Risk factors for cost-related medication non-adherence among older patients with diabetes

Table 2 Results of Multivariate Logistic Regression Analysis of Cost-related Medication Non-adherence

	OR	P value	95%CI
Age
Age 50-64	2.182	< 0.001	1.805-2.638
Age 65-74	Reference	-	-
Age 75-84	0.532	< 0.001	0.403-0.704
Age ≥ 85	0.236	< 0.001	0.131-0.426
Residence
Nursing home residence	0.335	0.011	0.145-0.775
Medicare insurance coverage
No drug coverage	2.824	< 0.001	2.233-3.570
Medicaid coverage
Currently covered by Medicaid	0.341	< 0.001	0.217-0.535
Functional limitations
Activities of daily living
No limitation	Reference	-	-
1 limitation	1.431	0.005	1.113-1.840
2 limitations	1.850	< 0.001	1.348-2.540
3 limitations	1.813	0.003	1.229-2.674
4 limitations	1.796	0.012	1.137-2.838
5 limitations	1.776	0.023	1.083-2.911
6 limitations	1.669	0.162	0.813-3.425
Instrumental activities of daily living
No limitation	Reference	-	-
1 limitation	1.376	0.006	1.094-1.731
2 limitations	1.494	0.014	1.084-2.060
3 limitations	1.243	0.307	0.819-1.887
4 limitations	0.872	0.651	0.482-1.579
Number of hospitalizations
No hospitalization	Reference	-	-
1 hospitalization	1.320	0.010	1.068-1.632
2 hospitalizations	1.437	0.011	1.089-1.898
3 hospitalizations	1.683	0.005	1.168-2.424
4 or more hospitalizations	1.507	0.013	1.091-2.082
Medication use for common conditions
Cholesterol	1.118	0.202	0.942-1.327
Pain	1.090	0.320	0.942-1.327
Asthma	1.295	0.011	1.062-1.578
Stomach	1.141	0.186	0.939-1.388
Sleep	1.077	0.516	0.861-1.347
Anxiety	1.082	0.453	0.880-1.330

Results from multivariate logistic regression analysis.