Table 3.

Logistic Regression Models Predicting Weekly IVR-Reported Medication Nonadherence^a

Predictor variable	AORb	95 % CI	p value
Full model (n = 1,386 calls with 98 patients)
Low health literacy	0.50	0.20–1.30	0.156
Study durationc	0.44	0.13–1.48	0.184
Distressd	0.96	0.37–2.51	0.933
Arme	0.72	0.24–2.18	0.562
Week	0.96	0.91–1.00	0.077
Distress X Week	1.01	0.99–1.15	0.082
Arm X Week	1.03	0.96–1.11	0.385
Distress X Arm	1.64	0.29–9.41	0.576
Distress X Arm X Week	0.72	0.56–0.93	0.010
Follow-up model, distressed group (n = 450 calls with 33 patients)
Low health literacy	0.09	0.03–0.29	<0.001
Study duration	0.79	0.11–5.81	0.814
Arm	2.24	0.24–20.95	0.480
Week	1.02	0.96–1.08	0.629
Arm X Week	0.72	0.55–0.93	0.013

^aNonadherence coded as 1, for consistency with MMAS

^bAdjusted odds ratio

^cSix-month study duration coded as 1

^dDistressed group coded as 1

^eCP group coded as 1