Table 2.
Mean change in BPI-SF items by study visit [analgesia study; LOCF; extension population (N = 379)]
| BPI-SF item |
||||
|---|---|---|---|---|
| Visit | Average pain over the last 24 h (0–10) Mean ± SD | Sleep quality item (0–10) Mean ± SD | Pain subscale (0–40) Mean ± SD | Interference subscale (0–70) Mean ± SD |
| End of double-blind study | 3.8 ± 1.48 | 3.1 ± 2.67 | 15.3 ± 6.09 | 21.6 ± 13.10 |
| Week 1 | 3.9 ± 1.52 | 2.9 ± 2.52 | 15.3 ± 6.18 | 21.2 ± 12.54 |
| 3 months | 3.8 ± 1.60 | 3.0 ± 2.48 | 14.7 ± 6.55 | 22.2 ± 12.80 |
| 6 months | 3.7 ± 1.59 | 3.2 ± 2.50 | 14.6 ± 6.67 | 22.4 ± 12.77 |
| 9 months | 3.7 ± 1.66 | 3.3 ± 2.64 | 14.8 ± 6.70 | 23.0 ± 13.23 |
| 12 months | 3.8 ± 1.72 | 3.1 ± 2.48 | 14.8 ± 6.93 | 23.0 ± 13.00 |
BPI-SF, Brief Pain Inventory – Short Form; LOCF, last observation carried forward; SD, standard deviation.