TABLE E1.28
Test Result
Field Loss Positive Negative Total
Yes 13 7 20
No 413 4567 49801.29 From the information in the news report quoted in Example 1.11, cal-
culate:
(a) The number of new AIDS cases for the years 1987 and 1986.
(b)The number of cases of AIDS transmission from mothers to new-
borns for 1988.
1.30 In an e¤ort to provide a complete analysis of the survival of patients
with end-stage renal disease (ESRD), data were collected for a sample
that included 929 patients who initiated hemodialysis for the first time at
the Regional Disease Program in Minneapolis, Minnesota between Jan-
uary 1, 1976 and June 30, 1982; all patients were followed until Decem-
ber 31, 1982. Of these 929 patients, 257 are diabetics; among the 672
nondiabetics, 386 are classified as low risk (without comorbidities such
as arteriosclerotic heart disease, peripheral vascular disease, chronic
obstructive pulmonary, and cancer). For the low-risk ESRD patients, we
have the follow-up data shown in Table E1.30 (in addition to those in
Example 1.12). Compute the follow-up death rate for each age group
and the relative risk for the group ‘‘70þ’’ versus ‘‘51–60.’’
TABLE E1.30
Age (years) Deaths Treatment Months
21–30 4 1012
31–40 7 1387
41–50 20 1706
51–60 24 2448
61–70 21 2060
70 þ 17 8461.31 Mortality data for the state of Georgia for the year 1977 are given in
Table E1.31a.
(a) From this mortality table, calculate the crude death rate for the
Georgia.
(b)From Table E1.31 and the data mortality data for Alaska and Flor-
ida for the year 1977 (Table 1.7), calculate the age-adjusted death
rate for Georgia and compare to those for Alaska and Florida, the
EXERCISES 47