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Table 3 Factor scoring coefficients* used to create SF-36 summary scores

From: Correlated physical and mental health summary scores for the SF-36 and SF-12 Health Survey, V.1

  Physical Mental
  Orthogonal (PCSuc) Oblique (PCSc) Orthogonal (MCSuc) Oblique (MCSc)
Physical Functioning 0.42 0.20 -0.23 -0.02
Role-Physical 0.35 0.31 -0.12 0.03
Bodily Pain 0.32 0.23 -0.10 0.04
General Health 0.25 0.20 -0.02 0.10
Vitality 0.03 0.13 0.24 0.29
Social Functioning -0.01 0.11 0.27 0.14
Role-Emotional -0.19 0.03 0.43 0.20
Emotional Well-Being -0.22 -0.03 0.49 0.35
  1. *Factor scoring coefficients are weights produced by the variables (the 8 scales) used to construct the factors (physical and mental). Factor scoring coefficients are based on factor loadings and vary by how much a particular variable contributes to the factor. Variables that correlate highly with a factor have large factor loadings and a larger factor score coefficient. Factor scoring coefficients are multiplied by the z-score for the scales and summed in order to obtain the estimated factor scores.
  2. n = 6,931