FIGURE 3.

Difference in mean DPRS score at the end of treatment between SR pregabalin and IR pregabalin groups (per-protocol set). †Mixed-effects model for repeated measures included visit, baseline DPRS score (averaged from the last 7 available DPRS scores during the placebo run-in period), stratification factor (diabetic peripheral neuropathy and postherpetic neuralgia), and treatment group as fixed effects, as well as visit-by-baseline score interaction and visit-by-treatment group interaction. CI indicates confidence interval; DPRS, Daily Pain Rating Scale; IR, immediate-release; LS, least square; NI, noninferiority; SR, sustained-release.