Triplet Rate according to Maternal.

Maternal age	Number of triplet sets						Triplet rate per million deliveries
	MMM	MMF	MFF	FFF	UK	Total	Like sexed	Unlike-sexed	Total¹
< 25	29	37	29	30	11	136	34.3	38.3	78.9
25–29	143	244	212	141	37	777	71.2	114.4	194.9
30–34	210	358	409	186	54	1217	95.8	185.5	294.3
35–39	102	187	164	107	28	588	134.9	226.6	379.6
≥ 40	13	10	10	8	7	48	99.7	94.9	227.8
Total	497	836	824	472	137	2766	83.5	143.1	238.4

¹Including unknown sexes

Table 2: Triplet Rate according to Maternal Age during the Period, 1999-2008.

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