High Cholesterol Males Females Total case control case control yes 920 300 780 7
ID: 3229137 • Letter: H
Question
High Cholesterol
Males
Females
Total
case
control
case
control
yes
920
300
780
700
2,700
no
580
700
220
800
2,300
Total
1,500
1,000
1,000
1,500
5,000
Calculate the appropriate measure of association for males
Calculate the appropriate measure of association for females
Is gender associated with high cholesterol? Explain your answer.
Is gender a confounder, effect modifier, or neither of the high cholesterol and diabetes association in this study? Explain your answer.
High Cholesterol
Males
Females
Total
case
control
case
control
yes
920
300
780
700
2,700
no
580
700
220
800
2,300
Total
1,500
1,000
1,000
1,500
5,000
Explanation / Answer
a.Appropriate measure of association for males can be found out by Odds ratio:
Odds ratio = a/c : b/d where a/c is odds of exposure of case and b/d is odds of exposure of control
=(920/580)/(300/700)=3.70
b.Appropriate measure of association for females can be found out by Odds ratio:
Odds ratio = a/c : b/d where a/c is odds of exposure of case and b/d is odds of exposure of control
=(780/220)/700/800)=4.05
c. No gender is not associated with high cholesterol as the odds ratio in both the genders is nearly equal.
d.Gender is a neither of the high cholesterol and diabetes association in this study because it does not effect the validity of the results of the experiment.
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