Table 2. Separate participant and companion WHODAS analysis results.

Variable	Model	Group effect	AICc	dAICc	wAICc
Participant	1	Null	3603.69	14.23	0.00
	2	Baseline	3589.46	0.00	0.80
	3	Baseline+longitudinal	3592.18	2.72	0.20
Companion	1	Null	2890.19	22.50	0.00
	2	Baseline	2873.56	5.87	0.05
	3	Baseline+longitudinal	2867.68	0.00	0.95

Abbreviations: AICc, Akaike's information criterion corrected for small-sample bias; dAICc, difference in AICc; wAICc, AICc weight; WHODAS, World Health Organization Disability Assessment Schedule.

The models with smallest AICc values are the best models and are displayed in boldface type.

Models with wAICc closest to 1.0 indicate the best fit and are displayed in boldface type.