Table 2.

Carbamazepine adherence results using plasma and saliva samples.

Variable	Frequency (n (%))
Adherence assessment using plasma sample
under adherence (<80% of therapeutic level)	11 (15.9)
over adherence (>120% of therapeutic level)	6 (8.7)
adherent	52 (75.4)
plasma level equals zero	7 (10.1)
Adherence assessment using saliva sample
under adherence (<80% of therapeutic level)	9 (14.1)
adherent	55 (85.9)
saliva level equals zero	8 (12.5)
Overall
Overall non-adherence (shown by either assessments).	46 (71.9)