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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