TABLE 4.
Logistic Regression Model Estimating Compliance
| Odds Ratio | SE | P Valuea | |
|---|---|---|---|
| Age category (aged < 65 years as reference) | 1.14 | 1.05 | 0.012 |
| Geographic region (Northeast as reference) | |||
| Midwest | 0.96 | 1.08 | 0.578 |
| South | 0.81 | 1.08 | 0.007 |
| West | 0.95 | 1.09 | 0.550 |
| Health plan type (HMO as reference) | |||
| PPO | 1.02 | 1.07 | 0.750 |
| Other | 1.01 | 1.09 | 0.934 |
| Pre-index osteoporosis | |||
| Pre-index comorbidities | 0.97 | 1.03 | 0.347 |
| Deyo-Charlson Comorbidity Score | 1.12 | 1.05 | 0.020 |
| Inflammatory bowel disease | 0.39 | 1.31 | 0.001 |
| Rheumatoid arthritis | 0.81 | 1.15 | 0.119 |
| Asthma | 0.94 | 1.11 | 0.529 |
| Stroke | 1.12 | 1.11 | 0.278 |
| COPD | 0.93 | 1.12 | 0.496 |
| Renal disease | 0.89 | 1.18 | 0.470 |
| Index medication (Alendronate as reference) | |||
| Risedronate | 0.92 | 1.06 | 0.140 |
| Ibandronate | 1.02 | 1.07 | 0.801 |
| Discontinued | 0.00 | 1.05 | < 0.001 |
Note: Dependent variable is Compliance, Yes = 1, No = 0.
a P values ≤ 0.05 are italicized.
COPD = chronic obstructive pulmonary disease; HMO = health maintenance organization; MPR = medication possession ratio; PPO = preferred provider organization; SE = standard error.