ-12 scores and clinical and health-related quality of life variables

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)