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Table 2 Incidence rate ratios of being a current non-driver, NHATS, 2011–2014a

From: Association between baseline frailty and driving status over time: a secondary analysis of The National Health and Aging Trends Study

  Unadjusted Adjustedb
Time point Incidence rate ratioc (95% CI) Incidence rate ratioc (95% CI)
2011 4.01 (3.44–4.67) 2.19 (1.87–2.56)
2012 3.76 (3.27–4.31) 2.05 (1.78–2.36)
2013 3.52 (3.09–4.01) 1.92 (1.67–2.20)
2014 3.30 (2.90–3.77) 1.80 (1.56–2.07)
Frailty x Time p = 0.001 p = 0.001
  1. aAnalyses of weighted data from the National Health and Aging Trends Study. Each column represents one model
  2. bMultivariable Poisson Regression GEE model adjusted for gender, age, race, living arrangement, dementia, and comorbidity accounting for clustering
  3. cThe first row (2011) cross-sectional values are prevalence ratio estimates