Table 4.

Basic information of IPF patients in validation cohort.

Characteristics	Whole cohort (296)	Low risk (182)	High risk (114)
GSE93606	Whole cohort (57)	Low risk (30)	High risk (27)
Gender
Male	38 (0.667)	18 (0.600)	20 (0.741)
Female	19 (0.333)	12 (0.400)	7 (0.259)
Age
≥65 years	35 (0.614)	18 (0.600)	17 (0.630)
<65 years	22 (0.386)	12 (0.400)	10 (0.370)
GSE32537	Whole cohort (119)	Low risk (59)	High risk (60)
Gender
Male	42 (0.353)	25 (0.424)	17 (0.283)
Female	77 (0.647)	34 (0.576)	43 (0.717)
Age
≥65 years	53 (0.445)	31 (0.525)	22 (0.367)
<65 years	66 (0.555)	28 (0.475)	38 (0.633)
GSE28221	Whole cohort (120)	Low risk (93)	High risk (27)
Gender
Male	92 (0.767)	71 (0.763)	21 (0.778)
Female	28 (0.233)	22 (0.237)	6 (0.222)
Age
≥65 years	76 (0.633)	55 (0.591)	21 (0.778)
<65 years	44 (0.367)	38 (0.409)	6 (0.222)