We found no difference in operative time in either gestational cohort ( early cohort [ minutes ] : 5.113.0 dilators alone , 4.993.3 misoprostol , 4.332.0 mifepristone , P = .34 ; late cohort [ minutes ] : 7.503.7 dilators alone , 7.625.4 misoprostol , 6.743.2 mifepristone , P = .53 ) .