Table 1.
Demographics and baseline characteristics
| Characteristic | Safety population n = 1487 |
|
|---|---|---|
| n | ||
| Age (years) | 1470 | |
| Mean (SD) | 52.7 (13.62) | |
| Median | 52.0 | |
| Range (minimum–maximum) | 21–92 | |
| Gender, n (%) | 1469 | |
| Men | 630 (43) | |
| Women | 839 (57) | |
| Race, n (%) | 1434 | |
| White | 1240 (87) | |
| Black | 124 (9) | |
| Hispanic | 55 (4) | |
| Asian | 4 (0.3) | |
| Other | 11 (1) | |
| Duration of current pain, n (%) | 1458 | |
| 3–12 months | 120 (8) | |
| >1 year | 1338 (92) | |
| Pain category,a n (%) | ||
| Musculoskeletal | 1437 | 999 (70) |
| Osteoarthritis | 1436 | 349 (24) |
| Nerve-related | 1437 | 330 (23) |
| Cancer-related | 1436 | 12 (0.8) |
| Other | 1436 | 154 (11) |
| Pain location,a n (%) | ||
| Back | 1467 | 1076 (73) |
| Limbs | 1467 | 632 (43) |
| Face/head/neck | 1466 | 245 (17) |
| Torso | 1466 | 117 (8) |
| Other | 1466 | 201 (14) |
| Pain score, mean (SD) | ||
| Average pain | 1474 | 6.2 (2.3) |
| Worst pain | 1475 | 7.8 (2.5) |
| Least pain | 1475 | 4.7 (2.7) |
| Concurrent medical conditions, n (%) | ||
| Depression | 1480 | 622 (42) |
| Anxiety/panic disorder | 1480 | 436 (30) |
| Diabetes mellitus | 1480 | 287 (19) |
| Chronic constipation | 1480 | 148 (10) |
| History of cancer | 1480 | 79 (5) |
| Benign prostatic hypertrophy | 1480 | 44 (3) |
| Nausea | 1480 | 30 (2) |
| Other | 1480 | 624 (42) |
| Participation in 12-step drug treatment program, n (%) | 1480 | 31 (2) |
| Illicit drug use, n (%) | 1444 | 72 (5) |
| Opioid experience (short-acting and/or long-acting), n (%) | 1481 | 1173 (79) |
a
Note: Patient could choose more than one category for etiology, location.
Abbreviation: SD, standard deviation.