Validation of the Adherence Barriers Questionnaire – an instrument for identifying potential risk factors associated with medication-related non-adherence

Table 5 Spearman rank correlation between ABQ (and subscales), the modified AMRS score and the TTR

	Modified adherence to refills and medications scale (ARMS)	Time in therapeutic range (TTR)
	N = 401	N = 371
ABQ	0.438*	- 0.161***
Subscale 1 (intentional barriers)	0.430*	- 0.127***
Subscale 2 (medication-/health care system-related barriers)	0.326*	- 0.156**
Subscale 3 (unintentional barriers)	0.317*	- 0.103***

*p < 0.001 (2-tailed).
**p < 0.01 (2-tailed).
***p < 0.05 (2-tailed).
ABQ: Adherence Barriers Questionnaire, ARMS: Adherence to Refills and Medications scale, TTR: Time in Therapeutic Range.

ISSN: 1472-6963