Table 8. Perinatal mortality according to gestational order in 2013.
ART procedure	Singleton			Twin			≥Triplets
	LB	SB	ND	LB	SB	ND	LB	SB	ND
IVF/ICSI/other	5,541	158	33	2,863	112	55	217	10	14
FET	2,270	70	8	1,068	23	11	80	3	1
OD	1,577	16	9	1,371	11	14	100	4	0
FET(OD)	590	3	5	347	2	7	18	0	0
Total	9,978	247	55	5,649	148	87	415	17	15
Perinatal mortality (*)	29.38			39.94			71.59

(*) proportion of still birth plus early neonatal death per 1,000 births
LB= live birth; SB= still birth; ND=early neonatal death