A Novel 5-Methylcytosine- and Immune-Related Prognostic Signature Is a Potential Marker of Idiopathic Pulmonary Fibrosis

Table 2

The clinical characteristics of the training, test, and validation cohorts.

Clinical characteristics		Training cohort		Test cohort		Validation cohort
		Number	Percentage	Number	Percentage	Number	Percentage
Status	Alive	18	26.5%	18	40.9%	40	62.5%
	Dead	50	73.5%	26	59.1%	24	37.5%
Gender	Female	11	16.2%	8	18.2%	13	20.3%
	Male	57	83.8%	36	81.8%	51	79.7%
Age (years)	<65	26	38.2%	11	25.0%	22	34.4%
	≥65	42	61.8%	33	75.0%	42	65.6%
GAP^a stages	I	15	22.1%	16	36.4%	25	39.1%
	II	33	48.5%	19	43.2%	31	48.4%
	III	20	29.4%	9	20.5%	8	12.5%

^aGender-age-physiologic variables.