Table 2.

Unadjusted total cancer mortality by age group, sex, and center – the Strong Heart Study, 1989–2010

Characteristic	Center	No. of participants	No. of cancer deaths	Person-years of follow-up	Cancer Mortality*	95% Confidence Interval
Total	All	3516	340	53739.7	6.33	5.67	7.04
Age (years)
45–54	All	1710	104	28733.1	3.62	2.96	4.39
55–64	All	1167	137	17332.2	7.90	6.64	9.34
65–74	All	639	99	7674.5	12.90	10.48	15.71
Sex
Male	All	1460	146	21064.3	6.93	5.85	8.15
Female	All	2056	194	32675.4	5.94	5.13	6.83
Center
AZ		467	33	6868.9	4.80	3.31	6.75
OK		1527	138	24203.1	5.70	4.79	6.74
N/SD		1522	169	22667.8	7.46	6.37	8.67
Sex and Center
Female	AZ	307	22	4810.9	4.57	2.87	6.92
Female	OK	885	80	14605.4	5.48	4.34	6.82
Female	N/SD	864	92	13259.1	6.94	5.59	8.51
Male	AZ	160	11	2058.0	5.35	2.67	9.56
Male	OK	642	58	9597.7	6.04	4.59	7.81
Male	N/SD	658	77	9408.7	8.18	6.46	10.23

Abbreviations: AZ, Arizona Center; N/SD, North and South Dakota Center; OK, Oklahoma Center.

^*Mortality is expressed cancer deaths per 1000 person-years.