≥300 mg/g Albuminuria Present by ACR^{a} | <300 mg/g Albuminuria Present by ACR^{b} | Total | |
---|---|---|---|

Urine dipstick test-positive^{c} | 90 (true positives) | 798 (false positives) | 888 |

Urine dipstick test-negative^{d} | 1 (false negative) | 9947 (true negatives) | 9948 |

Total | 91 | 10,745 |

ACR, albumin to creatinine ratio. Modified from ref. 1, with permission.

↵a Sensitivity = (number of true positives)/(number of true positives + number of false negatives)=99%.

↵b Specificity = (number of true negatives)/(number of true negatives + number of false positives)=93%.

↵c Positive predictive value = (number of true positives)/(number of true positives + number of false positives)=10%.

↵d Negative predictive value = (number of true negatives)/(number of true negatives + number of false negatives)=100%.