Table 3.
Barriers to adherence identified during the adherence assessment conducted during session 1
| Barriers identified | Number of patients |
|---|---|
| Knowledge (TDF domain: Knowledge) | |
| Knowledge issues | 23 |
|
Routine/organisation (TDF domains: Nature of the behaviours; behavioural regulation; memory, attention and decision processes) | |
| Difficulties ordering supplies of medications | 11 |
| No clear routine for taking medications | 9 |
| Total number of patients with routine/organisation barriersa | 17 |
| Forgetting (TDF domains: Memory, attention and decision-making processes; environmental context and resources; behavioural regulation) | |
| Occasional forgetfulness | 30 |
| Frequent forgetfulness | 6 |
| Forgets when away from home | 6 |
| Total number of patients with forgetting barriersa | 39 |
| Practical difficulties (TDF domain: Environmental context and resources) | |
| Dexterity/administration issue | 3 |
| Packaging/formulation issue | 6 |
| Unable to read/understand labels | 2 |
| Difficulty swallowing | 5 |
| Regimen too complex | 1 |
| Total number of patients with practical barriersa | 12 |
| Social support from others (TDF domain: Social influences) | |
| More support required | 5 |
| Beliefs/intentional non-adherence (TDF domains: Beliefs about consequences) | |
| Reasons for missed doses | |
| General concerns about medications | 10 |
| Concerns about generic medicines | 1 |
| Experiencing side effects | 11 |
| Lack of symptoms | 5 |
| Unaware of health consequences | 7 |
| Worried about side effects | 9 |
| Uncertain of benefits | 11 |
| Total number of patients who reported missed dosesa | 32 |
| Motivation (TDF domain: Motivation and goals) | |
| Inappropriate prioritisation | 4 |
| General lack of motivation for taking medicines | 4 |
| Total number of patients with motivation barriersa | 8 |
aPatients may have had multiple different types of barriers identified in this category