*p-value < 0.05; **p-value <.001.
TABLE 4 Concordance coefficients between adherence classifications ratings (adherent and non-adherent) obtained by the Global Evaluation of Medication Adherence Instrument – GEMA, the Measurement Adherence to Treatment (MAT) and the Morisky Medication Adherence Scale - 8 item (MMAS- 8), in patients taking oral anticoagulation (n = 127).