Table III.
Adolescents’ Hydroxyurea and Clinic Appointment Adherence
| Hydroxyurea adherence measures | Participants n = 26 (n, %) |
|---|---|
| % of days the participant had access to hydroxyurea by electronic prescription data | |
| <20% | 5 (19.2) |
| 20–39% | 0 (0) |
| 40–59% | 5 (19.2) |
| 60–79% | 4 (15.4) |
| 80–100%a | 12 (46.2) |
| Participants’ MCV | |
| <80 fl | 1 (3.8) |
| 80–101 fl | 19 (73.1) |
| ≥102 fla | 6 (23.1) |
| Participants’ HbF | |
| <10% | 1 (3.8) |
| 10–15% | 3 (11.5) |
| ≥16%a | 22 (84.6) |
| Multi-method hydroxyurea adherence | |
| None of the measures met the threshold | 3 (11.5) |
| 1 of the measures met the threshold | 9 (34.6) |
| ≥2 of the measures met the thresholda | 11 (42.3) |
| All 3 of the measures met the thresholda | 3 (11.5) |
| Appointment adherence | Participants n = 29 (n, %) |
| Number of appointments attended in the year prior to study entry | |
| 1 | 1 (3.4) |
| 2 or 3 | 14 (48.3) |
| ≥4 (or at least as many as required by his/her provider)a | 14 (48.3) |
a
Threshold used to define adherence.