Table 2.
Validity comparisons for Coosto-detected MRSA outbreaks with SO-ZI/AMR as the reference standard
| MRSA outbreaks | Number of days | Validity | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TP | FP | FN | TN | Se | (95% CI) | Sp | (95% CI) | PPV | (95% CI) | NPV | (95% CI) | ||
| All | 10 | 27 | 39 | 722 | 20 | (10–34) | 96 | (95–98) | 27 | (16–42) | 95 | (92–96) | |
| Any hospital | 5 | 13 | 25 | 755 | 17 | (6–35) | 98 | (97–99) | 28 | (13–50) | 97 | (96–97) | |
| University hospital | 0 | 1 | 8 | 791 | 0 | 100 | (99–100) | 0 | 99 | (99–99) | |||
| General hospital | 5 | 12 | 17 | 764 | 23 | (8–45) | 98 | (97–99) | 29 | (14–52) | 98 | (97–98) | |
| Any hospital and unknown location | 6 | 12 | 33 | 747 | 15 | (6–31) | 98 | (97–99) | 33 | (17–56) | 96 | (95–96) | |
| University hospital and unknown location | 0 | 1 | 17 | 783 | 0 | 100 | (99–100) | 0 | 98 | (98–98) | |||
| General hospital and unknown location | 6 | 11 | 25 | 756 | 19 | (7–37) | 99 | (97–99) | 35 | (18–58) | 97 | (96–97) | |
| Nursing home | 1 | 15 | 6 | 778 | 13 | (0–53) | 98 | (97–99) | 6 | (1–31) | 99 | (99–99) | |
| Nursing home and unknown location | 2 | 14 | 14 | 770 | 13 | (2–38) | 98 | (97–99) | 13 | (3–37) | 98 | (98–99) | |
| Other location | 0 | 3 | 3 | 795 | 0 | 100 | (99–100) | 0 | 100 | (100–100) | |||
| Other location and unknown location | 0 | 3 | 12 | 786 | 0 | 100 | (99–100) | 0 | 99 | (98–99) | |||
CI confidence interval, FN false negative, FP false positive, NPV negative predictive value, PPV positive predictive value, Se sensitivity, Sp specificity, TN true negative, TP true positive