“…The results of Bishop, which have subsequently been confirmed, reveal that the proportion of women who will spontaneously labor within 1 week after the appearance of a favorable cervical examination is approximately 70%. [17][18][19] Women with an unfavorable cervix will spontaneously labor within 1 week at a lower rate of 45%, although those women with an unfavorable cervix who remain undelivered may develop a favorable Bishop score. 3,4,[17][18][19] Costs are summarized in Table II.…”