Table 1.
Positive predictive values according to The Brighton Collaboration case classification by discharge code position, and by calendar year
| Positive Predictive Values | ||||
|---|---|---|---|---|
| Casesn | Level 1% (95% CI) | Level 1- Level 2% (95% CI) | Level 1-Level 2-Level 3 % (95% CI) | |
| Discharge code position | ||||
| 1st | 148 | 86.5 (79.9–91.5) | 93.2 (87.9–96.7) | 94.6 (89.6–97.6) |
| 1st or 2nd | 149 | 86.6 (80.0–91.6) | 93.3 (88.0–96.7) | 94.6 (89.7–97.7) |
| Any | 151 | 85.4 (78.8–90.6) | 92.7 (87.3–96.3) | 94.0 (89.0–97.2) |
| Calendar year1 | ||||
| 2007 | 44 | 81.8 (67.3–91.8) | 90.9 (78.3–97.5) | 95.5 (84.5–99.4) |
| 2008 | 30 | 86.7 (69.3–96.2) | 93.3 (77.9–99.2) | 93.3 (77.9–99.2) |
| 2009 | 25 | 84.0 (63.9–95.5) | 92.0 (74.0–99.0) | 92.0 (74.0–99.0) |
| 2010 | 28 | 89.3 (71.8–97.7) | 92.9 (76.5–99.1) | 92.9 (76.5–99.1) |
| 2011 | 24 | 87.5 (67.6–97.3) | 95.8 (78.9–99.9) | 95.8 (78.9–99.9) |
1
Any diagnosis position.
Abbreviations: Positive Predictive Value (PPV); Confidence interval (CI).