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Table 2 Performance of the ensembled sex-aggregated XGBoost model on external datasets

From: Waist circumference prediction for epidemiological research using gradient boosted trees

Model:

United Kingdom (National Diet and Nutrition Survey; 2000–2001)

People’s Republic of China (China Health and Nutrition Survey; 2015)

Proportion of Dataset

RMSE

Bias

Proportion of Dataset

RMSE

Bias

Overall

100

7.65

4.63

100

7.1

−1.7

Female

54.7

9.26

7.34

53.5

7.45

−2.02

 Asian

0.4

6.4

4.92

53.5

7.45

−2.02

 Black

1.2

4.81

2.85

 Hispanic

0.9

11.18

9.07

 Other/Mixed

1

11.39

8.18

 White

51.3

9.31

7.47

Male

45.3

5.41

1.73

46.5

6.67

−1.34

 Asian

0.5

4.13

0.34

46.5

6.67

−1.34

 Black

1

6.68

−3.08

 Hispanic

0.2

2.57

2.37

 Other/Mixed

0.8

4.21

1

 White

42.7

5.42

1.87

  1. Values represent sample-weighted mean bias or RMSE across the entire dataset
  2. RMSE root mean squared error