Table 1.

Univariate Cox Regression Analysis of PFS

	PFS (Univariate)
	P value	z-score	HR (95%CI)
Volume
Pre-ICIs	.90	–0.13	0.999 (0.979–1.019)
Post-ICIs	.87	0.16	1.001 (0.988–1.015)
Percentage change	.40	–0.84	1.000 (0.999–1.000)
ADC
Pre-ICIs	.68	–0.42	1.000 (0.998–1.001)
Post-ICIs	.31	–1.01	0.999 (0.998–1.001)
Percentage change	.93	–0.09	0.999 (0.999–1.000)
rADC
Pre-ICIs	.06	–1.88	0.34 (0.11–1.04)
Post-ICIs	.16	–1.41	0.54 (0.23–1.27)
Percentage change	.60	0.52	1.003 (0.990–1.018)