Skip to main content

Table 3 Principal component analysis of functioning variables by two methods. Varimax rotation. All factor loadings are shown, those greater than 0.40 are typed in bold

From: Socio-demographic factors and self-reported funtional status: the significance of social support

I. First method (raw variables)
Questions on functioning Index 1 (SORM) Index 2 (SCR)   Communality
Q1. Work and /or housework 0.906 0.200   0.860
Q2. Social contacts 0.873 0.277   0.838
Q3. Mobility 0.749 0.391   0.803
Q4. Dressing 0.348 0.917   0.871
Q5. Eating 0.221 0.866   0.888
% of total variance explained 68.7 16.4   
II. Second method (binary variables)
Questions on functioning Index 1 (SL) Index 2 (MSCR) Index 3 (MSORM) Communality
Q1. Work and/or housework a 0.604 0.393 0.079 0.614
Q2. Social contacts a 0.709 0.368 -0.126 0.737
Q3. Mobility a 0.716 0.329 -0.144 0.717
Q4. Dressing a 0.856 -0.056 0.002 0.735
Q5. Eating a 0.784 -0.215 0.052 0.663
Q1. Work and/or housework b -0.007 -0.078 0.754 0.580
Q2. Social contacts b 0.014 0.139 0.839 0.723
Q3. Mobility b 0.017 0.283 0.765 0.665
Q4. Dressing b 0.012 0.853 0.162 0.755
Q5. Eating b 0.064 0.792 0.139 0.650
% of total variance explained 33.1 22.2 13.2  
  1. a. 1 = serious limitation, 0 = otherwise b. 1 = minor limitation, 0 = otherwise