Proportion of patients in compliance (blood level HCQ 500+) by number of previous HCQ blood level assessments.
| No. Prior Visits with an HCQ Assessment | Proportion (%) with Blood Levels of 500 or More* |
|---|---|
| 0 | 382/686 (56) |
| 1 | 379/548 (69) |
| 2 | 347/452 (77) |
| 3 or more | 569/714 (80) |
↵* The p value for the trend toward higher rates as the visit number increased was < 0.0001. HCQ: hydroxychloroquine.