Figure 3.

Results from path analysis for the mediator variable balance problems: KORA-Age study (2008-2011).

Note. Maximum grip strength was classified into three groups using tertile values as cutoff points, falls and balance problems as dichotomous variables with the values 0 for participants without and 1 for those with one or more falls and balance problems, respectively. Results refer to the model with adjustment for age and gender at follow-up. Alpha, tau, tau prime, and beta are the standardized significance coefficients from the logistic regression analysis: (a) analysis of the mediator as outcome and grip strength as the independent variable (alpha); (b) analysis of falls as the outcome and grip strength as the independent variable (tau); and (c) analysis of falls as the outcome and grip strength as the independent variable adjusted for the mediator variable (tau prime, beta).