Identification of the Molecular Subgroups in Idiopathic Pulmonary Fibrosis by Gene Expression Profiles

Table 1

Analysis of variance for classification of subgroups, age, and their interactions.

	Df	Sum square	Mean square	F value	Pr (>F)
Subgroup	2	10.42	5.212	3.636	0.032
Age	1	28.30	28.927	19.851	3.88e-05
Subgroup : age	2	6.35	3.176	2.228	0.117
Residuals	58	82.68	1.425

Note. Df: degree of freedom. Significant codes: “” 0.001, “” 0.01, “” 0.05, “.” 0.1, “ ” 1.