Figure 2
From: Onset of analgesia with ibuprofen sodium in tension-type headache: a randomized trial
Two- and 3-hour summary efficacy measures. *P ≤ .001 vs placebo; IBUMot, Motrin®; IBUNa, ibuprofen sodium dihydrate; SE, standard error; SPID, sum of pain intensity difference scores; SPRID, time-weighted sum of Pain Relief Rating and pain intensity difference scores; TOTPAR, time-weighted sum of Pain Relief Rating scores; 0–3, from time 0 to 3 hours after study administration; 0–2, from time 0 to 2 hours after study administration.