Table 3.

Proportional hazards model for risk of disease worsening event following treatment with BCG: (At risk=434 with no missing data; events=232)

Group 1 – Complete responders (CR) and age < 67 (n = 137)

Group 2 – Complete responders and age ≥ 67, or No CR and age < 62 (n = 198)

Group 3 – No CR, age ≥ 62 and no prior chemotherapy (n = 44)

Group 4 – No CR, age ≥ 62 and prior chemotherapy (n = 55)

Variable	Hazard ratio (95% CI)	P-value
Group 1	1.00 (reference group)	---
Group 2	1.96 (1.39, 2.77)	0.0001
Group 3	3.08 (1.95, 4.86)	<0.0001
Group 4	5.09 (3.37, 7.68)	<0.0001

At risk = 434 and events = 232