TABLE 1.
Patient Characteristics (Restriction Year 2013: Disenrolled vs. Remained with the Study-MAPD)
| All Patients in 2013 | Disenrolled During Postrestriction Period | Remained with Plan During Postrestriction Period | P Value (Remained vs. Disenrolled) | |
|---|---|---|---|---|
| Sample: Patients with Pharmacy Claims | ||||
| Sample size (n) | 2,935 | 162 | 2,773 | |
| Baseline demographic characteristics | ||||
| Age at index | ||||
| Mean | 62.1 | 61.4 | 62.2 | 0.457 |
| Median | 62.0 | 61.0 | 62.0 | 0.599 |
| SD | 12.8 | 13.5 | 12.8 | |
| Gender, n (%) | ||||
| Female | 1,754 (59.8) | 97 (59.9) | 1,657 (59.8) | |
| Male | 1,166 (39.7) | 64 (39.5) | 1,102 (39.7) | |
| Unknown | 15 (0.5) | 1 (0.6) | 14 (0.5) | |
| Region, n (%) | ||||
| Midwest | 137 (4.7) | 8 (4.9) | 129 (4.7) | 0.284 |
| Northeast | 113 (3.9) | 10 (6.2) | 103 (3.7) | |
| South | 883 (30.1) | 42 (25.9) | 841 (30.3) | |
| West | 1,679 (57.2) | 92 (56.8) | 1,587 (57.2) | |
| Unknown | 123 (4.2) | 10 (6.2) | 113 (4.1) | |
| Baseline clinical characteristics | ||||
| Sample size, n-linked subset with diagnosis data, n (%) | 1,001 (34.1) | 60 (37.0) | 941 (33.9) | |
| CCI scores | ||||
| Mean | 1.83 | 2.08 | 1.81 | 0.333 |
| Median | 1.00 | 1.50 | 1.00 | |
| SD | 2.11 | 2.32 | 2.10 | |
| Top comorbidities, n (%) | ||||
| Osteoarthritis | 664 (66.3) | 36 (60.0) | 628 (66.7) | 0.284 |
| Hypertension | 487 (48.7) | 34 (56.7) | 453 (48.1) | 0.200 |
| Chronic pain/fibromyalgia | 341 (34.1) | 15 (25.0) | 326 (34.6) | 0.126 |
| Diabetes | 285 (28.5) | 10 (16.7) | 275 (29.2) | 0.037 |
| Dyslipidemia | 269 (26.9) | 23 (38.3) | 246 (26.1) | 0.039 |
| Sleep disorders | 164 (16.4) | 9 (15.0) | 155 (16.5) | 0.765 |
| Myocardial infarction/coronary artery disease | 149 (14.9) | 8 (13.3) | 141 (15.0) | 0.728 |
| Depression | 142 (14.2) | 8 (13.3) | 134 (14.2) | 0.845 |
| Alcohol/drug abuse | 125 (12.5) | 6 (10.0) | 119 (12.6) | 0.548 |
| Cardiac arrhythmia | 114 (11.4) | 5 (8.3) | 109 (11.6) | 0.442 |
| Rheumatologic disease (SLE, RA, AS, PSA) | 114 (11.4) | 4 (6.7) | 110 (11.7) | 0.235 |
AS = ankylosing spondylitis; CCI = Charlson Comorbidity Index; MAPD = Medicare Advantage Prescription Drug plan; PSA = psoriatic arthritis; RA = rheumatoid arthritis; SD = standard deviation; SLE = systemic lupus erythematosus.