Increased Expression of Epidermal Growth Factor Receptor (EGF-R) in Patients with Different Forms of Lung Fibrosis

Table 1

Baseline and functional characteristics of the study population.

Type of IIP	IPF	COP	fNSIP	cNSIP
Number of subjects	20	15	11	4
Male	18	9	8	2
Female	2	6	3	2
Mean age, years (range)	61 (44–80)	57 (48–72)	53 (48–61)	48 (40–58)
Smoking history
Current smokers	0	0	0	0
Ex-smokers	20	12	7	3
FVC %pred	68±14	75±13	70±9	80±12
FEV1/FVC	88±12	83±5	86±10	90±11
TLC %pred	70±9	74±6	71±8	81±6
DLCO %pred	52±7	62±5	56±6	71±7

Data are presented as median (range), no (total), or mean ± SD, unless stated otherwise.
cNSIP: cellular nonspecific interstitial pneumonia, COP: cryptogenic organizing pneumonia, DL_CO: diffuse lung capacity for carbon monoxide, fNSIP: fibrotic nonspecific interstitial pneumonia, FVC: forced vital capacity, IPF: idiopathic pulmonary fibrosis, TLC: total lung capacity.