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/m 2 ) 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) |