Skip to main content
. 2017 Apr 3;177(6):765–773. doi: 10.1001/jamainternmed.2017.0223

Figure 3. Possible Scenarios and Observed Results of the Noninferiority Test.

Figure 3.

Error bars represent 2-sided 95% CIs. A CI that lies entirely to the left of zero indicates the new treatment (CBT, cognitive behavioral therapy; IVR, interactive voice response [IVR-CBT]) is superior. A CI that lies to the left of the noninferiority margin of 1 indicates that the new treatment is noninferior. A CI that includes the noninferiority margin indicates that the result regarding noninferiority is inconclusive. A CI that is entirely above the noninferiority margin indicates the new treatment is inferior. Figure and explanation adapted from Piaggio et al.