. 2012 Apr 1;286(1):237–247. doi: 10.1007/s00404-012-2294-6

Table 5.

Both twins in non-cephalic presentation

Author	Year	Study design	Mode of delivery		Gestational age (weeks)	Presentation		Birth weight		5-min Apgar score <7		Neonatal mortality
Author	Year	Study design	VD/CS	N	Gestational age (weeks)	Twin A breech (%)	Twin B breech (%)	Twin A (g)	Twin B (g)	Twin A N (%)	Twin B N (%)	Twin A N (%)	Twin B N (%)
Essel [11]	1996	Prosp cohort	VD	41	NR	100 %	85 %	NR^a	NR^a	NR^a	NR^a	NR^a	NR^a
			SC	27	NR	100 %	93 %	NR^a	NR^a	NR^a	NR^a	NR^a	NR^a
										p > 0.05	p > 0.05	p > 0.05	p > 0.05

Significant differences were defined according to the definitions and statistics used in the different studies

VD Vaginal delivery, CS Caesarean section, N Number 1 of twin pairs, Prosp Prospective, NR Not reported

^aEssel [11]: only the abstract was available