When evaluating the quality of programs, services, and products, patient satisfaction is a useful patient
reported outcome. It serves four interrelated but distinct purposes, permitting:
1) evaluation of the acceptability of care or treatments from the patients’ perspective;
2) comparison of health-care programs or treatment options;
3) identification of service or treatment approaches that require change;
4) screening of patients who are likely to become nonadherent to care plans or medication regimens For these reasons, satisfaction measures are often used to plan health-care delivery systems and develop pharmaceutical products or medical devises.