Table 3.

Barrier Codes (N=22) that Emerged During Interviews (Sorted in Descending Order by Code Count)

Code	Short Definition	Code Count	Participant Count
1. Undesirable Side Effect	Not taking medication because of side effect(s)	20	10
2. Routine Interrupted	Not taking medication because of a change in routine	19	13
3. General Forgetting	Forgetting to take medication	18	9
4. Forget So Delay	Forgot to take medication, so delaying it until next dose	13	9
5. Lack Motivation	Lack motivation for taking or refilling medication	11	6
6. Cost Challenging	Not refilling medication due to cost or lack of insurance	10	5
7. Fatigue Pain Illness	Not taking medication because of fatigue, pain, illness	6	3
8. Attitude Mistrust Drugs	Uncomfortable putting drugs/chemicals into body	4	2
9. Misplacement	Not taking medication because it is in an inconvenient place	4	4
10. Getting Medical Procedure	Not taking medication because of medical procedure	3	2
11. Attitude Good Numbers	Lack motivation when feeling fine or HBP numbers are good	3	3
12. Mistrust Medical System	Not taking medication because of mistrust in medical system	3	1
13. Lack Knowledge Importance	Not taking medication because of not knowing the importance	2	1
14. Mood Stress Depression	Not taking medication because of mood, stress, or depression	2	2
15. Other Causes Forgetting	Not taking medication because someone caused them to forget	2	2
16. Lack Routine	Not taking medication because lacking daily routine	2	1
17. Mail Error	Issue with mail prevents participant from taking medication	2	2
18. Attitude Lack Motivation Change Med	Lack motivation for talking to doctor to change medication	1	1
19. Keep Medication Children	Keeping medication away from children results in nonadherence	1	1
20. Transportation Barrier	Not refilling medication due to lack of transportation	1	1
21. Logistics For Price	Burdened by visiting multiple pharmacies for best price	1	1
22. Supplier Recall	Medication recalled by drug manufacturer	1	1

Note: HBP = High Blood Pressure