Table 3.

Johnson-Neyman Significance Regions for the Conditional Effect of Age at First Scan on Change in Amygdala Volumes across Time in Study

Right Amygdala
Age at 1st Scan	Slope	SE	LCI	UCI	t	p
20.00	−17.55	6.44	−30.17	−4.93	−2.73	.007
19.00	−13.41	5.81	−24.79	−2.02	−2.31	.022
18.00	−9.26	5.19	−19.45	0.92	−1.78	.075
17.00	−5.12	4.60	−14.14	3.90	−1.11	.267
16.00	−0.98	4.04	−8.90	6.94	−0.24	.809
15.00	3.16	3.53	−3.75	10.08	0.90	.370
14.00	7.31	3.08	1.26	13.35	2.37	.018
13.00	11.45	2.74	6.08	16.83	4.17	< .001
12.00	15.59	2.55	10.60	20.59	6.12	< .001
11.00	19.74	2.53	14.78	24.70	7.80	< .001
10.00	23.88	2.70	18.59	29.17	8.85	< .001
9.00	28.02	3.02	22.11	33.94	9.29	< .001
8.00	32.17	3.45	25.41	38.92	9.33	< .001
7.00	36.31	3.95	28.56	44.05	9.19	< .001
6.00	40.45	4.51	31.62	49.28	8.98	< .001
5.00	44.60	5.09	34.61	54.58	8.76	< .001
Left Amygdala
Age at 1st Scan	Slope	SE	LCI	UCI	t	p
20.00	−12.92	6.28	−25.24	−0.60	−2.06	.041
19.00	−10.33	5.67	−21.44	0.79	−1.82	.069
18.00	−7.74	5.07	−17.68	2.20	−1.53	.128
17.00	−5.15	4.49	−13.95	3.66	−1.15	.253
16.00	−2.55	3.95	−10.29	5.18	−0.65	.518
15.00	0.04	3.44	−6.72	6.79	0.01	.992
14.00	2.63	3.01	−3.27	8.53	0.87	.383
13.00	5.22	2.68	−0.03	10.47	1.95	.052
12.00	7.81	2.49	2.93	12.68	3.14	.002
11.00	10.40	2.47	5.56	15.24	4.21	< .001
10.00	12.99	2.63	7.83	18.15	4.93	< .001
9.00	15.58	2.95	9.81	21.36	5.29	< .001
8.00	18.17	3.37	11.58	24.77	5.40	< .001
7.00	20.76	3.86	13.20	28.33	5.38	< .001
6.00	23.35	4.40	14.73	31.98	5.31	< .001
5.00	25.95	4.97	16.20	35.69	5.22	< .001

Note. LCI = 95% lower confidence interval. UCI = 95% upper confidence interval.