Table 4

Number of persons alive at the beginning of four consecutive follow-up time intervals and numbers of person-years, colorectal cancer cases and deaths from colorectal cancer, and from other causes, during each follow-up time interval, by sex and arm

	All		Males		Females
Follow-up interval	Screening	Control	Screening	Control	Screening	Control
Persons alive at the beginning of follow-up interval
[0, 2)	180 210	180 282	89 712	89 807	90 498	90 475
[2, 4)	139 696	139 765	68 865	68 950	70 831	70 815
[4, 6)	100 060	100 034	48 706	48 693	51 354	51 341
[6, 8.3)	60 993	61 022	29 537	29 566	31 456	31 456
Person-years
[0, 2)	335 031	335 127	166 096	166 222	168 935	168 905
[2, 4)	251 879	251 992	123 648	123 745	128 231	128 247
[4, 6)	157 381	157 374	76 607	76 603	80 774	80 771
[6, 8.3)	61 189	61 201	29 264	29 282	31 925	31 920
Colorectal cancer cases
[0, 2)	371	287	218	162	153	125
[2, 4)	259	264	148	167	111	97
[4, 6)	194	185	114	107	80	78
[6, 8.3)	79	75	45	41	34	34
Deaths from colorectal cancer
[0, 2)	42	35	27	21	15	14
[2, 4)	50	51	20	33	30	18
[4, 6)	49	52	23	33	26	19
[6, 8.3)	29	26	23	19	6	7
Deaths from other causes
[0, 2)	2815	2781	1965	1948	850	833
[2, 4)	2426	2417	1671	1669	755	748
[4, 6)	1787	1797	1239	1195	548	602
[6, 8.3)	802	804	518	535	284	269