New Therapy Conventional Therapy       Recovered Not Recovered Prevalence Recovered Not Recovered Prevalence Odds Ratio Risk Ratio Extend of Disease               Moderate 6 2 0.75 4 7 0.36 5.25 2.06 Severe 6 6 0.50 1 8 0.11 8.00 4.50 Age (years)               20-29 5 1 0.83 3 6 0.33 10.00 2.50 30-40 7 7 0.50 2 9 0.18 4.50 2.75 All 12 8 0.60 5 15 0.25 4.50 2.40

Table 3: Example II descriptive statistics for hypothetical clinical trial [3] comparing the risk of recovery in new and conventional therapy groups.