What is the most important factor for drug compliance?

Patients with gout, osteoporosis and rheumatoid arthritis say trusting their doctor is the most important factor in medication adherence, according to an Australian study.
The results from focus groups, including 67 patients and 15 caregivers across five rheumatology practices in NSW, found 49 factors contributed to drug compliance.
The top three were:
“Participants needed to trust the prescribing doctor to take medications,” the authors wrote in Arthritis Care and Research.