Treatment for glaucoma: adherence by the elderly.
OBJECTIVE
The purpose of this study was to determine the extent of nonadherence to treatment for glaucoma among elderly patients.


METHODS
This was a retrospective cohort study of 2440 patients older than age 65 who were enrolled in the New Jersey Medicaid Program and who were newly initiated on a topical agent for the treatment of glaucoma. Two patient-specific measures of nonadherence were employed: (1) no filled prescription for any glaucoma medication over a 12-month period after the initiation of therapy and (2) number of days without therapy for glaucoma during this 12-month period.


RESULTS
By the first measure, 569 patients (23%) were found to be nonadherent. The mean number of days without therapy during the study year was 112. Factors associated with nonadherence included the use of glaucoma medication requiring more than 2 administrations per day and the presence of multiple other medications in the patient's drug regimen. Patients started on multiple glaucoma medication were more adherent than those started on a single agent. Age and sex were not found to be predictors of nonadherence.


CONCLUSIONS
Substantial nonadherence was found to be common in this population. More attention to the issue of nonadherence could result in important benefits in the preservation of sight.
Gurwitz
J H
JH
Department of Medicine, Brigham and Women's Hospital, Boston, MA.
Glynn
R J
RJ
Monane
M
M
Everitt
D E
DE
Gilden
D
D
Smith
N
N
Avorn
J
J
D000368:Aged; D000369:Aged, 80 and over; D016009:Chi-Square Distribution; D015331:Cohort Studies; D003710:Demography; D004334:Drug Administration Schedule; D005260:Female; D005901:Glaucoma / Q000188:drug therapy*; D006801:Humans; D008297:Male; D016017:Odds Ratio; D009883:Ophthalmic Solutions / Q000008:administration & dosage*; D010349:Patient Compliance; D012044:Regression Analysis; D012189:Retrospective Studies; D012646:Self Administration
D009883:Ophthalmic Solutions