Table 2

Mean (SD) score for pain, physical function, and general health status before surgery (baseline) and at follow-up (6 to 12 months after surgery) in patients undergoing hip replacement according to postoperative treatment with change and difference in change with 95% confidence intervals

Ibuprofen (n=449)Placebo (n=449)
BaselineFollow-upChangeBaselineFollow-upChangeDifference in change, P value
Pain (0-10)5.6 (1.9)1.4 (2.0)4.3 (4.1 to 4.5)5.6 (1.9)1.2 (1.8)4.3 (4.1 to 4.5)-0.1 (−0.4 to 0.2), 0.6
Function (0-10)6.0 (1.9)1.9 (2.0)4.1 (4.0 to 4.2)6.0 (1.8)1.8 (1.9)4.2 (4.1 to 4.3)-0.1 (−0.4 to 0.2), 0.5
SF-36 (PCS30.8 (8.5)45.2 (10.8)14.4 (13.3 to 15.5)31.5 (8.4)45.6 (10.2)14.1 (13.0 to 15.2)0.4 (−1.2 to 1.9), 0.6
SF-36 (MCS)46.2 (12.3)53.9 (10.2)7.7 (6.6 to 8.8)46.3 (12.8)54.6 (10.6)8.4 (7.2 to 9.6)-0.7 (−2.3 to 0.9), 0.4
  • PCS=physical component summary scale score; MCS= mental component summary scale score.