TABLE 4

Univariate Analysis of Factors Associated with TFS

Variable	n	HR	95% CI	P
Age	90	1.00	0.96–1.03	0.81
Sex	90	3.47	1.44–9.65	0.0047^*
UIP or non-UIP pattern	90	0.70	0.25–1.71	0.45
%FVC	75	0.97	0.95–0.99	0.0087^*
%DLco	61	0.93	0.88–0.97	0.0002^*
ILD-GAP index	75	2.28	1.44–3.82	0.0003^*
KL-6	73	1.00	1.00–1.00	0.049^*
SP-D	49	1.00	1.00–1.01	0.050
CRP	85	0.81	0.52–1.05	0.13
LDH	83	1.00	1.00–1.00	0.87
SUV_max	90	0.97	0.58–1.62	0.91
SUV_mean	90	51.0	8.24–306	<0.0001^*
SUV_TF	90	3.08	1.42–6.26	0.0055^*
CT_mean	84	1.00	1.00–1.01	0.059

↵* P < 0.05.
HR = hazard ratio; CI = confidence interval; TF = tissue fraction.