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#1
06-03-2011
 USMLE Forums Master Steps History: 1+CK+CS+3 Posts: 1,357 Threads: 194 Thanked 3,259 Times in 881 Posts Reputation: 3269
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
 The above post was thanked by: Mondoshawan (06-03-2011), Panmedic (10-02-2014), pass7 (06-03-2011)

#2
06-03-2011
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1.a
2.c
3.d
 The above post was thanked by: bebix (06-03-2011)
#3
06-03-2011
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B)
C)
B)
 The above post was thanked by: bebix (06-03-2011)
#4
06-03-2011
 USMLE Forums Guru Steps History: 1+CK+CS+3 Posts: 406 Threads: 30 Thanked 140 Times in 108 Posts Reputation: 150

1. B
2. E
3. A

Last edited by pass7; 06-03-2011 at 10:21 AM.
 The above post was thanked by: bebix (06-03-2011)
#5
06-03-2011
 USMLE Forums Guru Steps History: 1+CK+CS Posts: 499 Threads: 85 Thanked 529 Times in 222 Posts Reputation: 539

1/ b
2/ c
3/ a
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 The above post was thanked by: bebix (06-03-2011)
#6
06-03-2011
 USMLE Forums Master Steps History: 1+CK+CS+3 Posts: 1,357 Threads: 194 Thanked 3,259 Times in 881 Posts Reputation: 3269

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]
 The above post was thanked by: pass7 (06-03-2011)
#7
06-03-2011
 USMLE Forums Guru Steps History: 1+CK+CS+3 Posts: 406 Threads: 30 Thanked 140 Times in 108 Posts Reputation: 150

Quote:
 Originally Posted by bebix 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???
#8
06-03-2011
 USMLE Forums Master Steps History: 1+CK+CS+3 Posts: 1,357 Threads: 194 Thanked 3,259 Times in 881 Posts Reputation: 3269

Quote:
 Originally Posted by pass7 [/QUOTE i didnt get the 2nd one. hows its 10/1000???
from Kaplan notes 2010:

then,
The crude mortality rate in Regionville is

death = 1,000
pop = 100,000

1,000/100,000 => 10 per 1,000
 The above post was thanked by: Panmedic (10-02-2014), pass7 (06-03-2011), rulz (10-06-2011)

 Tags Biostatistics-Epidemiology, Step-1-Questions

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