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. Author manuscript; available in PMC: 2022 Sep 1.
Published in final edited form as: Am J Ophthalmol. 2021 Feb 8;229:52–62. doi: 10.1016/j.ajo.2021.02.008

Figure 1:

Figure 1:

LOWESS plot of predicted VSQOL IRT composite scores regressed on VFL in the BSE

LOWESS = Locally Weighted Scatterplot Smoothing; NEI-VFQ-25 = National Eye Institute Visual Function Questionnaire 25-ltem; IRT = Item Response Theory; VFL = Visual Field Loss; MD = Mean Deviation; dB = Decibels; BSE = Better-Seeing Eye

The LOWESS smoothing parameter is 0.6. Gray bars represent 95% confidence limits of the predicted NEI-VFQ-25 IRT composite scores.

Linear regression models were adjusted for age, number of comorbidities, sex (female), education (< 4 years of college), working status (unemployed), income (≤ $20,000), has health insurance (yes), has vision insurance (yes), visual acuity loss (20/40 or worse), and depression (a good bit of the time or more in the last 4 weeks).