Table 2.

Kaplan-Meier Estimate for First Complication Event Within 1 Year

Time, min	Number at Risk	Events, n	Survival	SE	Lower 95% CL	Upper 95% CL
0	34	4	0.882	0.0553	0.78	0.998
15	30	1	0.853	0.0607	0.742	0.981
54	28	1	0.822	0.0658	0.703	0.962
64	27	1	0.792	0.07	0.666	0.942
103	22	1	0.756	0.0755	0.622	0.92

CL, confidence limits.