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Table 1 Patient demographic characteristics

From: Blood cell for the differentiation of airway inflammatory phenotypes in COPD exacerbations

Parameters

All patients (N = 287)

Mean age, years

75(68–80)

Males, n (%)

182(63.41)

BMI, kg/m 2

20.7(18.3–23.42)

FVC (L)

2.11 (1.66–2.68)

FEV1(L)

0.99 (0.68–1.44)

FEV1% predicted

46.8 (31–63.85)

FEV1/FVC (%)

49.8 (39.12–58.9)

Smokers, n (%)

156(54.36)

Sputum eosinophils %

1(0–2.79)

Sputum neutrophils %

92.56(82.35–96.11)

Sputum lymphocytes %

1.5(0.5–3)

Sputum macrophages %

2.22(0.83–8.17)

  1. Note: N refers to the total population; n refers to the sub-group population; BMI Body mass index, FVC Forced vital capacity, FEV1 Forced expiratory volume in 1 s;
  2. Values are expressed as median (inter-quartile range)