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Table 4 Coefficients of the multiple linear regression equation for the final mental 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 52.6 (50.5; 54.8)   <0.001
Sex -5.71 (-6.57; -4.84) -0.21 <0.001
FEV 1 0.08 (0.04; 0.11) 0.09 <0.001
Oxygen therapy -2.25 (-3.38; -1.13) -0.07 <0.001
≤ 2 visits to E.R. -0.63 (-0.86; -0.40) -0.11 <0.001
≤ 2 hospital admissions -1.01 (-1.49; -0.53) -0.09 <0.001
  1. R2 = 0.11
  2. Dependent variable: final mental component.
  3. Variables excluded: size of the habitat, age, smoking, educational level, Body Mass Index.