. Author manuscript; available in PMC: 2010 Apr 12.

Published in final edited form as: Am J Med Genet A. 2008 Dec 15;146A(24):3147–3156. doi: 10.1002/ajmg.a.32585

Table V.

The proportion of relatives with twins, relatives with DZ twin offspring and MZ twin offspring and relatives with only DOS offspring in women with one set of spontaneous DZ twins and women with multiple sets of spontaneous DZ wins

	Index mothers with one DZ twin (n= 8,012)								Index mothers with multiple sets of spontaneous DZ twins (n= 61)

	Relative with twins		Relative with MZ offspring		Relative with DZ offspring		Relative with DOS offspring		Relative with twins		Relative with MZ offspring		Relative with DZ offspring		Relative with DOS offspring
	n	%	n	%	n	%	n	%	n	%	n	%	n	%	n	%

All relatives	2,105	26.3	403	18.2	1,813	81.8	1,071	72.7	27	44.3	3	10.7	25	89.3	12	80.0

Note: DZ offspring includes DOS offspring; percentages in the 4^th and 6^th columns (relative with MZ offspring/relative with DZ offspring) sum to 100% across rows.