Table 2.

Mortality table for the survival of ETT. The number of terminal events equals the number of teeth lost in each interval

Interval start time (years)	Number of teeth entering in each time interval. Survival	Number of teeth withdrawn during this interval	Number of teeth exposed to risk	Number of terminal events. Survival	Probability of surviving (%)	Cumulative survival at the end of each interval	95% CI of cumulative success proportion
							Lower limit	Upper limit
0	598	0	598	0	100	1.00	1	1
5	598	62	567	18	97	.97	0.9504	0.9896
10	518	180	428	32	93	.90	0.8804	0.9196
15	306	83	264	25	91	.81	0.7708	0.8492
20	198	90	153	7	95	.77	0.7308	0.8092
25	101	45	78	1	99	.76	0.7012	0.8188
30	55	34	38	4	89	.68	0.6016	0.7584
35	17	17	8	0	100	.68	0.6016	0.7584