Table 3.

Generalized estimating equations (GEEs) with gamma family distribution and log link with Winsorized costs evaluating change over time in costs for the full sample (regardless of treatment group status).

	Direct medical costs			Direct non-medical costs			Indirect costs			Total costs
Predictors	beta	p	95% CI	beta	p	95% CI	beta	p	95% CI	beta	p	95% CI
Time	0.82	0.13	0.63–1.06	0.60	0.04	0.37–0.97	0.42	0.006	0.22–0.78	0.72	0.01	0.55–0.93
Adolescent race	1.20	0.29	0.86–1.69	0.90	0.79	0.40–2.02	0.48	0.10	0.20–1.15	1.01	0.98	0.67–1.51