Table 2.

Sex-specific individual-level phenotypic associations between total hippocampal volume and substance use phenotypes

Model	Beta [95% CI]	s.e.
Drink Index
Women	−124.70 [−189.03 to −56.31]	34.18
Men	6.57 [−97.28 to 106.77]	51.39
Cannabis Index
Women	−47.59 [−88.16 to −2.04]	22.05
Men	−12.62 [−58.32 to 35.73]	23.97
Cigarettes per day
Women	−120.09 [−182.42 to −56.88]	32.19
Men	−35.47 [−113.17 to 39.21]	38.65

Notes: Significant effects are in bold, determined by the nonparametric bootstrap 95% CI around the unstandardized beta estimate not overlapping with zero. CI = confidence interval; s.e. = standard error.