Table II.

Distribution of Medication Use and Annual Clinic Visits Between Current Hydroxyurea (HU) Users and Non-users, by parental report (N =173).

Daily Medications*1	Current HU Users (N=61) % of total users	HU Non-users (N=67) % of total non-users
1–2	41	84
3	34	12
4 or more	25	4.5
Annual Clinic Visits*2	Current HU Users (N=63) % of total users	HU Non-users (N=86) % of total non-users
1–2	29	55
3–4	11	23
5 or more	60	22

^*Statistically significant difference between Current HU Users and Non-users. (p<0.001)

¹Missing: N=45

²Missing: N=24