TABLE 3.
Results of Logistic Regression Model to Examine Factors Associated with Better Adherence (N = 743)
| Variable | OR (95% CI) | P Value |
|---|---|---|
| Intervention | 0.009a | |
| ≥ 2 follow-up calls | 1.53 (1.02-2.28) | |
| < 2 follow-up calls | 0.65 (0.38-1.10) | |
| No phone call | 1 | |
| Prior PDC | < 0.001a | |
| < 0.50 | 1 | |
| 0.50-0.80 | 3.10 (1.98-4.86) | |
| Age | 1.01 (0.99-1.02) | 0.315 |
| Gender | 0.830 | |
| Male | 1.03 (0.75-1.42) | |
| Female | 1 | |
| Specialty group | 0.180 | |
| Specialist | 0.80 (0.59-1.10) | |
| Primary care | 1 | |
| Previous hospitalization | 0.112 | |
| No | 1 | |
| Yes | 0.74 (0.51-1.07) | |
| Regimen complexity | 1.00 (0.990-1.001) | 0.055 |
| Number of medications at time of intervention | 1.03 (1.002-1.060) | 0.033a |
| CMS risk score | 0.99 (0.83-1.18) | 0.960 |
| Depression | 0.42 (0.24-0.70) | 0.001a |
| Health plan | 0.967 | |
| Low-income subsidy | 1 | |
| Other | 0.99 (0.71-1.38) | |
| Heart failure | 0.62 (0.37-1.04) | 0.073 |
| Stroke | 1.18 (0.53-2.62) | 0.682 |
| Myocardial infarction | 1.55 (0.48-4.99) | 0.461 |
aSignificance level α < 0.05.
CI = confidence interval; CMS = Centers for Medicare & Medicaid Services; OR = odds ratio; PDC = proportion of days covered.