Table 2.
Factors Related to Receiving R-Maintenance Versus Observationa
| Characteristic | OR | 95% CI |
|---|---|---|
| FL grade | ||
| Grade 3 vs 1/2 | 0.60 | 0.45-0.81 |
| Unknown vs 1/2 | 0.65 | 0.43-0.97 |
| Ann Arbor stage | ||
| III/IV vs I/II | 1.69 | 1.28-2.24 |
| Geographic region | ||
| Midwest vs West | 2.15 | 1.44-3.20 |
| Northeast vs West | 2.37 | 1.48-3.78 |
| Southeast vs West | 2.10 | 1.42-3.11 |
| Southwest vs West | 2.48 | 1.45-4.23 |
| Practice setting | ||
| Academic vs community | 0.65 | 0.47-0.89 |
Abbreviations: 95% CI, 95% confidence interval; FL, follicular lymphoma; OR, odds ratio; R-maintenance, rituximab maintenance.
a
Results derived from multiple logistic regression. Patients' baseline demographic and clinical characteristics, treatment setting, and induction treatment and its response were evaluated, and nonsignificant factors were removed with backward selection (P >.05).