A clinical trial is conducted comparing a new pain medication for arthritis. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within 30 minutes. The data are shown below.

Estimate the risk difference in pain relief between treatments. ____________

Estimate the relative risk in pain relief between treatments._______________

Estimate the odds reatio in pain relief between treatments.________________

	Pain Relief	No pain relief
New Medicine	44	76
Placebo	21	99