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Table 1 Characteristics of the control and patient groups

From: Smad gene expression in pulmonary fibroblasts: indications for defective ECM repair in COPD

 

Control

Stage II

Stage IV

Number of subjects

5

9

9

Age (years)

62 (36–63)

70 (44–81)

55 (44–61)

Smoking (Ex/C)

2/3

5/4

9/0

Pack-years

13 (0–75)

30 (8–58)

30 (17–54)

FEV1 % predicted

86 (83–108)

73 (50–76)

19 (13–29)

FEV1/FVC % pred

73 (70–81)

55 (37–68)

35 (24–66)

  1. All values are presented as median values with ranges in parentheses. Ex = ex smokers, not smoking for at least one year, C = current smokers; FEV1 % predicted = Forced Expiratory Volume in 1 second as percentage of predicted value; FVC = forced vital capacity; pred = predicted. Stage means severity of COPD according to GOLD criteria.