A researcher wants to know whether wearing high heels is a risk factor for bunions in women. She contacts 2000 women by selecting random phone numbers from the London telephone directory and assesses them for bunions using a standard foot pain and disability index. She recorded the following results.

Calculate the following statistics from the table:

a) The overall prevalence of bunions in the population

b) The prevalence separately by regular shoe type

c) The risk ratio for regular wearers of high heels

d) The odds-ratio for regular wearers of high heels

Transcribed Image Text:

Irregular high heel wearers Bunion 23 No bunion 952 Regular high heel wearers 208 817