a. Calculate the relative risk of CHD associated with baldness in the stratum of older men.
b. Calculate the relative risk of CHD associated with baldness in the stratum of younger men.
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a. Calculate the relative risk of CHD associated with baldness
in the stratum of older men....
a. What proportion of the older men are bald? b. What proportion of the younger men...
a. What proportion of the older men are bald?
b. What proportion of the younger men are bald?
c. Does there appear to be an association between age and
baldness?
The investigator was concerned that the results might be confounded by age. She stratified the results, displaying them separately for the older subjects (aged 65 and over) and the younger subjects (aged 40-64). Examine the two tables below Results among older subjects: CHD Yes No Total Bald Hairy 100 900...
a. What proportion of the older men are bald? b. What proportion of the younger men...
a. What proportion of the older men are bald?
b. What proportion of the younger men are bald?
c. Does there appear to be an association between age and
baldness?
The investigator was concerned that the results might be confounded by age. She stratified the results, displaying them separately for the older subjects (aged 65 and over) and the younger subjects (aged 40-64). Examine the two tables below Results among older subjects: CHD Yes No Total Bald Hairy 100 900...
The investigator was concerned that the results might be confounded by age. She stratified the results,...
The investigator was concerned that the results might be confounded by age. She stratified the results, displaying them separately for the older subjects (aged 65 and over) and the younger subjects (aged 40-64). Examine the two tables below Results among older subjects CHD Yes No Total Bald Hairy 100 900 Total8507,650 8,500 750 6,750 7,500 1,000 Results among younger subjects: CHD Total 2,500 9,000 Yes No Bald 25 2,475 Hairy 90 8,910 Total 115 11,385 11,500 a. Calculate the TOTAL...
a. What is the relative risk of CHD associated with baldness? In one sentence, interpret this...
a. What is the relative risk of CHD associated with baldness? In
one sentence, interpret this relative risk.
b. Does this result suggest that baldness may be a cause of CHD?
Why or why not?
To determine whether baldness causes coronary heart disease (CHD) in men, a hypothetical cohor study was carried out. The epidemiologist in charge of the study recruited 10,000 bald men and 10,000 men with hair into the study and followed all of them for 10 years...
(a) What is the relative risk of CHD associated with baldness? In one sentence, interpret this...
(a) What is the relative risk of CHD associated with baldness?
In one sentence, interpret this relative risk. --> 4.08
What is b in this situation?
(b) Does this result suggest that baldness may be a
cause of CHD? Why or why not?
To determine whether baldness causes coronary heart disease (CHD) in men, a hypothetical cohor study was carried out. The epidemiologist in charge of the study recruited 10,000 bald men and 10,000 men with hair into the study and...
Indicate the one major type of limitation that is possible in each of the situations described...
Indicate the one major type of limitation that is possible in each of the situations described below. Choose from the following: selection bias, information bias, confounding, random error, limited generalizability or no error. Choose only one per example. A case-control study was conducted to determine whether lower socioeconomic status was associated with a higher risk of cervical cancer. The cases consisted of 250 women with cervical cancer who had been referred to Massachusetts General Hospital for treatment for cervical cancer. They were referred from...
a. What proportion of the older men are bald?
b. What proportion of the younger men are bald?
c. Does there appear to be an association between age and
baldness?
The investigator was concerned that the results might be confounded by age. She stratified the results, displaying them separately for the older subjects (aged 65 and over) and the younger subjects (aged 40-64). Examine the two tables below Results among older subjects: CHD Yes No Total Bald Hairy 100 900...
a. What proportion of the older men are bald?
b. What proportion of the younger men are bald?
c. Does there appear to be an association between age and
baldness?
The investigator was concerned that the results might be confounded by age. She stratified the results, displaying them separately for the older subjects (aged 65 and over) and the younger subjects (aged 40-64). Examine the two tables below Results among older subjects: CHD Yes No Total Bald Hairy 100 900...
The investigator was concerned that the results might be confounded by age. She stratified the results, displaying them separately for the older subjects (aged 65 and over) and the younger subjects (aged 40-64). Examine the two tables below Results among older subjects CHD Yes No Total Bald Hairy 100 900 Total8507,650 8,500 750 6,750 7,500 1,000 Results among younger subjects: CHD Total 2,500 9,000 Yes No Bald 25 2,475 Hairy 90 8,910 Total 115 11,385 11,500 a. Calculate the TOTAL...
a. What is the relative risk of CHD associated with baldness? In
one sentence, interpret this relative risk.
b. Does this result suggest that baldness may be a cause of CHD?
Why or why not?
To determine whether baldness causes coronary heart disease (CHD) in men, a hypothetical cohor study was carried out. The epidemiologist in charge of the study recruited 10,000 bald men and 10,000 men with hair into the study and followed all of them for 10 years...
(a) What is the relative risk of CHD associated with baldness?
In one sentence, interpret this relative risk. --> 4.08
What is b in this situation?
(b) Does this result suggest that baldness may be a
cause of CHD? Why or why not?
To determine whether baldness causes coronary heart disease (CHD) in men, a hypothetical cohor study was carried out. The epidemiologist in charge of the study recruited 10,000 bald men and 10,000 men with hair into the study and...
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