In a clinical trial of

2053 subjects treated with a certain drug, 28 reported headaches. In a control group of 1652 subjects given a placebo, 25 reported headaches. Denoting the proportion of headaches in the treatment group by

pSubscriptt

and denoting the proportion of headaches in the control (placebo) group by

pSubscriptc,

the relative risk is

pSubscriptt/pSubscriptc.

The relative risk is a measure of the strength of the effect of the drug treatment. Another such measure is the odds ratio, which is the ratio of the odds in favor of a headache for the treatment group to the odds in favor of a headache for the control (placebo) group, found by evaluating

pt/1pt/pc/1pc.

The relative risk and odds ratios are commonly used in medicine and epidemiological studies. Find the relative risk and odds ratio for the headache data.

RELATIVE RISK = ?

ODDS RATIO= ?