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Distribution of baseline BPI worst pain and functional item scores
| Item | n | Mean ± SD | Median (min, max) |
|---|---|---|---|
| Worst pain | 906 | 7.52±1.80 | 8 (0,10) |
| General Activity | 894 | 6.39±3.01 | 7 (0,10) |
| Mood | 896 | 5.15±3.25 | 5 (0,10) |
| Walking Ability | 886 | 6.11±3.32 | 7 (0,10) |
| Normal Work | 866 | 6.80±3.20 | 8 (0,10) |
| Relations with Others | 891 | 3.79±3.28 | 3 (0,10) |
| Sleep | 892 | 5.31±3.36 | 5 (0,10) |
| Enjoyment of Life | 887 | 6.00±3.34 | 7 (0,10) |
