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Table 3 Prevalence odds ratio (pOR) a and relative index of inequality (RII) a in BMI ≥ 30 kg/m 2 and BMI ≥ 35 kg/m 2 by educational level

From: Social and spatial patterns of obesity diffusion over three decades in a Norwegian county population: the HUNT Study

  Men Women
HUNT1 HUNT2 HUNT3 HUNT1 HUNT2 HUNT3
(n=20863) (n=21377) (n=17297) (n=21300) (n=23318) (n=20291)
pOR 95% CI pOR 95% CI pOR 95% CI pOR 95% CI pOR 95% CI pOR 95% CI
BMI ≥ 30 kg/m²
 Primary 2.13 (1.75-2.61) 1.71 (1.51-1.94) 1.99 (1.77-2.23) 2.27 (1.83-2.82) 2.04 (1.81-2.30) 1.85 (1.68-2.04)
 Secondary 1.53 (1.24-1.89) 1.39 (1.25-1.55) 1.53 (1.39-1.67) 1.54 (1.23-1.94) 1.64 (1.47-1.82) 1.53 (1.41-1.66)
 Tertiary Ref.   Ref.   Ref.   Ref.   Ref.   Ref.  
RII 2.60 (2.08-3.26) 1.91 (1.64-2.22) 2.36 (2.05-2.71) 2.71 (2.20-3.34) 2.28 (1.97-2.62) 2.30 (2.03-2.62)
BMI ≥ 35 kg/m²
 Primary 3.22 (1.72-6.02) 1.72 (1.24-2.34) 3.15 (2.42-4.11) 3.33 (2.06-5.37) 2.05 (1.64-2.55) 2.32 (1.97-2.74)
 Secondary 1.33 (0.67-2.62) 1.45 (1.09-1.92) 2.06 (1.63-2.60) 1.89 (1.14-3.17) 1.57 (1.28-1.92) 1.59 (1.38-1.83)
 Tertiary Ref.   Ref.   Ref.   Ref.   Ref.   Ref.  
RII 6.94 (3.41-14.15) 1.87 (1.28-2.74) 3.94 (2.90-5.37) 4.21 (2.78-6.38) 3.44 (2.70-4.38) 3.08 (2.48-3.82)
  1. Men and women 30–69 years old in HUNT1 (1984–1986), HUNT2 (1995–1997) and HUNT3 (2006–2008).
  2. aAge adjusted pOR and RII by 5-years age groups.