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Table 1 Demographic, Clinical, and Physiologic Characteristics of Patients with Idiopathic Pulmonary Fibrosis

From: Relationship of flow-volume curve pattern on pulmonary function test with clinical and radiological features in idiopathic pulmonary fibrosis

Characteristics N Value
Age, years 130 71 (65–76)
Gender (Male/Female) 130 104 (80.0%)/26 (20.0%)
BMI, kg/m2 130 23.1 (20.7–25.9)
Smoking history (current or past/never) 130 102 (78.5%)/28 (21.5%)
Pack-years 130 30 (2–46)
FVC %pred., % 130 76.2 (63.9–89.1)
FEV1%pred., % 130 76.3 (65.8–90.2)
FEV1/FVC, % 130 83.0 (76.8–87.8)
DLCO %pred., % 124 70.1 (50.8–85.7)
CPI 124 31.3 (18.2–45.4)
KL-6, U/ml 129 956 (623–1506)
GAP stage (I/II/III) 124 71 (57.3%)/50 (40.3%)/3 (2.4%)
Follow-up period, years 130 3.0 (1.4–3.8)
  1. Data are presented as number or median (interquartile range)
  2. BMI body mass index, FVC forced vital capacity, FEV1 forced expiratory volume in 1 s; DLCO, diffusing capacity of the lungs for carbon monoxide, CPI composite physiologic index, KL-6 Krebs von den Lungen-6, GAP gender, age, and physiology