Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 12

TABLE 3 Age-Specific Female Malignant Breast Cancer Incidence in the Combined Areas of San Francisco and the Metropolitan Areas of Detroit and Atlanta According to Selected Racial Groups, 2006–2008

	White		Black		Other
Years	Cases	Population	Cases	Population	Cases	Population
< 50	3,616	7,420,076	1,415	3,344,874	662	1,586,388
50–54	1,913	830,549	690	293,626	286	148,548
55–59	2,094	736,737	692	244,829	293	131,258
60–64	2,043	567,178	577	162,834	194	89,008
65–69	1,788	400,785	443	111,761	206	69,068
70+	4,940	1,210,138	1,026	266,941	429	177,188

Data from Surveillance Research Program, National Cancer Institute. SEER*Stat software Version 6.4.4.

Available at: http:///www.seer.cancer.gov/seerstat. Accessed January 10, 2012.

Describe the age distribution for the three racial groups.

Step 1 of 2

Age distribution can be defined as the proportion of number of people which are in consideration to all the people in that age group.

This is also known as age composition.