Why different trials on digitalis give conflicting data

Taking a careful look at each of the outcomes measured in randomized, controlied trials of digoxin suggest that discrepancies in results may be more apparent than real. Digoxin does work, but clinically important benefit is restricted to a relatively small proportion of congestive heart failure (CHF) patients. The play of chance, the dose of digozin used, and the severity of heart failure in patients enrolled in the studies are other factors …