Table 1. Lung Samples Demographics.

classification by FVC
number of lung samples early stage	6
age range early stage (years)	56–76
average age ± SEM early stage	64 ± 3
gender early stage	1M/5F
FVC early range	80–96
FVC early ± SEM	86 ± 2
number of lung samples middle stage	10
age range middle stage (years)	53–66
average age ± SEM middle stage	59 ± 2
gender middle stage	8M/2F
FVC middle range	50–69
FVC middle ± SEM	58 ± 2
number of lung samples late stage	10
age range late stage (years)	37–62
average age ± SEM late stage	53 ± 3
gender late stage	8M/2F
FVC late range	26–45
FVC late ± SEM	38 ± 2

classification by DLCO (diffuse capacity for carbon monoxide)
number of lung samples advanced IPF	17
age range advanced IPF (years)	37–76
average age ± SEM	57 ± 2
gender advanced IPF	12M/5F
DLCO range advanced IPF	9–38
DLCO advanced IPF ± SEM	24 ± 2
number of lung samples limited IPF	5
age range limited IPF (years)	59–68
average age ± SEM	62 ± 2
gender limited IPF	1M/4F
DLCO range limited IPF	41–80
DLCO limited IPF ± SEM	61 ± 7