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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

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 crude odds ratio for the association between obesity and hemorrhoids? 2.03

What is the stratified OR for obesity and hemorrhoids among the <50yr olds? 1.56

What is the stratified OR for obesity and hemorrhoids among those 50 or older? 2.17

What is the Mantel Haenszel adjusted odds ratio across age strata? 2.01

which is the most accurate interpretation of the relationship between obesity and hemorrhoids in this example?

Individuals with hemorrhoids were 2.03 times more likely to be obese than those without hemorrhoids.

Individuals <50yr of age with hemorrhoids were 56% more likely to be obese than those without hemorrhoids and individuals 50 years of age with hemorrhoids were 2.58 more likely to be obese than those without hemorrhoids.

Individuals with hemorrhoids were 2.01 times more likely to be obese than those without hemorrhoids, adjusted for age

Both a and b

Both b and c

I think it is A, but I am a little lost.

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