| Pooled diagnostic odds ratio (95% CI) | Pooled Numbers needed to diagnose (95% CI) | Positive likelihood ratio (95% CI) | Negative likelihood ratio (95% CI) | ||||
---|---|---|---|---|---|---|---|---|
Conventional ultrasound | ||||||||
 OVERALL | 60.4 | (60.1–60.7) | 1.297 | (1.256–1.342) | 20.55 | (20.14–20.96) | 0.41 | (0.36–0.45) |
 Liver | 285.3 | (284.5–286.2) | 1.126 | (1.076–1.181) | 82.51 | (80.53–84.48) | 0.29 | (0.17–0.40) |
 Kidneys and adrenals | 122.4 | (121.2–123.6) | 1.199 | (1.086–1.338) | 49.07 | (47.34–52.80) | 0.67 | (0.61–0.72) |
 Spleen | 143.7 | (142.8–144.7) | 1.189 | (1.119–1.269) | 51.41 | (49.43–53.40) | 0.43 | (0.33–0.53) |
 Pancreas | 2.7 | ([−1.4]–6.7) | 21.450 | ([−2.674]–2.141) | 1.45 | (0.78–2.13) | 0.55 | ([−0.80]–1.89) |
 Abdominal free fluid | 92.0 | (91.8–92.9) | 1.038 | (1.001–1.077) | 14.68 | (14.04–15.33) | 0.21 | (0.02–0.41) |
 Active bleeding | 0.8 | ([−2.1]–3.7) | 51.723 | ([−13.523]–8.880) | 1.42 | ([−2.28]–5.12) | 0.98 | (0.84–1.13) |
 Solid organ injury | 50.9 | (49.9–51.9) | 1.545 | (1.388–1.743) | 26.22 | (24.77–27.66) | 0.52 | (0.40–0.63) |
 Composite | 5.5 | (5.1–6.0) | 2.918 | (2.368–3.801) | 2.70 | (2.44–2.96) | 0.50 | (0.32–0.67) |
Contrast-enhanced ultrasound | ||||||||
 OVERALL | 3036.9 | (3036.3–3037.5) | 1.038 | (1.030–1.046) | 125.68 | (124.99–126.37) | 0.07 | ([−0.04]–0.19) |
 Liver | 4926.4 | (4924.8–4927.9) | 1.029 | (1.009–1.049) | 378.43 | (375.38–381.47) | 0.06 | ([−0.22]–0.34) |
 Kidneys and adrenals | 6195.5 | (6193.4–6197.5) | 1.026 | (1.005–1.048) | 759.97 | (745.46–765.47) | 0.10 | ([−0.10]–0.30) |
 Spleen | 7142.2 | (7140.5–7143.9) | 1.025 | (1.004–1.046) | 201.14 | (199.07–203.21) | 0.03 | ([−0.45]–0.50) |
 Pancreas | 21.0 | (16.6–25.4) | 3.225 | (1.89–11.013) | 253.00 | (246.44–259.56) | 0.04 | ([−0.78]–0.86) |
 Abdominal free fluid | 29,568.0 | (29,564.9–29,571.1) | 1.012 | (0.994–1.030) | 613.47 | (606.97–619.98) | 0.03 | ([−0.55]–0.62) |
 Active bleeding | 350 | (347.1–352.9) | 1.113 | (0.961–1.321) | 733.62 | (720.3–746.93) | 0.35 | (0.24–0.46) |
 Solid organ injury | 6330 | (6327.9–6332.1) | 1.034 | (1.022–1.047) | 205.16 | (203.04–207.28) | 0.03 | ([−0.70]–0.76) |
 Composite | 233.3 | (232.5–234.2) | 1.207 | (1.172–1.244) | 16.07 | (15.61–16.53) | 0.08 | ([−0.45] –0.61) |