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Table 3 Odds ratios (ORs) with 95% confidence intervals (95% CIs) for exercise in men aged 53-84 years, obtained by applying mixed models with random intercepts that include the interaction between age and cohort, age-squared, and cohort-squared

From: The longitudinal exercise trend among older Swedes aged 53–84 years – a 16-year follow-up study

   Model I Model II
Variable Category OR 95% CI OR 95% CI
Fixed effects      
Rate of change      
Agec (Int) Centred at 67 years 1.013 0.990-1.036 1.016 0.993-1.040
Agec*cohortc   1.0050 1.0030-1.0074 1.0051 1.003-1.008
Initial status      
Cohortc Centred at 1924 1.035 1.010-1.060 1.032 1.007-1.058
Cohortc-squared   1.0018 1.0001-1.0034 1.0019 1.0002-1.0036
Educational level Low-middle    1  
High    1.34 1.08-1.66
BMI (kg/m 2 ) Centred at 24    0.91 0.88-0.94
Smoking Never    1  
Former    1.07 0.86-1.34
Daily    0.59 0.44-0.80
Self-reported health status Good    2.68 2.14-3.36
Poor    1  
Random effects (unstructured)     
Var (constant) 1.13 0.71-1.80 0.89 0.52-1.53
  1. Model II is also adjusted for educational level, BMI, and self-reported health.