Independent variable | OR | 95% CI | χ^{2} |
---|---|---|---|

(i) Model with intact PI* | |||

AIR | 0.33 | 0.22–0.49 | 31.6† |

Intact PI | 1.45 | 1.16–1.83 | 10.2‡ |

(ii) Model with split PI* | |||

AIR | 0.32 | 0.22–0.48 | 32.3† |

Split PI | 1.65 | 1.32–2.06 | 19.7† |

Models are adjusted for age, sex, ethnicity, clinic, BMI, IGT, and S

_{1}. ORs refer to risk of diabetes per SD increase in independent variable.- *
* Areas under receiver operator characteristic curves: model (i) = 0.833; model (ii) = 0.837 (difference = NS).

- †
†

*P*< 0.0001; - ‡
‡

*P*< 0.001.