Finally, we make a suggestion concerning a clinically helpful statistic for reporting results of a randomized controlled trial, especially where the treatment is long-term, possibly has serious negative effects, and is ethically contentious. This is the "number needed to treat" (5), the number of patients who need to be given the experimental treatment to achieve one extra good outcome compared to their having received the control treatment. For example, if the results reported were an unbiased comparison, and the proportion of patients in prolonged involuntary outpatient commitment with readmission in the study year was 32% compared with 48% of those not in involuntary outpatient commitment, the number needed to treat would be about six. That is, six patients would require long-term involuntary outpatient commitment to prevent one from being admitted at least once during the year. Since the researchers found no difference between the two treatment conditions, the number needed to treat was presumably far more—or possibly a negative value, indicating potential harm associated with the intervention.