Table 5.

Patient characteristics associated with incorrect administration of drugs and nonadherence

Patient characteristics associated with nonadherence
Sociodemographic characteristics
Younger than 65 years [53, 55]	Older than 84 years [54]	No partner/spouse [56]
No support in drug handling [47]	Female sex [57]	Low education level [58]
High education level [59]	Poor numeracy skills [60]	Low health literacy [15]
Unemployment [31]	Low income [61]	Middle-class income [62]
Busy lifestyle [28]	Alcohol or illicit drug use [31, 63]
Health-related conditions
Cognitive impairment [61, 64]	Physical impairment [13, 65]	Swallowing difficulties [25]
Disease duration less than ten years [58]	Advanced disease [58]	One or more comorbidities [39]
Depression [16]
Experiences
Experienced side effects [66]	Lack of symptom control [61]	Low satisfaction with health care [67]
Attitude towards disease/therapy
Concerns about drug treatment [39]	Feeling stigmatized by disease/drug treatment [66]	Low acceptance of disease [58]
Lack of interest in drug treatment [68]	Lack of knowledge regarding disease/drug treatment [61]	Negative attitude towards drug treatment [70]
Use of alternative medicines [69]