Skip to main content
. Author manuscript; available in PMC: 2013 Sep 1.
Published in final edited form as: Am J Ophthalmol. 2012 Jul 11;154(3):436–444.e2. doi: 10.1016/j.ajo.2012.03.039

Table 4.

Predictors for depression screener PHQ-9 score ≥10 among participants with self-reported glaucoma, adjusted for potential confoundersaObjective measures

OR (95% CI) P valueb
Objective measures
LogMar BCVA, worse eye 13.5 (0.553-328.2) 0.11
VCDR, better eye 13.9 (0.281-686.6) 0.18
Any visual field defect 1.06 (0.660-1.70) 0.81
Binocular visual field defect 1.25 (0.671-2.35) .465
Visual field defect classification, worst eye Normal 1.00
Early 0.711 (0.474-1.07) 0.35
Moderate 0.803 (0.554-.17)
Severe 1.06 (0.544-2.06)
Number of topical glaucoma medications 0 1.00
1 1.29 (0.282-5.92) 0.94
2 0.756 (0.083-6.85)
3 2.13 (0.120-37.9)
Use of topical beta blockers 1.21 (0.305-4.78) .782

General self-reported vision status
General condition of eyesight Excellent or Good 1.00
Fair 2.85 (0.899-9.03) 0.12
Poor or Very Poor None of the time or a little of the 4.65 (0.663-32.6)
Time spent worrying about eyesight time 1.00
Some of the time 4.03 (1.51-10.8) 0.005
Most of the time or all of the time 8.36 (2.44-28.7)
Vision limits how long a subject can
perform activities
None of the time or a little of the
time
1.00
Some of the time 4.43 (0.772-25.4) 0.001
Most of the time or all of the time 9.27 (3.23-26.6)
Has trouble seeing even with glasses or contact s 3.12 (1.38-7.06) 0.008

Self-reported vision-related difficulty
Total score on vision difficulty questions 1.15 (1.06-1.26) 0.002
Difficulty reading ordinary newsprint No difficulty 1.00
A little difficulty 1.94 (0.233-16.2)
Moderate difficulty 3.75 (0.762-18.4) 0.13
Extreme difficulty 7.59 (1.42-40.5)
Unable to do because of eyesight 3.96 (0.601-26.1)
Difficulty doing close work No difficulty 1.00
A little difficulty 3.74 (0.742-18.9)
Moderate difficulty 2.30 (0.457-11.5) 0.005
Extreme difficulty 17.3 (3.83-78.4)
Unable to do because of eyesight 1.95 (0.204-18.7)
Difficulty with steps No difficulty 1.00
A little difficulty 4.98 (1.44-17.2)
Moderate difficulty 10.1 (2.32-43.7) <.001
Extreme difficulty 41.7 (12.7-136.7)
Unable to do because of eyesight 3.31(0.169-64.6)
Difficulty with side vision No difficulty 1.00
A little difficulty 3.82 (1.11-13.2)
Moderate difficulty 2.14 (0.482-9.48) 0.001
Extreme difficulty 8.29 (1.26-54.5)
Unable to do because of eyesight 12.8 (1.41-117.1)
Difficulty finding things on crowded shelf No difficulty 1.00
A little difficulty 1.92 (0.809-4.56)
Moderate difficulty 1.29 (0.312-5.34) 0.06
Extreme difficulty 12.1 (2.15-68.7)
Unable to do because of eyesight 1.73 (0.140-21.2)
Difficulty driving during the daytime No difficulty 1.00
A little difficulty 5.64 (0.529-60.1)
Moderate difficulty 103.4 (7.16-1493.3) 0.04
Extreme difficulty 17.8 (0.195-1617.9)
Unable to do because of eyesight 3.93 (0.148-104.0)

PHQ-9 = Patient Health Questionnaire 9, a self-administered version of the depression module of the Primary Care Evaluation of Mental Disorders (PRIME-MD) diagnostic instrument; BCVA = best corrected visual acuity; VCDR = vertical cup to disk ratio

a

All odds ratios are calculated from multivariate logistic regression models and are adjusted for the following confounders: age, sex, race, education level, income, general health condition, and comorbidities of stroke, thyroid disease, emphysema, liver disease, and cancer.

b

P values are from design-adjusted Wald test.