highly significantP = 0.001
Return to theater for same-day D&E 3–4 hours after dilator insertion on Day 2 occurred in 94 of 151 (62.3%) in Dilapan-S cohort C, 14 of 151 (9.3%) in laminaria cohort A, and two of 52 (3.8%) in laminaria cohort B, a highly significant Dilapan-S advantage ( P = 0.001).