Table 1.

Growth Curve Analyses: Summary of effect of age of depression onset on intercept and slope and the interactions with attrition (N = 135).

	Group		Group × Time		Group × Attrition		Group × Time × Attrition
Variable	β	SE	β	SE	β	SE	β	SE
MADRS	−3.58*	1.64	.34	.76	−1.14	2.48	1.27	1.30
MMSE	−.50	.43	−.18**	.06	−.43	.63	>.01	.11
RNONLGM	−15.07*	7.11	.26	.89	8.68	10.65	.14	2.15
LNONLGM	−12.49	6.71	.35	.92	9.94	10.10	−.86	2.13
RWMLES	−.13	1.05	.04	.08	−.09	.11	.18	.15
LWMLES	−.28	.90	>−.01	.11	1.21	1.34	.25	.19
RGMLES	.02	.09	>.01	>.01	−.13	.15	>−.01	.01
LGMLES	.04	.08	.01	.01	−.13	.12	>−.01	.01
RHIPPOC	.02	.09	−.03*	.01	−.04	.15	−.01	.03
LHIPPOC	.05	.10	−.02	.02	.04	.15	.01	.04
RNONLWM	9.62	7.66	−1.52	.89	−10.61	11.49	3.66	2.08
LNONLWM	−7.09	8.08	−1.26	.93	−10.62	12.11	4.71*	2.13

Group = Early compared to late-onset depression,

^*p <.05,

^**p<.01.

MADRS= Montgomery Asberg Depression Rating Scale

MMSE=Mini–Mental State Examination

R (Right), L (Left)

NONLGM = Gray matter excluding lesions

WMLES = White matter lesions

GMLES = Gray matter lesions

HIPPOC = Hippocampal volume

NONLWM = White matter excluding lesions,

LNONLWM = White matter excluding lesions

Note: The first column `Group' shows if, at baseline, the dependent variables differed between EOD and LOD participants. The second column `Group × Time' reports the interaction of depression group (LOD vs. EOD) over time and indicates if one group changed more than the other group over time. The third column labeled `Group × Attrition' shows if the effect of group differs based on if the participant left the study early. The final column labeled `Group × Time × Attrition' shows if the interaction of group and time was different among participants who left the study early.