Table 2.

Sensitivity analysis using Generalized Estimating Equations (GEE)

Sample	Term	χ2	Df	p-value
Completers	Intercept	22.83	1	<.001
(N = 159)	Group	4.84	1	.028
	Time	8.60	2	.014
	Group*Time	1.67	2	.434
All Available	Intercept	34.66	1	<.001
(N = 204)	Group	3.85	1	.049
	Time	7.93	2	.019
	Group*Time	2.00	2	.367

Note: Last time point is the referent category, so group effect is estimated at 18 months.