Question
A case-control study was conducted to assess the association between obesity and hemorrhoids: Crude Hemorrhoids No hemorrhoids Obese 201 290 Not obese 99 290 Total
A case-control study was conducted to assess the association between obesity and hemorrhoids:
Crude | Hemorrhoids | No hemorrhoids |
Obese | 201 | 290 |
Not obese | 99 | 290 |
Total | 300 | 580 |
When stratified by age, the following data were observed:
<50 years old | Hemorrhoids | No hemorrhoids |
Obese | 147 | 126 |
Not obese | 63 | 84 |
Total | 210 | 210 |
50 or older | Hemorrhoids | No hemorrhoids |
Obese | 130 | 105 |
Not obese | 60 | 125 |
Total | 190 | 230 |
What is the stratified OR for obesity and hemorrhoids among those 50 or older?
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Applied Regression Analysis And Other Multivariable Methods
Authors: David G. Kleinbaum, Lawrence L. Kupper, Azhar Nizam, Eli S. Rosenberg
5th Edition
1285051084, 978-1285963754, 128596375X, 978-1285051086
