**3. Factors influencing adherence**

After nonadherence is identified, there is a need to identify the underlying cause(s) to which intervention(s) might be tailored. According to World Health Organization (WHO), factors influencing medication adherence in CVD are classified into five different groups: patient-, socioeconomic-, healthcare system-, therapy-, and condition-related factors [14]. Based on the multidimensional nature of adherence, this classification accounts for all relevant factors influencing adherence. This corrects the traditional misconception that only patients are responsible for taking their medication(s) [14].
