Table 3.
Cross-tabulation and chi-squared test results of treatment efficiency in pain relief among patients with knee osteoarthritis.
| Treatment effect | Flurbiprofen | Loxoprofen | Chi-Squared test | P-value |
|---|---|---|---|---|
| mITT analysis* | N = 124 | N = 125 | ||
| 24 h most severe pain level | 14.888 | <0.001 | ||
| Very effective | 44 (35.48) | 27 (21.60) | ||
| Effective | 70 (56.45) | 67 (53.60) | ||
| Not effective | 10 (8.06) | 31 (24.80) | ||
| 24 h resting pain level | 11.691 | 0.003 | ||
| Very effective | 45 (36.29) | 33 (26.40) | ||
| Effective | 49 (39.52) | 36 (28.80) | ||
| Not effective | 30 (24.19) | 56 (44.80) | ||
| 24 h exercise pain level | 7.733 | 0.021 | ||
| Very effective | 47 (37.90) | 31 (24.80) | ||
| Effective | 64 (51.61) | 68 (54.40) | ||
| Not effective | 13 (10.48) | 26 (20.80) | ||
| Current pain level | 14.877 | <0.001 | ||
| Very effective | 43 (34.68) | 19 (15.20) | ||
| Effective | 71 (57.26) | 84 (67.20) | ||
| Not effective | 10 (8.06) | 22 (17.60) | ||
| PP analysis† | N = 115 | N = 119 | ||
| Change in 24 h most severe pain level score | 22.280 | <0.001 | ||
| Very effective | 44 (38.26) | 27 (22.69) | ||
| Effective | 68 (59.13) | 66 (55.46) | ||
| Not effective | 3 (2.61) | 26 (21.85) | ||
| Change in pain level score at 24 h resting time | 14.384 | <0.001 | ||
| Very effective | 44 (38.26) | 33 (27.73) | ||
| Effective | 49 (42.61) | 36 (30.25) | ||
| Not effective | 22 (19.13) | 50 (42.02) | ||
| Change in pain level score during 24 h exercise | 11.313 | 0.004 | ||
| Very effective | 46 (40.00) | 31 (26.05) | ||
| Effective | 63 (54.78) | 67 (56.30) | ||
| Not effective | 6 (5.22) | 21 (17.65) | ||
| Change in current pain level score | 22.976 | <0.001 | ||
| Very effective | 43 (37.39) | 19 (15.97) | ||
| Effective | 70 (60.87) | 82 (68.91) | ||
| Not effective | 2 (1.74) | 18 (15.13) |
Data are presented as n (%). *One patient without complete baseline record in the flurbiprofen cataplasms was excluded. †10 and 6 patients were lost to follow-up in flurbiprofen and loxoprofen groups, respectively. mITT: Modified intention to treat; PP: Per-protocol.