Table 3.

Univariable Cox regression analysis in cohort 1 (n=103) and cohort 2 (n=108) demonstrating mortality prediction determined by change in various visual CT variables measured with 5-point ordinal scores

Study cohort	Visual CT variable change	HR	95% CI	P value
Cohort 1	Total ILD extent	1.89	1.30 to 2.73	0.001
	Ground-glass opacity extent	1.91	1.30 to 2.79	0.001
	Reticular pattern extent	1.54	1.07 to 2.22	0.02
	Honeycombing extent	2.21	1.50 to 3.28	0.00007
	Traction bronchiectasis severity	2.06	1.40 to 3.06	0.0003
Cohort 2	Total ILD extent	1.60	1.18 to 2.17	0.002
	Ground-glass opacity extent	1.40	1.00 to 1.97	0.054
	Reticular pattern extent	1.68	1.17 to 2.42	0.005
	Honeycombing extent	1.87	1.27 to 2.76	0.002
	Traction bronchiectasis severity	2.61	1.60 to 4.28	0.0001

ILD, interstitial lung disease.