Table 2.

Odds ratios, 95% CI, and P values for multivariate model of factors associated with diabetes medication adherence

	Odds ratio	95% CI	P
Patient factors
Patient exposure to diabetes therapy
New to therapy vs. continuing therapy	0.39	0.38, 0.40	<0.0001
Patient age-group (years)
25–44 vs. 45–64	0.51	0.49, 0.53	<0.0001
65–74 vs. 45–64	1.27	1.23, 1.30	<0.0001
>75 vs. 45–64	1.41	1.37, 1.44	<0.0001
Patient sex
Male vs. female	1.14	1.12, 1.16	<0.0001
Patient education
Vocational vs. high school equivalent	1.06	0.92, 1.22	0.4105
College grad vs. high school equivalent	1.20	1.17, 1.23	<0.0001
Graduate school vs. high school equivalent	1.41	1.36, 1.46	<0.0001
Patient income
$30k to $60k vs. <$30k	0.93	0.91, 0.95	<0.0001
>$60k vs. <$30k	1.27	1.23, 1.30	<0.0001
Patient geographic region
Midwest vs. West	1.12	1.08, 1.16	<0.0001
Northeast vs. West	1.04	1.00, 1.08	0.0448
South vs. West	1.00	0.97, 1.03	0.9475
Prescription factors
Prescription drug channel: mail vs. retail	2.09	2.04, 2.13	<0.0001
Total pill burden	1.22	1.21, 1.22	<0.0001
Out-of-pocket costs (30 days)	0.89	0.89, 0.89	<0.0001
Prescriber factors
Specialty: endocrinologist vs. primary care	1.01	0.96, 1.07	0.6076
Specialty: other specialist vs. primary care	0.91	0.89, 0.94	<0.0001
Prescriber age	1.002	1.002, 1.003	0.004