Document Classification

Section Type: RESULTS

Text: Daily diary pain intensity (mean [SD]) was significantly lower in the CR tramadol group than in the IR tramadol group in the last 2 weeks of each phase (completers : VAS, 29. 9 [20. 5] vs 36. 2 [20. 4] mm, P < 0. 001 ; ordinal scale, 1. 41 [0. 7] vs 1. 64 [0. 6], P < 0. 001 ; intent-to-treat [ITT] population : VAS, 32. 5 [22. 9] vs 38. 6 [21. 2] mm, P < 0. 003 ; ordinal scale, 1. 50 [0. 8] vs 1. 72 [0. 7], P < 0. 002).