Table 3.

Monthly incidence and conditional probability of irAEs

Landmark month	Patients alive on landmark day with no prior irAE, N	Patients with irAEs in next 30 days, n (%)	Patients with irAEs at any time in the future, n (%)	95% CI for future irAE at any time
					0	470	47 (10.0)	186 (39.6)	35.1 to 44.2
1	415	28 (6.8)	139 (33.5)	29.0 to 38.3
2	358	25 (7.0)	111 (31.0)	26.3 to 36.1
3	312	13 (4.2)	86 (27.6)	22.7 to 32.9
4	270	19 (7.0)	73 (27.0)	21.8 to 32.8
5	222	11 (5.0)	54 (24.3)	18.8 to 30.5
6	193	11 (5.7)	43 (22.3)	16.6 to 28.8
7	176	5 (2.8)	32 (18.2)	12.8 to 24.7
8	163	6 (3.7)	27 (16.6)	11.2 to 23.2
9	146	2 (1.4)	21 (14.4)	9.1 to 21.1
10	132	2 (1.5)	19 (14.4)	8.9 to 21.6
11	118	0 (0.0)	17 (14.4)	8.6 to 22.1
12	109	3 (2.8)	17 (15.6)	9.4 to 23.8

CI, cumulative incidence; irAEs, immune-related adverse events.