Table 5.

Stability of modified-iKM in comparison to the original iKM method

						Modified-iKM			Original iKM
Interval	Lower	Upper	trisk	nrisk		$\widehat{\mathit{\text{nrisk}}}$	$\widehat{\mathit{\text{ncensor}}}$		$\widehat{\mathit{\text{nrisk}}}$	$\widehat{\mathit{\text{ncensor}}}$
When 6-interval information is used:
1	1	19	0	200		200	6		200	6
2	20	43	10	177		177	3		177	3
3	44	63	20	133		133	41		133	41
4	64	87	30	64		64	15		64	17
5	88	117	40	24		24	3		24	2
6	118	132	50	7		7	5		7	7
When 11-interval information is used:
1	1	10	0	200		200	0		200	0
2	11	19	5	191		191	6		191	6
3	20	32	10	177		177	0		177	-3
4	33	43	15	153		153	3		153	3
5	44	53	20	133		133	20		133	19
6	54	63	25	100		100	21		100	22
7	64	77	30	64		64	3		64	6
8	78	87	35	39		39	11		39	11
9	88	103	40	24		24	0		24	-2
10	104	117	45	12		12	2		11	2
11	118	132	50	7		7	5		7	7