Fear of falling in age-related macular degeneration

BMC Ophthalmology

Table 3 Predictors of fear of falling, multivariable linear regression analysis (n = 125)

Variable	Interval	∆ fear of falling score logit units (95% CI)*	p value
Vision‡
Age-related macular degeneration	Present	-0.77 (-1.5 to -0.002)	0.05
Better-eye visual acuity	1 line worse†	-0.15 (-0.28 to -0.03)	0.02
Binocular log contrast sensitivity	0.1 log unit worse	-0.20 (-0.31 to -0.09)	0.001
Non-vision§
Age	5 years older	-0.03 (-0.09 to 0.04)	0.42
Female	vs. male	-0.18 (-1.2 to 0.80)	0.71
Body mass index	1 kg/m² higher	-0.06 (-0.12 to 0.001)	0.04
Grip strength	1 kg less force	-0.07 (-0.13 to -0.02)	0.01
Comorbid illnesses	1 more illness	-0.28 (-0.50 to -0.06)	0.01

LogMAR = logarithm of the minimum angle of resolution, PCO = Posterior Capsular Opacification, MMSE-VI = Mini-mental status examination for the visually impaired.
*Scores are derived from the Rasch analytic model. Higher scores indicate greater ability, or less fear of falling, so factors associated with a negative change in score are associated with greater fear of falling.
†Corresponds to 0.1 logMAR change.
‡Coefficients for vision variables were derived from separate multivariable linear regression models including all non-visual covariates shown.
§Coefficients for non-vision variables were all derived from a single multivariable linear regression model including contrast sensitivity and all non-visual variables shown.

ISSN: 1471-2415