Table 3.

GEE of goal difficulty predicting drinking outcome and goal achievement

Predictors	Goal Achievement NDD					Goal Achievement HDD
	B	SE	OR	95% Confidence Interval of the OR	p	B	SE	OR	95% Confidence Interval of the OR	p
Baseline drinking	−0.05	0.02	0.96	[0.91, 1.00]	.05	0.02	0.02	1.02	[0.98, 1.06]	.45
Time	−0.02	0.12	0.98	[0.77, 1.24]	.86	−0.06	.11	0.94	[0.76, 1.16]	.54
Goal Difficulty	1.08	0.22	2.94	[1.9, 4.5]	<.001	−0.46	0.10	0.63	[0.51, 0.77]	< .001
Goal Difficulty*Time	−0.67	0.23	0.51	[0.33, 0.80]	<.01	0.20	0.12	1.22	[0.97, 1.53]	.09

Note: SE = Standard Error for the B (the slope). OR = Odds Ratio. Parameter estimates for main effects of time and goal difficulty were generated without the interaction term in the model. All variables included in the models were centered at the grand mean.