Table 1

An overview of the two models presenting the coefficient of variation (CV%), mean and SD of instrument error and the corresponding estimated prevalence of overweight and obesity (BMI ≥ 25 kg/m2) as mean, SD and the range (minimum-maximum values)
Instrument error Simulations
CV(%) Scales Stadiometers Runs (n) Estimated prevalence of overweight and obesity (%)
Mean SD Mean SD Mean SD (min-max)
Model I
0 0 0 0 0 1000 16.4 0 (16.4 – 16.4)
0.5 0 0.15 0 0.66 1000 16.5 0.17 (15.9 – 17.1)
1.0 0 0.29 0 1.32 1000 16.7 0.24 (16.0 – 17.5)
1.5 0 0.44 0 1.98 1000 17.2 0.28 (16.3 – 18.0)
2.0 0 0.58 0 2.64 1000 17.8 0.35 (16.7 – 19.2)
2.5 0 0.73 0 3.30 1000 18.6 0.39 (17.2 – 19.6)
3.0 0 0.87 0 3.96 1000 19.5 0.41 (18.1 – 20.7)
3.5 0 1.02 0 4.62 1000 20.5 0.46 (19.1 – 22.1)
4.0 0 1.16 0 5.28 1000 21.6 0.51 (19.5 – 23.2)
Model II
2.1*/0.9** 0 0.64 0 1.11 1000 16.9 0.25 (15.8 – 17.7)

* CV of instrument error (%) of scales from the NCG-study.

**CV of instrument error (%) of stadiometers from the NCG-study.

Biehl et al.

Biehl et al. BMC Public Health 2013 13:146   doi:10.1186/1471-2458-13-146

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