Table 2 Test characteristics of the ultrasound protocol and recursive partitioning model (TICS-Rule).
From: Development of an ultrasound-based clinical decision rule to rule-out diverticulitis
Sensitivity | Specificity | PPV | NPV | LR+ | LR- | ||
|---|---|---|---|---|---|---|---|
Ultrasound Protocol | No Diverticulitis | 94.7% (86.9–98.5) | 77% (65.8–86) | 80.7% (70.9–88.3) | 93.4% (84.1–98.2) | 4.1 (2.7–6.3) | 0.07 (0.03–0.18) |
Simple Diverticulitis | 90.6% (79.3–96.9) | 76% (66.3–84.2) | 67.6% (55.5–78.2) | 93.6% (85.7–97.9) | 3.8 (2.6–5.5) | 0.12 (0.05–0.29) | |
Complicated Diverticulitis | 54.5% (32.2–75.6) | 96.1% (91.1–98.7) | 70.6% (44-89.7) | 92.4% (86.5–96.3) | 13.9 (5.4–35.5) | 0.47 (0.30–0.75) | |
Recursive Partitioning Model (TICS-Rule) | No Diverticulitis | 67.6% (55.7–78) | 98.7% (92.8–100) | 98% (89.6–100) | 75.5% (65.8–83.6) | 50.7 (7.2–357) | 0.33 (0.24–0.46) |
Simple Diverticulitis | 52.8% (38.6–66.7) | 89.6% (81.7–94.9) | 73.7% (56.9–86.6) | 77.5% (68.6–84.9) | 5.1 (2.7–9.6) | 0.53 (0.39–0.71) | |
Complicated Diverticulitis | 100% (84.6–100) | 70.1% (61.3–77.9) | 36.7% (24.6–50.1) | 100% (95.9–100) | 3.34 (2.6–4.4) | 0 (0-undef)) | |
