Table 2

Intramuscular (IM) ziprasidone v IM haloperidol in acute psychosis‡

Outcome up to day 3IM ziprasidoneIM haloperidolRRR (95% CI)NNT (CI)
‡Abbreviations defined in glossary. RRR, NNT, and CI calculated from data in article.
Adverse events31%50%38% (3 to 59)6 (3 to 92)