Introduction to Epidemiology 6th Edition by Ray M Merrill

Exercise 1

TABLE 1 Female Crude Malignant First Primary Breast Cancer Incidence Rates in San Francisco and the Metropolitan Areas of Detroit and Atlanta According to Selected Racial Groups, 2006–2008

	White	Black	Other
Location	Rate per 100,000	Rate per 100,000	Rate per 100,000
San Francisco	162.6	128.6	112.0
Detroit (metropolitan)	146.4	116.8	50.2
Atlanta (metropolitan)	124.6	98.2	56.0
Three areas combined	146.8	109.5	94.0

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.

The variables in the table represent what type of data?

Step 1 of 2

Data refers to any measurements, observations or intellectual phenomenon of interest. These are majorly obtained from observation, measurement and experiment of variables. These are categorized in the form of four types of data that virtually requires defining characteristic features such as nominal, discrete, ordinal and continuous.