
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?
a. 1:8 proportion of older men are bald .
In every 8 persons ,1 person is bald
b. 1:460 proportion of younder men are bald.
In every 460 members 1 member is bald.
c. Yes Clearly we have seen the relation between age and bald ness.
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. 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.
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...
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...