A study is conducted to evaluate risk factors for incident hypertension. All par
ID: 1168736 • Letter: A
Question
A study is conducted to evaluate risk factors for incident hypertension. All participants are free of hypertension at the start of the study and are followed for 4 years at which time they are re-assessed for hypertension. Risk factors are measured in all participants at the start of the study. A total of n=3182 participants enroll and 1123 develop hypertension over 4 years. The following table displays the numbers of participants who develop hypertension by gender and age group.
Women
Develop
Hypertension
Do Not Develop Hypertension
Total
Age 50+ Years
255
237
492
Age < 50 Years
241
916
1157
Total
496
1153
1649
Men
Develop
Hypertension
Do Not Develop Hypertension
Total
Age 50+ Years
283
188
471
Age < 50 Years
344
718
1062
Total
627
906
1533
What is the relative risk for hypertension in women 50+ years versus women < 50 years of age?
RR= ________
What is the relative risk for hypertension in men 50+ years versus men < 50 years of age?
RR= ________
Women
Develop
Hypertension
Do Not Develop Hypertension
Total
Age 50+ Years
255
237
492
Age < 50 Years
241
916
1157
Total
496
1153
1649
Men
Develop
Hypertension
Do Not Develop Hypertension
Total
Age 50+ Years
283
188
471
Age < 50 Years
344
718
1062
Total
627
906
1533
Explanation / Answer
What is the relative risk for hypertension in women 50+ years versus women < 50 years of age?
2.23
What is the relative risk for hypertension in men 50+ years versus men < 50 years of age?
1.85
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