CGM glucose readings ≤70 mg/dL on prior day (%) | n of days | Sensitivity^{*} | Specificity^{†} | False alarm^{‡} | PPV^{§} | ||
---|---|---|---|---|---|---|---|

Total | No SH | SH | |||||

0 | 2,009 | 1,999 | 10 | ||||

>0 | 3,286 | 3,269 | 17 | 63% | 38% | 99.5% | 0.5% |

≤5 | 3,292 | 3,278 | 14 | ||||

>5 | 2,003 | 1,990 | 13 | 48% | 62% | 99.4% | 0.7% |

≤15 | 4,613 | 4,596 | 17 | ||||

>15 | 682 | 672 | 10 | 37% | 87% | 98.5% | 1.5% |

≤30 | 5,184 | 5,162 | 22 | ||||

>30 | 111 | 106 | 5 | 19% | 98% | 95.5% | 4.5% |

All | 5,295 | 5,268 | 27 |

↵*Sensitivity, Proportion of true SH events where the CGM indices correctly predicted the prior days as positive.

↵†Specificity, Proportion of days without SH where the CGM indices correctly predicted the prior days as negative.

↵‡False alarm, Proportion of days with CGM indices predicted as positive where there were no SH in the following days.

↵§PPV, Proportion of days with CGM indices predicted as positive where there were SH events in the following days (this is 100% minus the false alarm rate).