Table 2.
Demographic and Plan Characteristics
| Characteristic | Oxycodone CR Group (n = 4,023) | Oxymorphone ER Group (n = 374) | P Value* |
|---|---|---|---|
| Mean (SD) age on index date: | 49.0 (11.6) | 47.3 (10.6) | <0.01 |
| Women n (%) | 1,986 (49.4) | 195 (52.1) | 0.31 |
| Region n (%) | |||
| Northeast | 383 (9.5) | 24 (6.4) | |
| Midwest | 1,016 (25.3) | 78 (20.9) | |
| South | 1,808 (44.9) | 212 (56.7) | |
| West | 816 (20.3) | 60 (16.0) | <0.01 |
| Health Plan n (%) | |||
| HMO | 497 (12.4) | 51 (13.6) | |
| PPO | 428 (10.6) | 42 (11.2) | |
| POS | 2,436 (60.6) | 229 (61.2) | |
| Others | 816 (20.3) | 52 (13.9) | 0.58 |
| Charlson Comorbidity Index n (%) | |||
| CCI = 0 | 1,290 (32.1) | 116 (31.0) | |
| CCI = 1 | 359 (8.9) | 43 (11.5) | |
| CCI = 2 | 1,169 (29.1) | 118 (31.6) | |
| CCI ≥ 3 | 1,205 (30.0) | 97 (25.9) | 0.16 |
*
Pearson chi-square and t-tests were used to compare proportions by drug groups and mean difference, respectively.
CR = controlled release; ER = extended release; HMO = health maintenance organization; PPO = preferred provider organization; POS = point of service; SD = standard deviation.