Colon cancer in Luxembourg: a national population-based data report, 1988–1998

BMC Cancer

Table 2 Invasive colon adenocarcinomas (n = 1232*) by anatomic site (left and right colon), by age groups (<40 years; 40–69 years; >69 years) and age-specific incidence rates; 1988–1992 and 1994–1998.

Age groups	Number of incident cases (ri)	Person- years of obervation (ni)	Age-specific rates per 100,000 (ri/ni)	p-values **
<40 years
colon right 1988–1992	5	1 072 099	0.5	p = n.s.
colon right 1994–1998	9	1 151 878	0.8
colon left 1988–1992	2	1072 099	0.2	p = n.s.
colon left 1994–1998	5	1151 878	0.4
40–69 years
colon right 1988–1992	130	676 772	19.2	p = n.s.
colon right 1994–1998	142	742 577	19.1
colon left 1988–1992	150	676 772	22.2	p = n.s.
colon left 1994–1998	131	742 577	17.6
>69 years
colon right 1988–1992	122	175 629	69.5	p < 0.001
colon right 1994–1998	215	196 145	109.6
colon left 1988–1992	144	175 629	82.0	p = n.s.
colon left 1994–1998	177	196 145	90.2

ISSN: 1471-2407