Table 5.

Bivariate genetic correlation (r _g) between hippocampal subfield volumes with ipsilateral hippocampal volume and total brain volume (TBV)

	Left hippocampal volume	TBV
Left CA1	0.98	0.77
Left CA2CA3	0.75	0.49
Left CA4DG	0.94	0.69
Left SRLM	0.98	0.70
Left subiculum	0.76	0.71
Left hippocampus		0.77
	Right hippocampal volume	TBV
Right CA1	0.97	0.77
Right CA2CA3	0.79	0.55
Right CA4DG	0.93	0.69
Right SRLM	0.97	0.68
Right subiculum	0.66	0.67
Right hippocampus		0.78

All subfield volumes showed significant correlation between ipsilateral hippocampal volume and TBV (P < 0.001).