highly significantP < 0.0001
37 Another study found a highly significant ( P < 0.0001) change in the median emergency department LOS, from 155 (IQR = 19–346) to 35 (IQR = 9–209) min. 24 Another study found a reduction in mean emergency department LOS from 423 (s.d. 265) min pre-intervention to 210 (s.d. 179) min post-intervention.