Characteristics of the Study Population
During the, study period there were a total, of 5 481deliveries of
singleton gestations.? Among, these 4 603 cases, were delivered at
term including, cases, 2 480 of nulliparas. Among these term
singleton nulliparas 565 cases,, Underwent induction of labor before
spontaneous onset of labor, or ROM without an intrauterine fetal
demise.The timing of ROM was not available in the medical
records of 10 cases. The remaining 555 cases were classified into
either. An '' early ROM. '' '' group or late ROM '' group according to
the timing, of ROM and additional 55 cases were excluded from
analysis. (39 cases with pre-labor ROM and 16 cases in whom the
distinction between early ROM and late ROM was not possible
.(13 cases in whom emergent cesarean section was performed
before a cervical dilatation of 4 cm with, intact membranes and. 3
cases because artificial ROM was performed before a cervical
dilatation of 4 cm)). Finally five hundred, cases were eligible. For
study and Table 1 lists the indications for labor induction in the
study population.
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