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Table 2 Scores at the original BPI and at the revised BPI

From: Can cancer patients assess the influence of pain on functions? A randomised, controlled study of the pain interference items in the Brief Pain Inventory

  Original BPI mean value (SD) Revised BPI mean value (SD) p-value (2-tailed paired samples test)
Severity items    
   3. Pain at its worst 2,9 (3,0) 3,0 (3,3) 0,768
   4. Pain at its least 0,3 (0,7) 0,7 (1,4) 0,058
   5. Pain on the average 1,9 (1,9) 1,9 (2,2) 0,884
   6. Pain right now 1,1 (1,7) 1,4 (2,3) 0,418
Summed pain intensity score 6,2 7,0 0,466
Interference items    
   9. General activity 3,4 (3,8) 4,5 (3,7) 0,055
   10. Mood 1,4 (2,5) 2,5 (3,1) 0,022
   11. Walking ability 2,6 (3,6) 3,4 (3,8) 0,077
   12. Normal work 3,6 (3,9) 4,6 (4,0) 0,140
   13. Relations with other people 1,2 (2,5) 1,6 (2,4) 0,427
   14. Sleep 1,7 (2,7) 2,0 (2,9) 0,425
   15. Enjoyment of life 1,9 (2,9) 2,1 (2,6) 0,556
Summed interference score 16,6 20,6 0,093