Chang et al reported a score to predict nonadherence with once-daily glaucoma medications. This can help to identify a patient who may require closer monitoring and more thorough education. The authors are from Johns Hopkins University, Wilmer Eye Institute, Madigan Army Medical Center, and Georgetown University.
Nonadherence was defined as taking <= 75% of prescribed doses within a window starting 2 weeks after the baseline visit and ending 2 weeks before the next follow-up visit.
Parameters:
(1) age in years
(2) race
(3) self-reported general health
(4) duration of glaucoma medications in years
(5) reported adherence over the past month in percent
(6) follows doctor's orders exactly
Parameter
Finding
Points
age in years
<= 50 years
16
> 50 years
0
race
white
0
black
19
other
0
self-reported general health
excellent
0
good
14
fair or poor
17
duration of glaucoma meds
< 1 year
9
1 to 10 years
14
> 10 years
0
reported adherence
<= 95%
35
> 95%
0
follows orders exactly
agree or strongly agree
0
other
19
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 100
Total Score
Percent Nonadherent
<= 10
3-5%
11 to 20
6-10%
21 to 30
11-17%
31 to 40
18-27%
41 to 50
28-41%
51 to 60
42-57%
61 to 70
50-70%
71 to 80
71-82%
81 to 90
83-89%
91 to 100
90-94%
Performance:
• The area under the ROC curve is 0.75.
To read more or access our algorithms and calculators, please log in or register.
