I undersøgelse III var den gennemsnitlige forskel sammenlignet med placebo ÷0, 94 timer, 95% CI [÷1, 36; ÷0, 51], p < 0, 0001.
In study III the mean difference compared to placebo was -0.94h, 95% CI [-1.36, -0.51], p < 0.0001.