Figure 1.
Estimated rate ratios for falls and 95% confidence intervals (CIs) for individual MMSE scores (relative to next highest MMSE score) down to MMSE score of 22 based on multivariate negative binomial generalized additive regression model. (MMSE of 22 was the last score with more than one observation). In addition to MMSE score, model includes the following covariates: score on an ADL checklist, current exercise, arthritis, and use of assistive device. Horizontal line and gray shaded region give point estimate and 95% CI for average linear effect over this range of MMSE scores.