Table 2 Misreporting of the mean self-reported BMI by strata, FCS 2014
From: Correction of self-reported BMI based on objective measurements: a Belgian experience
Region | Gender | Education | Age group | Mean measured BMI | Mean self-reported BMI | Abs. diff. a | Rel. diff.b |
|---|---|---|---|---|---|---|---|
Total | Total | Total | Total | 26.17 (25.79–26.55) | 25.20 (24.85–25.56) | 0.96 (0.87–1.06) | 1.038 (1.034–1.042) |
Flemish Region | Males | Low level | 18–34 | 24.41 (22.96–25.85) | 24.21 (22.75–25.66) | 0.20 (− 0.08–0.48) | 1.009 (0.996–1.022) |
35–50 | 27.41 (25.63–29.18) | 26.40 (24.85–27.96) | 1.00 (0.26–0.48) | 1.038 (1.018–1.057) | |||
51–64 | 28.82 (27.68–29.96) | 27.94 (26.85–29.03) | 0.88 (0.43–1.33) | 1.032 (1.017–1.048) | |||
High level | 18–34 | 23.79 (23.08–24.50) | 23.07 (22.41–23.72) | 0.73 (0.44–1.01) | 1.031 (0.019–1.044) | ||
35–50 | 26.28 (25.30–27.27) | 25.60 (24.69–26.52) | 0.68 (0.49–0.88) | 1.027 (1.019–1.034) | |||
51–64 | 26.20 (25.15–27.25) | 25.35 (24.33–26.37) | 0.85 (0.50–1.21) | 1.034 (1.019–1.049) | |||
Females | Low level | 18–34 | 26.02 (23.79–28.25) | 24.60 (22.88–26.32) | 1.42 (0.50–2.33) | 1.056 (1.024–1.088) | |
35–50 | 26.58 (24.33–28.84) | 25.26 (22.99–27.52) | 1.33 (0.76–1.90) | 1.056 (1.034–1.079) | |||
51–64 | 28.51 (25.92–31.10) | 27.00 (24.52–29.48) | 1.51 (1.10–1.92) | 1.057 (1.041–1.073) | |||
High level | 18–34 | 22.87 (21.98–23.76) | 22.10 (21.29–22.91) | 0.77 (0.37–1.17) | 1.034 (1.017–1.052) | ||
35–50 | 24.91 (23.84–25.97) | 23.98 (23.02–24.94) | 0.92 (0.63–1.22) | 1.038 (1.026–1.050) | |||
51–64 | 25.67 (23.96–27.39) | 24.51 (23.06–25.95) | 1.16 (0.73–1.60) | 1.045 (1.030–1.060) | |||
Brussels Region | Males | Low level | 18–34 | 25.60 (21.21–29.99) | 24.93 (21.65–28.20) | 0.67 (− 1.22–2.57) | 1.025 (0.952–1.098) |
35–50 | 25.04 (20.39–29.68) | 24.16 (11.40–36.92) | 0.88 (− 7.24–8.99) | 1.038 (0.691–1.384) | |||
51–64 | 25.03 (19.38–30.68) | 25.19 (20.53–29.85) | −0.16 (− 1.30–0.97) | 0.992 (0.948–1.036) | |||
High level | 18–34 | 24.30 (22.03–26.57) | 22.96 (21.78–24.15) | 1.34 (− 0.31–2.98) | 1.057 (0.986–1.128) | ||
35–50 | 25.39 (24.05–26.54) | 24.62 (23.82–25.42) | 0.67 (−0.22–1.57) | 1.028 (0.993–1.063) | |||
51–64 | 23.99 (19.25–28.74) | 24.19 (20.48–27.91) | −0.20 (− 1.75–1.35) | 0.987 (0.913–1.061) | |||
Females | Low level | 18–34 | 25.67 (18.97–32.37) | 24.98 (17.75–32.21) | 0.69 (− 0.20–1.58) | 1.033 (0.987–1.079) | |
35–50 | 33.54 (6.95–60.14) | 32.17 (6.71–57.63) | 1.38 (−0.58–3.34) | 1.043 (0.976–1.110) | |||
51–64 | 27.35 (17.42–37.28) | 25.60 (17.73–33.46) | 1.75 (− 1.02–4.53) | 1.062 (0.978–1.147) | |||
High level | 18–34 | 22.87 (18.24–27.51) | 22.03 (18.36–25.70) | 0.85 (−0.23–1.92) | 1.033 (1.000–1.066) | ||
35–50 | 25.64 (20.44–30.84) | 24.13 (19.77–28.48) | 1.51 (0.40–2.62) | 1.056 (1.019–1.092) | |||
51–64 | 25.66 (19.95–31.36) | 24.63 (19.23–30.04) | 1.02 (−0.24–2.29) | 1.041 (0.987–1.094) | |||
Walloon Region | Males | Low level | 18–34 | 24.93 (23.71–26.16) | 24.37 (23.31–25.43) | 0.56 (0.16–0.96) | 1.022 (1.007–1.038) |
35–50 | 28.73 (26.21–31.25) | 27.44 (24.78–30.11) | 1.28 (0.83–1.73) | 1.051 (1.029–1.072) | |||
51–64 | 28.02 (26.80–29.25) | 26.89 (25.80–27.98) | 1.14 (0.62–1.65) | 1.043 (1.023–1.062) | |||
High level | 18–34 | 25.28 (23.37–27.19) | 24.69 (22.84–26.53) | 0.59 (0.32–0.86) | 1.022 (1.012–1.033) | ||
35–50 | 28.49 (25.85–31.12) | 27.70 (25.14–30.26) | 0.79 (0.55–1.02) | 1.029 (1.020–1.037) | |||
51–64 | 29.85 (27.21–32.49) | 28.33 (25.95–30.70) | 1.52 (0.84–2.20) | 1.053 (1.033–1.073) | |||
Females | Low level | 18–34 | 25.00 (22.40–27.60) | 24.19 (21.74–26.63) | 0.81 (0.31–1.32) | 1.034 (1.012–1.056) | |
35–50 | 27.62 (25.37–29.88) | 26.30 (24.02–28.58) | 1.32 (0.52–2.12) | 1.051 (1.022–1.081) | |||
51–64 | 27.50 (25.97–29.03) | 26.18 (24.58–27.78) | 1.32 (0.62–2.02) | 1.053 (1.020–1.085) | |||
High level | 18–34 | 24.59 (21.06–28.13) | 23.60 (20.14–27.06) | 0.99 (0.34–1.65) | 1.040 (1.017–1.063) | ||
35–50 | 25.49 (23.30–27.67) | 24.25 (22.26–26.25) | 1.23 (0.81–1.65) | 1.050 (1.034–1.066) | |||
51–64 | 27.71 (25.65–29.77) | 26.61 (24.38–28.83) | 1.10 (0.63–1.58) | 1.043 (1.025–1.061) |