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Table 3 Sensitivity and specificity of LT-BI according to the combination of pSBP and pHR

From: Impact of Cushing’s sign in the prehospital setting on predicting the need for immediate neurosurgical intervention in trauma patients: a nationwide retrospective observational study

  

Sensitivity (95% CI)

Specificity (95% CI)

pSBP ≤ 99

pHR ≤ 59

0.011 (0.007–0.015)

0.985 (0.984–0.987)

60 ≤ pHR ≤ 99

0.042 (0.035–0.052)

0.900 (0.896–0.903)

100 ≤ pHR ≤ 139

0.030 (0.023–0.037)

0.931 (0.928–0.934)

140 ≤ pHR

0.006 (0.004–0.010)

0.989 (0.988–0.991)

100 ≤ pSBP ≤ 139

pHR ≤ 59

0.034 (0.028–0.041)

0.975 (0.973–0.978)

60 ≤ pHR ≤ 99

0.190 (0.175–0.206)

0.706 (0.700–0.713)

100 ≤ pHR ≤ 139

0.065 (0.056–0.076)

0.885 (0.881–0.889)

140 ≤ pHR

0.006 (0.003–0.010)

0.990 (0.989–0.992)

140 ≤ pSBP ≤ 179

pHR ≤ 59

0.042 (0.036–0.049)

0.982 (0.979–0.985)

60 ≤ pHR ≤ 99

0.231 (0.215–0.246)

0.829 (0.823–0.836)

100 ≤ pHR ≤ 139

0.072 (0.062–0.082)

0.928 (0.924–0.932)

140 ≤ pHR

0.009 (0.006–0.013)

0.989 (0.988–0.991)

180 ≤ pSBP

pHR ≤ 59

0.023 (0.018–0.026)

0.994 (0.993–0.996)

60 ≤ pHR ≤ 99

0.178 (0.166–0.189)

0.946 (0.941–0.951)

100 ≤ pHR ≤ 139

0.055 (0.047–0.063)

0.972 (0.968–0.975)

140 ≤ pHR

0.006 (0.004–0.008)

0.997 (0.996–0.998)

  1. LT-BI life-threatening brain injuries requiring immediate neurosurgical intervention, pSBP systolic blood pressure in the prehospital setting, pHR heart rate in the prehospital setting