Table 5. ANCOVA of the fecundity of maternal and paternal females with individual age as a covariate controlling for cohort age differences.

	Maternal aunts		Paternal aunts
	N	Av. Fec.*	N	Av. Fec.*	df	F	P
Heterosexuals	280	1.56	251	1.82	528	5.543	.019
Homosexuals	347	2.00	280	1.79	624	4.265	.039
	Maternal grandmothers		Paternal grandmothers
	N	Av. Fec. *	N	Av. Fec. *	df	F	p
Heterosexuals	208	3.38	208	3.30	413	.149	.700
Homosexuals	246	3.69	245	3.28	488	5.478	.020

^* Average fecundity.