Gold standard: | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
FN: | No FN: | FN: | No FN: | FN: | No FN: | FN: | No FN: | FN: | No FN: | |||||||
Claims–Based Definitions: | FN: | 47 | 7 | FN: | 55 | 16 | FN: | 28 | 0 | FN: | 55 | 23 | FN: | 71 | 130 | |
No FN: | 35 | 268 | No FN: | 27 | 259 | No FN: | 54 | 275 | No FN: | 27 | 252 | No FN: | 11 | 145 | ||
Test/Performance Characteristic* | Neutropenia, Primary Position | Neutropenia, Any Position | Neutropenia + Fever,Any Position | Neutropenia or Fever, Any Position | Neutropenia, Fever, or Infection, Any Position | |||||||||||
Patient Classification, % | ||||||||||||||||
True–Positive | 13% (10–17) | 15% (11–19) | 8% (5–11) | 15% (11–19) | 20% (16–24) | |||||||||||
False–Positive | 2% (0–3) | 4% (2–7) | 0% (–––) | 6% (4–9) | 36% (31–42) | |||||||||||
True–Negative | 75% (70–79) | 73% (68–77) | 77% (73–81) | 71% (66–75) | 41% (36–45) | |||||||||||
False–Negative | 10% (7–13) | 8% (5–10) | 15% (11–18) | 8% (5–10) | 3% (1–5) | |||||||||||
Sensitivity, % | 57% (46–68) | 67% (56–77) | 34% (24–45) | 67% (56–77) | 87% (79–94) | |||||||||||
Specificity, % | 97% (96–99) | 94% (91–97) | 100% (–––) | 92% (88–95) | 53% (47–59) | |||||||||||
Positive Predictive Value (PPV), % | 87% (78–95) | 77% (68–87) | 100% (–––) | 71% (61–80) | 35% (29–42) | |||||||||||
Negative Predictive Value (NPV), % | 88% (85–92) | 91% (87–94) | 84% (80–87) | 90% (87–94) | 93% (89–97) | |||||||||||
Accuracy, % | 88% (85–91) | 88% (85–91) | 85% (82–89) | 86% (82–90) | 61% (55–66) | |||||||||||
Likelihood ratio positive (LR+) | 22.5 (12.3–68.5) | 11.5 (7.6–20.4) | ––– | 8.0 (5.6–13.4) | 1.8 (1.6–2.1) | |||||||||||
Likelihood ratio negative (LR–) | 0.4 (0.3–0.6) | 0.3 (0.2–0.5) | 0.7 (0.6–0.8) | 0.4 (0.3–0.5) | 0.3 (0.1–0.4) |