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Table 3 Odds ratios (ORs with 95 % CIs) for regular exercise in men aged 16–63 years, obtained by applying mixed models with random intercepts and random slopes

From: The longitudinal age and birth cohort trends of regular exercise among adults aged 16–63 years in Sweden: a 24-year follow-up study

  

Model I*

Model II**

Variable

Category

OR

95 % CI

OR

95 % CI

Fixed effects

     

Rate of change

     

Agec (Int)

Centered at 44 y

1.014

1.004-1.025

1.019

1.008-1.030

Agec*cohort

 

1.0007

1.0002-1.0013

1.0010

1.0004-1.0016

Agec-squared

 

1.0017

1.0011-1.0023

1.0018

1.0012-1.0024

Initial status

     

Cohortc

Centered at 1954

1.04

1.03-1.05

1.03

1.02-1.04

Education

Low-Middle

  

1

 
 

High

  

1.53

1.33-1.76

Smoking

Non-smoker

  

1

 
 

Former

  

0.77

0.66-0.91

 

Daily

  

0.32

0.27-0.39

BMI (kg/m2)

Centered at 24

  

0.94

0.92-0.96

Self-reported health status

Good

  

2.04

1.69-2.47

Poor

  

1

 

Random effects (unstructured)

Variance

Standard error

Variance

Standard error

Var (constant)

2.24

0.22

1.94

0.20

Var (agec)

0.0029

0.0010

0.0027

0.0010

Cov (agec; constant)

0.015

0.108

0.019

0.0098

  1. *Adjusted for age, cohort, age-by-cohort interaction, and age-squared
  2. **Adjusted also for educational level, smoking, BMI, and self-reported health status