Odds ratios of recurrent falls for the various types of gait disorders and gait speed.

Abbreviations: GD, Gait disorders; OR, odds ratios. OR are calculated by logistic regression analysis and corrected for age, gender and MMSE-scores. aNumbers too low in the respective category for the calculation of the ORs. bFor continuous variables ORs were calculated for a one standard deviation unit change in variable levels in order to render odds comparable.