Table 3.
Number of triggers and (potentially preventable) AEs with corresponding PPV.
| Number of triggers (n) | Records (n) | AE present (n) | PPVb for AE (95%CI)a | Potentially preventable AE present (n) | PPVb for potentially preventable AE (95%CI)a |
|---|---|---|---|---|---|
| 1 | 440 | 134 | 0.30 (0.26–0.35) |
45 | 0.34 (0.25–0.42) |
| 2 | 330 | 136 | 0.41 (0.36–0.47) |
52 | 0.38 (0.30–0.47) |
| 3 | 224 | 127 | 0.57 (0.50–0.63) |
38 | 0.30 (0.22–0.38) |
| 4 | 156 | 106 | 0.68 (0.61–0.75) |
42 | 0.40 (0.30–0.49) |
| 5 | 74 | 55 | 0.74 (0.64–0.85) |
26 | 0.47 (0.34–0.61) |
| 6 | 26 | 22 | 0.85 (0.7–0.99) |
9 | 0.41 (0.19–0.63) |
| 7 | 9 | 7 | 0.78 (0.44–1.12) |
4 | 0.57 (0.08–1.07) |
| 8 | 2 | 1 | c | 1 | c |
| 9 | 1 | 1 | c | 0 | c |
a
CI is confidence interval.
b
PPV is positive predictive value,
c
Could not be calculated due to the small number of records with 8 or 9 triggers.