Table 2. Statistical association between ergothioneine concentrations and risk of preeclampsia after allowing non-linearity and adjusted for age and BMI.
| Factors in the model | Chi square | Degree of freedom | P-value |
|---|---|---|---|
| Ergothioneine | 7.14 | 2 | 0.0282 |
| Non-linear component of ergothioneine | 6.31 | 1 | 0.0120 |
| Age | 0.02 | 1 | 0.8866 |
| BMI | 9.62 | 1 | 0.0019 |
| Total | 16.36 | 4 | 0.0026 |