Biostatistics #7 - Case Fatality and Crude/Cause-specific mortality - USMLE Forums
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Old 06-03-2011
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Stats Biostatistics #7 - Case Fatality and Crude/Cause-specific mortality

Regionville is a community of 100,000 persons. During 1985, there were 1,000 deaths from all causes. All cases of tuberculosis have been found, and they total 300: 200 males and 100 females. During 1985, there were 60 deaths from tuberculosis, 50 of them in males.


1.- The case fatality rate for tuberculosis is:
a. 6%
b. 20%
c. 2%
d. equal in males and females
e. cannot be computed from data given

2.- The crude mortality rate in Regionville is
a. 300 per 100,000
b. 60 per 1,000
c. 10 per 1,000
d. 100 per 1,000
e. cannot be computed from data given

3.- The cause-specific mortality rate for tuberculosis is
a. 60 per 100,000
b. 300 per 100,000
c. 200 per 1,000
d. 20%
e. cannot be computed from data given
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Old 06-03-2011
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1.a
2.c
3.d
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B)
C)
B)
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1. B
2. E
3. A

Last edited by pass7; 06-03-2011 at 10:21 AM.
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1/ b
2/ c
3/ a
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Correct Answer correct answer

1.- The case fatality rate for tuberculosis is:
a. 6%
b. 20%
c. 2%
d. equal in males and females
e. cannot be computed from data given

2.- The crude mortality rate in Regionville is
a. 300 per 100,000
b. 60 per 1,000
c. 10 per 1,000
d. 100 per 1,000
e. cannot be computed from data given

3.- The cause-specific mortality rate for tuberculosis is
a. 60 per 100,000
b. 300 per 100,000
c. 200 per 1,000
d. 20%
e. cannot be computed from data given[/QUOTE]
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Old 06-03-2011
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Quote:
Originally Posted by bebix View Post
1.- The case fatality rate for tuberculosis is:
a. 6%
b. 20%
c. 2%
d. equal in males and females
e. cannot be computed from data given

2.- The crude mortality rate in Regionville is
a. 300 per 100,000
b. 60 per 1,000
c. 10 per 1,000
d. 100 per 1,000
e. cannot be computed from data given

3.- The cause-specific mortality rate for tuberculosis is
a. 60 per 100,000
b. 300 per 100,000
c. 200 per 1,000
d. 20%
e. cannot be computed from data given
[/QUOTE

i didnt get the 2nd one. hows its 10/1000???
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Old 06-03-2011
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Quote:
Originally Posted by pass7 View Post
[/QUOTE

i didnt get the 2nd one. hows its 10/1000???
from Kaplan notes 2010:
Biostatistics #7 - Case Fatality and Crude/Cause-specific mortality-screen-shot-2011-06-03-11.26.50-pm.png

then,
The crude mortality rate in Regionville is

death = 1,000
pop = 100,000

1,000/100,000 => 10 per 1,000
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