Fig. 2

Generalized estimating equation analysis of homebound status predicting falls. The main analysis is represented by the red line with a circle dot. Sensitivity analysis is represented by the green line with a square dot and the blue line with a triangle dot. Model 1: independent variables of interest; Model 2: Model 1 + demographic covariates (age, sex, education, race/ethnicity, living arrangement); Model 3: Model 2 + health-related covariates (BMI, vigorous activity, pain, hospitalization, depressive symptoms, dementia, number of ADL/IADL impairments and chronic illness, hearing and vision impairment)