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Table 3 Coefficients of the multiple linear regression equation for the final physical component of quality of life

From: Negative impact of chronic obstructive pulmonary disease on the health-related quality of life of patients. Results of the EPIDEPOC study

Independent variables Coefficients (95% CI) Standard coefficients Sig.
Constant 48.6 (44,8; 52,3)   <0.001
Age -0.25 (-0.28; -0.27) -0.233 <0.001
Sex -1.21 (-1.91; -0.51) -0.050 0.001
Educational level 1.22 (0,82; 1,62) 0.092 <0.001
FEV 1 0.019 (0,16; 0,26) 0.226 <0.001
Oxygen therapy -2.84 (-3.75; -1.93) -0.101 <0.001
Body Mass Index -0.17 (-0.24; -0.10) -0.068 <0.001
2 visits to E.R. -0.84 (-1.02; -0.66) -0.162 <0.001
2 hospital admissions -0.93 (-1.31; -0.54) -0.086 <0.001
  1. R2 = 0.31
  2. Dependent variable: final physical component.
  3. Variables excluded: size of the habitat, smoking