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Figure 7 | BMC Urology

Figure 7

From: Sildenafil (Viagra) for male erectile dysfunction: a meta-analysis of clinical trial reports

Figure 7

Number needed to treat for different efficacy outcomes (more than 60% success, more than 40% success and improvement on global question) and number needed to harm for different adverse event outcomes (treatment related adverse events, all cause discontinuations, discontinuations due to inefficacy and adverse events and serious and severe adverse events). For NNT low numbers are better and for NNH high or negative numbers are better. TR AE – treatment related adverse event, Disc – discontinuation

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