Table 3 Difference between measured and reported weight, height, BMI and obesity prevalence by ethnicity and sex^a

Men

(n = 175)

(n = 174)

(n = 143)

p^b

height difference (cm ± sd)

-0.8 (2.3)***

-1.8 (3.4)***

-0.6 (3.7)

<0.001

weight difference (kg ± sd)

-0.1 (3.5)

-0.5 (3.3)

0.0 (3.4)

0.333

BMI difference (kg/m² ± sd)

0.2 (1.4)

0.4 (1.5)***

0.2 (1.6)

0.074

obesity difference (%,95%CI)

2.9 (1.3;6.6)

3.4 (1.6;7.3)

4.2 (1.9;8.9)

0.809

underestimation^c (%,95%CI)

24.2 (18.5;31.1)

12.9 (8.7;18.7)

20.0 (14.3;27.3)

0.511

Women

(n = 239)

(n = 166)

(n = 94)

height difference (cm ± sd)

-0.7 (1.9)***

-2.5 (3.0)***

-2.2 (3.8)***

<0.001

weight difference (kg ± sd)

0.0 (2.4)

-0.4 (2.9)

-0.2 (3.9)

0.203

BMI difference (kg/m² ± sd)

0.2 (1.1)**

0.8 (1.8)***

0.7 (2.3)**

<0.001

obesity difference (%,95%CI)

2.5 (1.1;5.4)

5.5 (2.9;10.1)

5.3 (2.3;11.8)

0.262

underestimation^c (%,95%CI)

13.3 (9.6;18.2)

12.9 (8.6;18.9)

13.1 (7.7;21.4)

0.994