Table 2

Performance analysis of test characteristics for RR (≥22 and 24 thresholds), MPTT, MPTT-24 and the existing UK Military Sieve

SensitivitySpecificityORPPV
JTTR
RR≥2248.7% (45.5–51.9)68.2% (65.1%–71.2%)2.04 (1.69–2.45)61.1% (65.2–71.2)
RR≥2435.2% (32.2–38.4)82.0% (79.4%–84.4%)2.48 (2.01–3.07)66.7% (62.5–70.7)
MPTT69.9% (67.7–72.0)65.3% (63.2–67.4)4.37 (1.90–5.02)64.8% (62.7–67.0)
MPTT-2466.7% (64.5–68.9)69.9% (67.8–71.9)4.65 (2.02–5.34)67.0% (64.7–69.1)
UK Military Sieve43.2% (40.9–45.6)93.7% (92.5–94.7)11.29 (9.18–13.88)86.1% (83.6–88.4)
TARN
RR≥2247.5% (46.7–48.3)73.9% (73.6–74.3)2.56 (2.47–4.16)35.6% (35.0–36.3)
RR≥2436.1% (35.4–36.9)82.8% (82.5–83.2)2.73 (1.31–2.84)39.0% (38.3–39.8)
MPTT57.8% (56.9–58.2)71.5% (71.3–71.8)3.41 (3.31–3.51)32.9% (32.4–33.2)
MPTT-2453.5% (52.9–54.1)74.8% (74.6–75.1)3.43 (3.33–3.53)34.0% (33.4–34.5)
UK Military Sieve28.0% (27.5–28.6)94.1% (93.9–94.2)6.17 (5.94–6.41)53.3% (52.5–54.2)
  • JTTR, Joint Theatre Trauma Registry; RR, Respiratory Rate; MPTT, Modified Physiological Triage Tool; PPV, positive predictive value; TARN, Trauma Audit Research Network.