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Table 3 Multivariate analysis of the factors associated with the BEC

From: Determinants of blood eosinophil levels in the general population and patients with COPD: a population-based, epidemiological study

Parameter Univariate Multivariate
P value Estimate (standard error) P value
Intercept   208.09 (31.01) < 0.0001
Age (years) 0.4555   
Sex
 Female Reference Reference  
 Male < 0.0001 30.98 (10.65) 0.0038
BMI (kg/m2) 0.8615   
Smoking
 Never smoker Reference Reference  
 Former smoker 0.0620 10.97 (12.73) 0.3892
 Active smoker 0.0081 31.21 (13.68) 0.0229
Asthma
 No Reference Reference  
 Yes 0.0274 36.91 (16.83) 0.0288
CAT score 0.1159   
FEV1 (%) 0.0002 − 0.53 (0.28) 0.0543
DLCO (%) 0.0474   
YPAS score 0.0493   
6 MWD, m 0.3057   
Exacerbations last year 0.0331   
COPD
 No Reference   
 Yes 0.0003   
Treatment with ICS 0.0099   
Platelets, cells/µl 0.1026   
Fibrinogen (g/L) 0.9357   
CRP (mg/dL) 0.0831   
Total emphysema volume (%) 0.0082 0.94 (0.51) 0.0660
% Airway wall area (Primary Bronchi) 0.4094   
% Airway wall area (Secondary bronchi) 0.1527   
  1. BMI body mass index, CAT COPD assessment test, FEV1 forced expiratory volume in the first second, FVC forced vital capacity, DLCO diffusion capacity of the lung for carbon monoxide, 6MWD 6-min walk distance, YPAS Yale Physical Activity Questionnaire, CRP C-reactive protein. Values in bold are statistically significant. R-Square = 0.067