Table 7.

Bivariate heritability estimates between ipsilateral hippocampal volume and subregions (left and right hippocampal subfield volumes) with 95% confidence intervals (sample size N = 465)

	Ipsilateral hippocampal volume		Subregion		Shared (ipsilateral hippocampal volume and subregion)
Region	H 2 (%)	95% confidence interval	H 2 (%)	95% confidence interval	H 2 (%)	95% confidence interval
Left CA1	86	76–92	82	69–89	86	75–92
Right CA1	85	73–91	78	62–87	83	69–90
Left CA2CA3	80	64–89	43	9–67	77	45–98
Right CA2CA3	86	74–92	76	53–85	84	67–93
Left CA4DG	87	76–92	83	70–90	87	76–93
Right CA4DG	87	77–92	87	75–92	89	79–94
Left SRLM	85	75–91	75	62–84	82	70–89
Right SRLM	87	76–92	81	69–88	85	74–91
Left subiculum	81	67–89	63	32–82	93	67–100
Right subiculum	84	72–91	88	75–92	94	80–100

All values were significant at P < 0.001, when ACE model is compared to CE model.