Table 3. Causes of death at 1 year by age group and AJCC stage.

Cause of death	Age <65	Age 65–74	Age ⩾75
Stage I (N=350 deaths)	(N=26)	(N=56)	(N=268)
Colon cancer	9 (34.6%)	8 (14.3%)	61 (22.8%)
Cardiovascular disease	5 (19.2%)	21 (37.5%)	108 (40.3%)
Respiratory disease	2 (7.7%)	5 (8.9%)	26 (9.7%)
Other primary cancer	3 (11.5%)	8 (14.3%)	21 (7.8%)
Infection	1 (3.8%)	4 (7.1%)	11 (4.1%)
Gastrointestinal disease	1 (3.8%)	1 (1.8%)	4 (1.5%)
Neuropsychiatric disease	0 (0%)	1 (1.8%)	6 (2.2%)
Trauma	1 (3.8%)	2 (3.6%)	5 (1.9%)
Renal disease	0 (0%)	1 (1.8%)	3 (1.1%)
Diabetes mellitus	0 (0%)	1 (1.8%)	5 (1.9%)
Other cause	2 (7.7%)	1 (1.8%)	5 (1.9%)
Unknown cause	2 (7.7%)	3 (5.4%)	13 (4.8%)
Stage II (N=801 deaths)	(N=70)	(N=127)	(N=604)
Colon cancer	32 (45.7%)	50 (39.4%)	222 (36.7%)
Cardiovascular disease	6 (8.6%)	28 (22.0%)	204 (33.8%)
Respiratory disease	4 (5.7%)	6 (4.7%)	50 (8.3%)
Other primary cancer	10 (14.3%)	15 (11.8%)	39 (6.5%)
Infection	2 (2.9%)	4 (3.1%)	25 (4.1%)
Gastrointestinal disease	4 (5.7%)	8 (6.3%)	10 (1.7%)
Neuropsychiatric disease	1 (1.4%)	4 (3.1%)	5 (0.8%)
Trauma	1 (1.4%)	2 (1.6%)	8 (1.3%)
Renal disease	2 (2.9%)	1 (0.8%)	3 (0.5%)
Diabetes mellitus	3 (4.3%)	3 (2.4%)	5 (0.8%)
Other cause	2 (2.9%)	2 (1.6%)	6 (1.0%)
Unknown cause	3 (4.3%)	4 (3.1%)	27 (4.5%)
Stage III (N=1020 deaths)	(N=130)	(N=218)	(N=672)
Colon cancer	90 (69.2%)	123 (56.4%)	395 (58.8%)
Cardiovascular disease	10 (7.7%)	34 (15.6%)	117 (17.4%)
Respiratory disease	4 (3.1%)	11 (5.0%)	30 (4.5%)
Other primary cancer	9 (6.9%)	15 (6.9%)	40 (5.9%)
Infection	3 (2.3%)	12 (5.5%)	14 (2.1%)
Gastrointestinal disease	3 (2.3%)	4 (1.8%)	13 (1.9%)
Neuropsychiatric disease	0 (0%)	0 (0%)	12 (1.9%)
Trauma	3 (2.3%)	1 (0.5%)	5 (0.7%)
Renal disease	0 (0%)	0 (0%)	7 (1.0%)
Diabetes mellitus	2 (1.5%)	4 (1.8%)	6 (0.9%)
Other cause	1 (0.8%)	4 (1.8%)	28 (0.7%)
Unknown cause	5 (3.8%)	10 (4.6%)	28 (4.2%)