Table 4.

Fit statistics for the age-moderated models

Model	Depression symptoms					Cognitive composite					Grip strength
	−2lnL	df	χ2 (df)	p	AIC	−2lnL	df	χ2 (df)	p	AIC	−2lnL	df	χ2 (df)	p	AIC
1. ACE: full age moderationa	34,315.9	4,627				33,433.0	4,541				27,055.4	3,708
2. CE: full age moderation	34,338.8	4,630	22.9 (3)	<.001	16.9	33,501.6	4,544	58.6 (3)	<.001	52.6	27,113.1	3,711	57.7 (3)	<.001	51.7
3. AE: full age moderation	34,317.0	4,630	1.1 (3)	.78	−4.9	33,450.7	4,544	7.7 (3)	.05	1.7	27,059.2	3,711	3.8 (3)	.28	−2.2
3(a). AE: no age moderation	34,338.9	4,634	2.3 (7)	.94	−4.7	33,454.2	4,548	11.2 (7)	.13	−2.8	27,083.0	3,715	27.6 (7)	<.001	13.6
3(b). AE: no squared age moderation	34,318.5	4,632	2.6 (5)	.76	−7.4	33,451.4	4,546	8.4 (5)	.14	−1.6	27,060.6	3,713	5.2 (5)	.39	−4.8
3(c). AE: no age moderation on A	34,319.4	4,632	3.5 (5)	.62	−6.5	33,451.4	4,546	8.4 (5)	.14	−1.6	27,069.3	3,713	13.9 (5)	.02	3.9
3(d). AE: no age squared moderation on A	34,317.2	4,631	1.3 (4)	.86	−6.7	33,451.3	4,545	8.3 (4)	.08	0.3	27,060.2	3,712	4.8 (4)	.31	−3.2
3(e). AE: no age moderation on E	34,322.9	4,632	7.0 (5)	.22	−3.0	33,452.1	4,546	9.1 (5)	.11	−0.9	27,063.2	3,713	7.8 (5)	.17	−2.2
3(f). AE: no age squared moderation on E	34,318.3	4,631	2.4 (5)	.66	−5.6	33,450.8	4,545	7.8 (4)	.10	−0.2	27,060.2	3,712	4.8 (4)	.31	−3.2

Models 3(a) through 3(f) are submodels of model 3

^aBase model for computing χ² difference statistic and AIC