Distribution of patients according to initial fentanyl dose and prior opioid exposure
| Prior opioid exposure, mg/d of oral morphine equivalent | Initial fentanyl patch dose, μg/h; no. (%) of patients* | |||||
|---|---|---|---|---|---|---|
| 12 n = 1293 | 25 n = 7739 | 50 n = 1459 | 75 n = 363 | 100 n = 209 | Total n = 11 063 | |
| No exposure | 301 (10.4) | 2276 (78.3) | 248 (8.5) | 51 (1.8) | 31 (1.1) | 2907 |
| 1–29 | 429 (13.9) | 2287 (73.9) | 315 (10.2) | 47 (1.5) | 16 (0.5) | 3094 |
| 30–59 | 308 (15.7) | 1382 (70.4) | 223 (11.4) | 38 (1.9) | 13 (0.7) | 1964 |
| 60–179 | 215 (10.3) | 1412 (67.6) | 358 (17.1) | 77 (3.7) | 27 (1.3) | 2089 |
| 180–269 | 18 (4.4) | 191 (46.7) | 134 (32.8) | 43 (10.5) | 23 (5.6) | 409 |
| 270–359 | 9 (4.8) | 71 (37.8) | 57 (30.3) | 40 (21.3) | 11 (5.9) | 188 |
| ≥ 360 | 13 (3.2) | 120 (29.1) | 124 (30.1) | 67 (16.3) | 88 (21.4) | 412 |
↵* Percentages are based on row totals. Values in blue screened cells represent inadequate prior opioid exposure.