ABSTRACT
The predictive value of Bishop score, ultrasonographically measured cervical length and fetal fibronectin assay were studied in 146 normal pregnant women at term to predict time and mode of delivery and risk of cesarean delivery. Results showed that the spontaneous onset of labour within 7 days was significantly associated with Bishop score >/= 6 [P=0.01], and with cervical length /= 50 ng/ml [p=0.31]. Both Bishop score >/= 6 and cervical length /= 50 ng/ml and with Bishop score >/= 6 [P=0.01] and that positive fetal fibronectin results at >/= 50 ng/ml and Bishop score are predictive for vaginal delivery rather than cesarean delivery especially if both tests >/= 6 are evaluated together in the same women [positive predictive values were 71.8%, 44.6% and 89.6% respectively]. Failure to detect fetal fibronectin at cervicovaginal discharge at term is predictive to cesarean delivery especially if Bishop score is < 0