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. Author manuscript; available in PMC: 2020 Aug 1.

Published in final edited form as: Drug Alcohol Depend. 2019 May 29;201:29–37. doi: 10.1016/j.drugalcdep.2019.03.023

Table 4.

Effect sizes for FA outcomes by region of interest (ROI).

			95% Confidence Interval
Region of Interest	N_Studies	g	Lower	Upper	Z	Test of Homogeneity

Corpus Callosum	10	−0.27	−0.45	−0.09	−2.98^**	χ² (9) = 16.43 (ns)
Splenium	7	−0.16	−0.38	0.06	−1.39	χ² (6) = 7.04 (ns)
Genu	10	−0.42	−0.76	−0.08	−2.42^*	χ² (9) = 31.68^*
Body^{^}	3	0.07	−0.22	0.37	0.47	χ² (2) = 2.64 (ns)
Frontal Cortex^{^^}	6	−0.71	−1.36	−0.07	−2.18	χ² (5) = 36.04^**

Note: Effect size estimates are included for outcomes with greater than two studies.

^*

p < .05

^**

p <.01

g: Hedges’ g.

^{^}

Includes: Body, anterior mid-body, posterior mid-body, isthmus, and rostral body

^{^^}

Includes: AC-PC plane, inferior and superior frontal lobes, frontal white matter (left and right)