Table 1 Odds ratios for achieving ACR response after 3 months for patients treated with initial combination therapy compared with initial monotherapy
| Method 1 | Method 2 (Visser model) | |||
|---|---|---|---|---|
| Odds ratio | 95 % confidence interval | Odds ratio | 95 % confidence interval | |
| Poor prognosis patients | ||||
| ACR20 | 3.94 | 2.09 to 7.43 | 10.00 | 3.41 to 29.32 |
| ACR50 | 6.29 | 3.00 to 13.20 | 9.74 | 3.22 to 29.49 |
| ACR70 | 7.08 | 2.31 to 21.70 | 9.33 | 1.97 to 44.21 |
| Nonpoor prognosis patients | ||||
| ACR20 | 3.12 | 1.73 to 5.63 | 2.72 | 1.67 to 4.45 |
| ACR50 | 6.25 | 3.08 to 12.70 | 5.39 | 2.98 to 9.74 |
| ACR70 | 6.39 | 1.84 to 22.23 | 4.99 | 1.85 to 13.46 |