Research implications
Although we have developed a prediction model and validated the model in
an independent study population, the developed model should be further
evaluated in other institutions with different races/ethnicities to
confirm the results of this current study. Moreover, through a
prospective randomized trial, we may be able to establish new protocols
regarding the usefulness of the developed prediction model. In addition,
the maternal or neonatal outcomes in terms of morbidity/mortality after
IOL in twin pregnancies need to be evaluated.