Table 3.

Maximum Likelihood Estimation of Overall Survival According to Primary Score Distribution in the Development Cohort

Primary Score	β Coefficient	Hazard Ratio	95% CI	p Values
0	—	1	—	—
0.5	0.43	1.53	0.96–2.46	0.07
1	0.88	2.41	1.61–3.62	<10–4
1.5	1.21	3.36	2.34–4.83	<10–4
2	1.67	5.31	3.58–7.88	<10–4
2.5	2.22	9.22	6.01–14.13	<10–4
3	2.61	13.65	8.26–22.56	<10–4

CI, confidence interval.