Table 4.

FHPD cut-off in prediction of successful vaginal births in different labour scenarios

References	No. of patients (N)	Patient characteristics	Parity	FHPD cut-off (cm)	Sensitivity (%)	Specificity (%)	PPV (%)	NPV (%)
Torkildsen et al. [13]	110	Term patients with singleton vertex with prolonged first stage	Primigravidae	< 4	62	85	93	43
Mohamed [14]	180	Term patient with singleton vertex who underwent induction of labour	Both primigravidae and multigravidae	< 4.8	84.7	84	94.7	61.8
Eggebo and Hassan [15]	150	Term patients with singleton vertex with prolonged first stage	Primigravidae	< 4	69	82	92	48
Yudianto et al. [16]	319	Term patient with singleton vertex in active phase of labour	Both primigravidae and multigravidae	< 4.35	98	80	99.6	44
Kasbaoui et al. [17]	659	Term patient with singleton vertex who had instrumental vaginal delivery	Both primigravidae and multigravidae	< 4	73.3	47.6	23.7	88.7
Present study (2018)	219	Term patient with singleton vertex who underwent induction of labour	Both primigravidae and multigravidae	≤ 5.5	97	88.1	92.9	94.9