Table 13.

The number of siblings of straight and lesbian women

	Sexual orientation
	Straight			Lesbian
	Na	M	SD	Na	M	SD
Maternal younger brothers	331	0.35	0.64	265	0.35	0.68
Maternal older brothers	331	0.28	0.53	265	0.37	0.66
Maternal younger sisters	331	0.32	0.58	265	0.35	0.58
Maternal older sisters	331	0.30	0.54	265	0.32	0.68
Nonmaternal younger brothers	331	0.13	0.40	265	0.22	0.57
Nonmaternal older brothers	331	0.11	0.39	265	0.18	0.53
Nonmaternal younger sisters	331	0.13	0.42	265	0.11	0.40
Nonmaternal older sisters	331	0.11	0.41	265	0.17	0.53

^aThere were no missing values in any of the variables