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Table 1 Clinical characteristics of COPD patients and controls with airway biopsy available.

From: Multidrug resistance-associated protein-1 (MRP1) genetic variants, MRP1 protein levels and severity of COPD

  COPD patients (n = 114) Controls (n = 37)
Males, n (%) 99 (86.8) 16 (43.2)
Age (years) 61.6 ± 7.7 52.3 ± 5.5
Height (cm) 175.5 ± 7.8 172.8 ± 10
Packyears¶ 41.8 (31.2 - 54.7) 25.4 (20.2-35.0)
Current smoker, n (%) 72 (63.2) 30 (81.1)
FEV1/FVC (%) 49.5 ± 8.8 77.2 ± 6.1
FEV1 (L) 1.8 ± 0.4 3.2 ± 0.8
FEV1 % pred.* 56 ± 10 100 ± 14
MRP1 level #, n 80 26
  1. Data are presented as mean ± standard deviation or ¶ median (25th - 75th percentile); FEV1 = forced expiratory volume in one second; FEV1/FVC = FEV1/forced vital capacity; * % pred. = percentage of predicted value; # refers to the number of individuals having bronchial biopsies with available MRP1 levels of intensity; MRP1 = multidrug resistance-associated protein-1