Authors: Floortje Mols Aline J Pelle Nina Kupper
Publish Date: 2009/02/26
Volume: 18, Issue: 4, Pages: 403-414
Abstract
The SF12 summary scores correlated highly with SF36 summary scores demonstrating that these scores explain the same amount of variance in health status Significant sex differences P 001 existed for both the physical component summary PCS and the mental component summary MCS Multivariate analysis of variance showed a main effect of age in oblique PCS12 P 001 MCS12 P 001 and orthogonally rotated PCS scores PCS12 uc P 001 MCS12 uc P = 07 As expected postMI patients reported statistically significant and clinically relevant poorer mental P 001 and physical functioning P 001 Differences were less pronounced for MCS and PCS derived from orthogonal rotation data When controlling for covariates MI did not significantly affect PCS12 uc anymore in orthogonally rotated data while PCS12 uc was affected by fewer covariates compared with PCS12This study presents Dutch population norms for the SF12 in a large random population sample obtained from both oblique and orthogonal PCA rotation methods revealing systematic differences between the results based on these two methods Furthermore this study demonstrates the discriminative validity of the SF12 by showing that postMI patients differ significantly from the normative population on PCS12 scores
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