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Table 1 Clinical profiles of study subjects

From: A promoter SNP rs4073T>A in the common allele of the interleukin 8 gene is associated with the development of idiopathic pulmonary fibrosis via the IL-8 protein enhancing mode

Description Normal controls IPF Clinical-IPF
N 456 162 75
Age, yr (range) 62 (50-87) 58 (41-83) 66 (47-83)
Sex (male/female) 278/178 112/50 51/24
Current Smoker (%)/Ex-smoker (%) 13.8/14.4 28.4/30.2 24.0/28.0
FVC % pred. 98.70 ± 16.73 72.56 ± 17.37 70.94 ± 17.28
DLCO % pred. ND 66.60 ± 19.51 60.71 ± 22.05
  1. IPF: Idiopathic pulmonary fibrosis
  2. FVC: forced expiratory vital capacity
  3. DLCO: Carbon Monoxide Diffusing Capacity
  4. pred.: prediction
  5. ND: not determined