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Table 1 Reliability and correlation of the SF-36 dimensions.

From: Health related quality of life measured by SF-36: a population-based study in Shanghai, China

   Reliability Correlation
Dimension Item amount Split-half reliability Test-retest difference mean ICC Cronbach's α Correlations between dimensions and items inside Correlations between dimensions and items outside PCS MCS
PF 10 0.909 0.153† 0.964 0.862 0.257–0.922 0.164–0.564 0.756 0.340
RP 4 0.974 -1.020† 0.735 0.950 0.869–0.905 0.108–0.655 0.634 0.425
BP 2 0.904 -1.224† 0.817 0.863 0.837–0.976 0.063–0.363 0.656 0.177
GH 5 0.593 0.010† 0.952 0.818 0.716–0.785 0.123–0.624 0.756 0.517
VT 4 0.927 -0.867* 0.972 0.785 0.644–0.868 0.155–0.624 0.533 0.690
SF 2 0.368 -0.225† 0.689 0.308 0.662–0.687 0.067–0.322 0.326 0.508
RE 3 0.967 0.000† 0.898 0.951 0.877–0.952 0.080–0.614 0.351 0.599
MH 5 0.647 -0.204† 0.817 0.691 0.596–0.801 0.095–0.579 0.266 0.877
  1. * P-value = 0.034, † P-value > 0.05