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Table 2 Pearson correlations between the SF-36v2 scales, internal consistency estimates, and correlations with the two rotated factor components (N = 1884)

From: Performance of the Dutch SF-36 version 2 as a measure of health-related quality of life in patients with rheumatoid arthritis

  Observed correlations Hypothesized Observed correlations
Scales PF RP BP GH VT SF RE MH Dimension Physical component Mental component
PF (0.93)         P 0.85 0.19
RP 0.71 (0.95)        P 0.78 0.42
BP 0.63 0.69 (0.88)       P 0.83 0.22
GH 0.54 0.60 0.54 (0.79)      P/M 0.66 0.38
VT 0.57 0.67 0.60 0.62 (0.79)     M/P 0.60 0.59
SF 0.58 0.68 0.61 0.56 0.67 (0.82)    M 0.58 0.63
RE 0.47 0.64 0.45 0.46 0.55 0.61 (0.94)   M 0.33 0.79
MH 0.37 0.49 0.40 0.46 0.63 0.63 0.65 (0.87) M 0.18 0.91
  1. Scale internal consistency reliability (Cronbach’s α) is presented in the diagonal. PF, Physical functioning; RP, Role-physical; BP, Bodily pain; GH, General health; VT, Vitality; SF, Social functioning; RE, Role-emotional; MH, Mental health; P, Physical factor content; M, Mental factor content.