Table 4.

Variance components (95% CI) from best-fitting model^a

	A	C	E
Age 12 depressive symptoms	.51 (.42–.60)	0 (n/a)	.49 (.41–.58)
Age 12 alcohol use	.43 (.13–.90)	.42 (.07–.67)	.15 (.08–.23)
Age 14 depressive symptoms	.40 (.38–.56)	.09 (.07–.25)	.51 (.42–.55)
Age 14 alcohol use	.25 (.24–.46)	.56 (.35–.70)	.19 (.14–.25)
Age 17.5 depressive symptoms	.45 (.28–.58)	.08 (.03–.18)	.47 (.37–.59)
Age 17.5 alcohol use	.44 (.43–.45)	.33 (.18–.51)	.23 (.18–.31)

Total might not sum to 1 due to rounding

A genetic variance, C shared environmental variance, E unique environmental variance

^a−2LL = 10884.621, df = 6093, AIC = −1301.379