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Table 3 Reduced multivariate model for the physical component summary (PCS) of the SF-36

From: Multimorbidity and quality of life: a closer look

Variable Parameter Estimate Standard error p value
Intercept 54.62 1.42 <0.0001
Mild or moderate Musculoskeletal problem (Mus1,2) -3.77 1.53 0.0145
Severe Musculoskeletal problem (Mus3,4) -8.11 1.92 <0.0001
Mild, moderate or severe Neurological problem (Neu1,2,3,4) -3.84 1.50 0.0111
Moderate or severe Psychiatric problem (Psy2,3,4) -4.06 1.40 0.0041
Severe Cardiac problem (Car3,4) -1.85 2.83 0.5142
Moderate or severe Respiratory problem (Res2,3,4) -3.11 1.62 0.0564
Car3,4 and Res2,3,4 -8.85 4.07 0.0307
Moderate or severe Upper gastrointestinal problem (Upg2,3,4) -8.98 2.47 0.0003
Mild, moderate or severe Vascular problem (Vas1,2,3,4) -6.58 1.49 <0.0001
Upg2,3,4 and Vas1,2,3,4 +8.08 3.10 0.0097
  1. kept in the model because involved in an interaction