Table 2.

Descriptive statistics for the two age bins and age differences in MWF and geomT_2IEW within peak-related age bins (prior and after peak)

Dependent variable	Region	Peak age (years)	Before peak					After peak
			N (% females)	Overall adjusted R2	b	ß	P	N (% females)	Overall adjusted R2	b	ß	P
MWF	GENU-1	49.4	291 (59)	0.35	0.22	0.59	<0.001	104 (62)	0.02	−0.07	−0.14	0.15
	GENU-2	47.5	290 (59)	0.23	0.15	0.48	<0.001	105 (62)	0.04	−0.07	−0.23	0.02
	GENU-3	48.9	291 (59)	0.25	0.15	0.50	<0.001	104 (62)	0.02	−0.06	−0.20	0.04
	BODY-1	52.1	297 (59)	0.24	0.12	0.49	<0.001	98 (61)	0.01	−0.06	−0.18	0.08
	BODY-2	51.9	295 (59)	0.25	0.15	0.51	<0.001	100 (61)	0.02	−0.07	−0.19	0.06
	BODY-3	50.3	291 (59)	0.34	0.20	0.59	<0.001	104 (62)	0.01	−0.06	−0.18	0.07
	ISTH	57.2	307 (59)	0.31	0.14	0.56	<0.001	88 (61)	0	0.02	0.04	0.73
	SPL-1	60.2	317 (59)	0.39	0.16	0.62	<0.001	78 (63)	0	0.02	0.03	0.79
	SPL-2	59.6	315 (59)	0.46	0.22	0.68	<0.001	80 (61)	0.01	0.05	0.07	0.51
	SPL-3	59.9	316 (59)	0.36	0.20	0.60	<0.001	79 (62)	0	0.08	0.09	0.42
geomT2IEW	BODY-3	45.1	284 (58)	0.30	0.0022	0.56	<0.001	111 (62)	0.04	−0.00073	−0.24	0.01
	SPL-2	62.6	327 (59)	0.43	0.0018	0.66	<0.001	68 (62)	0.01	−0.00011	−0.16	0.90
	SPL-3	53.74	298 (59)	0.32	0.0024	0.57	<0.001	97 (61)	0	0.00020	0.028	0.78