# Project #71958 - Measures of Morbidity and Mortality

#### Exercise 1 – Data for Men

The data for men is summarized as follows:

• Of the 454 men in this age group with initial cholesterol levels less than 210 mg/dL (low serum cholesterol group), there were 16 CHD onsets.
• Of the 455 men in this age group with serum cholesterol levels between 210 and 244 mg/dL (intermediate serum cholesterol group), there were 16 CHD onsets.
• Of the 424 men in this age group with cholesterol values of at least 245 mg/dL (high serum cholesterol group), there were 51 CHD onsets.

Using the data for men, calculate the risk or incidence proportion of developing CHD by cholesterol level.

• Denote the 6-year risk of CHD in the low serum cholesterol group with the symbol p0 .
• Denote the 6-year risk of CHD in the intermediate serum cholesterol group with the symbol p1.
• Denote the 6-year risk of CHD in the high serum cholesterol group with the symbol p2.

Calculate the incidence proportion or the risk ratio that compares group 1 to group 0, and calculate the incidence proportion or the risk ratio that compares group 2 to group 0. Then summarize your findings.

#### Exercise 2 – Data for Women

The data for women is summarized as follows:

• Of the 445 women in this age group with initial cholesterol levels less than 210 mg/dL, there were 8 CHD onsets.
• Of the 527 women in this age group with serum cholesterol levels between 210 and 244 mg/dL, there were 16 CHD onsets.
• Of the 689 women in this age group with cholesterol values of at least 245 mg/dL, there were 30 CHD onsets.

Using the data for women, complete an analysis of CHD incidence in women similar to the one completed for men.

Exercise 3-

• Calculate the crude death rate for California. Compare this rate to that of Florida.
• Calculate age-specific death rates.

• What factors could be responsible for the differences (if any) between the California and Florida death rates?
• As a future epidemiologist, what do you need to keep in mind when calculating and reporting death rates?
Unit 6 – Table 1: Vital Statistics for California, 1991
Age (years) Deaths* Population**
0-4 5,500 2,651,000
5-24 5,736 8,824,000
25-44 19,178 10,539,000
45-64 37,313 5,179,000
65-74 45,306 1,874,000
75+ 102,078 1,314,000
Total 215,111 30,381,000
Source: NCHS (1993, p. 102).
** Source: U.S. Bureau of the Census (1992, p. 26).

Unit 6 – Table 2: Vital Statistics for Florida, 1991
Age (years) Deaths* Population**
0-4 2,177 915,000
5-24 2,113 3,285,000
25-44 8,400 4,036,000
45-64 21,108 2,609,000
65-74 30,977 1,395,000
75+ 71,483 1,038,000
Total 136,258 13,278,000
Source: NCHS (1993, p. 105). Age not stated for 35 decedents (omitted from table).
** Source: U.S. Bureau of the Census (1992, p. 26).

 Subject Medicine Due By (Pacific Time) 05/24/2015 09:00 am
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