Table 2.
Multivariate Analysis Exploring the Mediators of Visual Field Loss and Moderate-to-Vigorous Physical Activity in Glaucoma
| Variable | Interval | Model 0: | Model 1: | Model 2: | Model 3: |
|---|---|---|---|---|---|
| Univariate Modelsa | Multivariate Models | Model 1+ FoF | Model 1+ Driving | ||
| VF loss MD | 5 db worse | 0.89 (0.71, 0.89) | 0.74 (0.67, 0.82) | 0.78 (0.70, 0.89) | 0.70 (0.63, 0.79) |
| Fear of Fallingb | Person measure score | 1.3 (1.2, 1.40) | -- | 1.17 (1.08, 1.27) | -- |
| Limited driving | vs Driving without limitation | 0.80 (0.54, 1.19) | -- | -- | 1.43 (1.00, 2.04) |
| Not driving | vs Driving without limitation | 0.98 (0.64, 1.49) | -- | -- | 2.04 (1.32, 3.15) |
| Age | 5 y older | 0.60 (0.51, 0.71) | 0.65 (0.56, 0.76) | 0.67 (0.58, 0.78) | 0.63 (0.54, 0.74) |
| Female | vs Male | 0.74 (0.53, 1.03) | 1.01 (0.75, 1.36) | 1.27 (0.92, 1.75) | 0.86 (0.64, 1.16) |
| AA | vs Non-AA | 0.28 (0.20, 0.39) | 0.40 (0.28, 0.57) | 0.37 (0.26, 0.52) | 0.35 (0.25, 0.49) |
| Education | 4 y less | 2.13 (1.71, 2.64) | 1.20 (0.97, 1.48) | 1.17 (0.96, 1.44) | 1.18 (0.96, 1.45) |
| Comorbidity | 1 more Illness | 0.69 (0.62, 0.76) | 0.78 (0.71, 0.86) | 0.89 (0.80, 0.99) | 0.78 (0.71, 0.86) |
MVPA = moderate-to-vigorous physical activity; VF = visual field, MD = mean deviation; better eye; y = years, FoF = fear of falling; vs = versus; AA = African-American
Values in bold indicate p < 0.05
aMVPA is the dependent variable in each model. Model 0 contains bivariate models of each covariate with MVPA. Model 1 contains CS, Age, Sex, Race, Education, and Comorbidity as independent variables. Model 2 adds FoF as a possible mediator between CS and MVPA
bPerson measure scores are derived from Rasch analytic model. Higher scores indicate greater ability, or less fear of falling