MEMS is widely used in clinical studies, whereas pill count, self-report, and pharmacy refill are widely used in the context of HIV and AIDS clinical-care settings.
Consumers' adherence to their prescribed medications was measured by manual pill count, self-report of medication adherence, and surrogate biochemical markers of disease control.
Methods include indirect measures (e.g. pill counts, self-reports, electronic monitoring devices and medication refill rates) [10], [25], [26] and direct measures (e.g. observations, drug monitoring and biological markers) [27].
The extent of the relationship between pill counts, self-report of medication adherence and self-efficacy, and other clinical and surrogate biochemical markers of disease control will also be evaluated.
Adherence can be assessed in a variety of ways including pill counts, self-reports or patient diaries, physician reports, electronic monitoring of medication use, biochemical assays and biologic markers, medical record/chart and electronic pharmacy records [ 50, 51].
They also found four studies that considered the effect of educational interventions on adherence to medication advice, in which different measures were used to assess adherence, including tablet counts, self-reports of compliance and knowledge of medication regimens.
Adherence was defined as optimal if pill count or self report was greater than or equal to 95% and sub optimal if pill count or self report was less than 95%.
The most commonly applied techniques in low-income Countries are pills count and self reports, though they often overestimate adherence [ 14].
A frailty index based on a simple count of self reported deficits offering an adequate prediction of mortality, both in clinical and epidemiological settings, is a useful tool to deal with frailty and its consequences, especially in developing countries.
Adherence was assessed at every visit by self report, pill count and pharmacy records.
