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Table 2 Comparison of parameters between non-severe episode group and severe episode group in all enrolled subjects

From: Prediction of gold stage in patients hospitalized with COPD exacerbations using blood neutrophils and demographic parameters as risk factors

Category Variable Units FEV1 < 1 L as the threshold of severe episode of ECOPD
Non-severe episode
(N = 93)
Severe episode
(N = 62)
P value
Demographics Male N (%) 82(88.17) 53(85.48) 0.587
  Age Years 74.00(68.00, 79.00) 76.50(69.00, 80.00) 0.202
  Height cm 165.50(162.00, 170.00) 163.50(157.50, 168.00) 0.018
  Weight kg 66.57(9.94) 59.79(10.31)  < 0.001
  BMI   24.38(3.73) 22.65(3.36) 0.008
Blood count NEU % 72.05(65.08, 80.95) 82.40(71.80, 86.40)  < 0.001
Pulmonary function FEV1 L 1.37(1.15, 1.72) 0.78(0.67, 0.86)  < 0.001
  FEV1 Z-score   -2.29(-2.70, -1.83) -3.53(-3.77, -3.18)  < 0.001
  FEV1%Pred   57.34(49.50, 67.95) 33.46(28.83, 37.46)  < 0.001
  1. Data expressed as mean (SD) or median (IQR); N: numbers of patients