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Table 2 Blood eosinophil levels according to clinical, functional and CT characteristics

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

  Blood eosinophil counts P value
Mean (SD) (95%CI) n
Sex
 Male 194.8 (127.7) (181.1; 208.5) 336 < 0.0001
 Female 158.1 (111.7) (147.0; 169.3) 388
Age
 40–50 166.2 (123.4) (139.9; 192.5) 87 0.848
 50–60 178.5 (126.8) (161.1; 196.1) 204
 60–70 173.0 (118.6) (157.3; 188.8) 219
 > 70 177.7 (116.4) (162.0; 193.4) 214
BMI
 Underweight 166.8 (132.6) (44.2; 289.6) 7 0.928
 Normal 171.7 (136.8) (154.4; 189.0) 243
 Overweight 178.3 (112.7) (165.6; 191.0) 306
 Obese 173.9 (108.5) (157.2; 190.6) 165
Smoking
 Smoker 189.4 (123.2) (172.2; 206.6) 200 0.025
 Former smoker 178.1 (123.3) (164.2; 192.1) 303
 Never smoker 158.2 (113.1) (143.2; 173.2) 221
Asthma diagnosis
 Yes 204.5 (142.0) (171.6; 237.4) 74 0.027
 No 171.8 (117.7) (162.8; 180.9) 650  
COPD
 No 160.7 (114.7) (149.4; 172.0) 399 0.001
 GOLD I 185.8 (115.9) (168.9; 202.8) 183
 GOLD II 197.4 (133.4) (173.3; 221.5) 120
 GOLD III/IV 227.0 (158.0) (157.0; 297.1) 22
DLCO
 > 80% 170.8 (118.5) (160.8; 180.8) 545 0.202
 < 80% 184.2 (116.9) (166.2; 202.3) 163
Exacerbations
 0 173.5 (119.2) (164.4; 182.5) 667 0.222
 1 or more 195.0 (137.1) (158.6; 231.4) 57
YPAS score
 < 51 sedentary 180.3 (122.1) (168.5; 192.0) 416 0.207
 ≥ 51 non-sedentary 169.2 (118.5) (155.6; 182.7) 295
Emphysema
 0–10% 173.0 (123.7) (161.9; 184.1) 480 0.084
 > 10% 190.3 (130.5) (167.9; 212.8) 132
Airway Wall thickness (Primary Bronchi)
 0–20% 179.9 (124.3) (168.9; 191.0) 485 0.071
 > 20% 164.4 (128.4) (141.9; 187.0) 127
Airway Wall thickness (Secondary Bronchi)
 0–30% 173.9 (119.5) (163.3; 184.5) 489 0.192
 > 30% 190.4 (146.0) (164.2; 216.7) 121
  1. BMI body mass index, GOLD Global Initiative for Obstructive Lung Disease, COPD chronic obstructive pulmonary disease, YPAS Yale Physical Activity Questionnaire, DLCO diffusion capacity of the lung for carbon monoxide, CI confidence interval, SD standard deviation