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Table 3 Obesity prevalence (and 95% CI) according to the measured and self-reported BMI of the FCS versus the self-reported and corrected BMI of the HIS by background variables

From: Correction of self-reported BMI based on objective measurements: a Belgian experience

Background variables FCS measured FCS self-reported HIS self-reported HIS corrected
  Total 19.4 (16.6–22.2) 14.1 (11.7–16.5) a 12.8 (11.6–14.0) a 17.4 (16.1–18.8)
Region Flemish Region 18.2 (14.8–21.6) 11.3 (8.6–13.9) a 11.4 (9.6–13.2) a 16.1 (14.1–18.2)
Brussels Region 14.1 (4.7–23.5) 13.4 (4.1–22.1) 12.1 (10.3–13.8) 15.2 (13.2–17.1)
Walloon Region 23.5 (18.0–28.9) 19.7 (14.6–24.8) 15.5 (13.5–17.4) a 20.4 (18.3–22.6)
Gender Males 18.6 (14.8–22.3) 14.0 (10.7–17.3) 12.7 (11.0–14.5) a 15.9 (14.0–17.8)
Females 20.3 (16.1–24.4) 14.2 (10.6–17.8) 12.9 (11.3–14.4) a 18.9 (17.0–20.8)
Education Low level 26.8 (22.0–31.5) 19.0 (14.9–23.1) 17.1 (15.3–18.9) a 22.1 (20.1–24.0)
High level 13.8 (10.5–17.1) 10.4 (7.5–13.2) 7.9 (6.4–9.5) a 12.2 (10.3–14.0)
Age group 18–34 years 12.4 (8.3–16.6) 9.2 (5.5–13.0) 7.8 (5.9–9.6) 10.1 (8.1–12.1)
35–50 years 20.8 (16.0–25.5) 17.6 (13.0–22.1) 13.3 (11.3–15.3) a 18.2 (16.0–20.4)
51–64 years 25.0 (19.4–30.6) 14.9 (10.7–19.1) a 17.8 (15.5–20.2) 24.6 (21.9–27.3)
  1. aSignificantly different from FCS measured