Skip to main content

Table 1 Demographics of patients with idiopathic pulmonary fibrosis in the 2 study groups

From: Prevalence, risk factors, and impact of lung Cancer on outcomes of idiopathic pulmonary fibrosis: a study from the Middle East

Characteristic All IPF IPF and LC IPF only P
Subjects No. (%) 246 (100) 34 (13.8) 212 (86.2) 0.000
Age,± SD, y 52.4 ± 8.2 56.6 ± 10.0 47.7 ± 10.2 0.002
Gender No. (%)     0.107
 Male 171 (69.5) 28(82.3) 143 (67.4)  
 Female 75 (30.5) 6 (17.7) 69 (32.6)  
Smoking status     0.033
 Current 180 (73.2) 22 (64.6) 158 (74.4)  
 Past 31 (12.6) 4 (11.8) 27 (12.8)  
 Never 35 (14.2) 8 (23.6) 27 (12.8)  
Pack/years 33.4 ± 16.7 37.2 ± 21.7 30.7 ± 13.1 0.016
FVC (% pred) 80.8 ± 2.9 85.9 ± 2.7 77.1 ± 3.8 0.000
FEV1(% pred) 82.3 ± 5.0 87.0 ± 4.8 76.9 ± 5.9 0.010
TLC (% pred) 69.2 ± 10.1 70.1 ± 12.8 67.8 ± 9.3 0.206
DLCO (% pred) 60.2 ± 8.3 57.1 ± 10.4 62.6 ± 9.5 0.000
Diagnostic method     0.021
 Clinical 218 (88.6) 26 (76.5) 192 (90.6)  
 Surgical 28 (11.4) 8 (23.5) 20 (9.4)  
AEIPF 87 (35.3) 18 (53) 69 (32.5) 0.032
  1. Data are presented as mean ± SD, percentage or median (min-max) unless otherwise indicated. % pred, percentage of the predicted value; FVC; forced vital capacity, FEV1; forced expiratory volume in 1 s, TLC; total lung capacity, DLCO; diffusing capacity of the lung for carbon monoxide, AEIPF; acute exacerbations of idiopathic pulmonary fibrosis