Table 4.
Evaluation of statistical performance of environmental risk scores (ERSs) in both training dataset (n=6,675) and testing dataset (n=2,862) in NHANES 2003–2014.
| Model without ERSa | Model with ERSa | |||
|---|---|---|---|---|
| Training set (n=6,675) |
Testing set (n=2,862) |
Training set (n=6,675) |
Testing set (n=2,862) |
|
| Log10-transformed waist circumference | ||||
| Percent change in outcome (95% CI)b | -- | -- | 2.1% (1.9%, 2.3%) |
1.9% (1.6%, 2.2%) |
| P-value | -- | -- | <0.0001 | <0.0001 |
| Adjusted-R2 | 0.12 | 0.11 | 0.18 | 0.16 |
| MSE/MSPE | 0.065 | 0.064 | 0.063 | 0.062 |
| Abdominal obesity: Women ≥ 88 cm, Men ≥ 102 cm in waist circumference | ||||
| Odds ratiob (95% CI) |
-- | -- | 1.71 (1.60, 1.84) |
1.57 (1.42, 1.73) |
| P-value | -- | -- | <0.0001 | <0.0001 |
| AUC | 0.71 | 0.71 | 0.75 | 0.74 |
a
All the models were adjusted for age, sex, race/ethinicity, education, smoking status, physical activity, NHANES cycles and urinary creatinine.
b
Effect estimates (percent change, β, odds ratio) are based on a standardized increment which is equivalent to one standard deviation increase in ERS.