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Table 6 β-coefficients (β) with 95% confidence intervals (CIs) for BMI (rate of change), women aged 16–71 years using mixed models with random intercepts and random slopes

From: Longitudinal age-and cohort trends in body mass index in Sweden – a 24-year follow-up study

   Unadjusted Adjusted
Variable Category β 95% CI β 95% CI
Rate of change      
Age-centered Centered at 44 y 0.134 0.128-0.141 0.132 0.125-0.139
Agec*cohortc   0.0001 −0.0006-0.0004 0.00007 −0.0006-0.0004
Agec-squared   −0.0012 −0.0015- -0.0008 −0.0013 −0.0016- -0.0009
Cohort-centered Centered at 1954 0.050 0.044-0.057 0.053 0.046-0.059
Education Low    0  
  Middle    −0.27 −0.17 to 0.11
  High    −0.20 −0.36 to −0.04
Urbanization 1 1    0  
  2    0.34 0.16 to 0.52
  3    0.53 0.36 to 0.71
Physical activity Almost none    0  
  Once a week    −0.16 −0.27 to −0.05
  >Once a week    −0.36 −0.53 to −0.19
Smoking Non-smokers    0  
  Former smokers    0.27 0.10 to 0.44
  Current smokers    −0.36 −0.53 to −0.19
Chronic disease No    0  
  Yes    0.21 0.10 to 0.31
  1. 1Residence in: (1) the three largest cities in Sweden; (2) medium-sized towns (population >90,000); and (3) small towns (population 27,000–90,000) and rural areas.