Level of Adherence Number of patients MCV values   Hb F values
Evaluable patients Range fL Median fL Evaluable patients Range % Median % 
High adherence 38 38 90-115 105 38 5-15 10
Low adherence 22 20 70-95 81 14 0.0-5.0 2
Normal range of MVC [mean corpuscular volume]: 80-100 femtoliters (fL)
Normal range of Hb F [hemoglobin F level]: 0.8-2.0%
Table 4: Shows MCV and Hb F levels in the study patients divided according to adherence level.