Table 1.
Model selection results
| Covariate | Metabolic indicator |
||||||
|---|---|---|---|---|---|---|---|
| Baseline value | FPI | PI15 | FBG | BG15 | HOMA-B | HOMA-IR | Ins. Index |
|
| |||||||
| Week -1 indicator | □ | ■ | ■ | ■ | |||
| iAs exposure | □ | □ | □ | □ | □ | □ | □ |
| Weight | ■ | ■ | □ | □ | ■ | ■ | |
| Fat | ■ | □ | □ | ||||
| iAs exposure x Fat | ■ | □ | |||||
| iAs exposure x Weight | ■ | □ | |||||
| Weight x Fat | ■ | ||||||
| p-value(s)a | 0.072, 0.003 | 0.547,0.099 | 0.309 | 0.157 | 0.548, 0.002 | 0.249, 0.084 | 0.077 |
Independent variables that remain after model selection are indicated with square symbols. A bold ‘■’ indicates significance at the α=0.05 level, while an unfilled ‘□’ indicates an insignificant retained variable; iAs was always retained regardless of significance
a
Corresponds to a test of significance of the term(s) involving iAs; the p value associated with the main effect is always listed first, followed by the p value associated with the interaction term (when applicable)