Pain intensity difference (PID) – mean scores of visual analog scale (error bars: 95% C.I., confidence interval) based on drug start at each cycle with Uzara (UZ) or Ibuprofen (IB) (Cycles: UZ, <i>N = 49</i>; IB, <i>N = 54</i>), excluding 17 cycles where rescue analgesia was used.

<p>Pain intensity difference (PID) – mean scores of visual analog scale (error bars: 95% C.I., confidence interval) based on drug start at each cycle with Uzara (UZ) or Ibuprofen (IB) (Cycles: UZ, <i>N = 49</i>; IB, <i>N = 54</i>), excluding 17 cycles where rescue analgesia was used.