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Table 2 Basic demographic and clinical characteristics.

From: Predicting on-going hemorrhage and transfusion requirement after severe trauma: a validation of six scoring systems and algorithms on the TraumaRegister DGU®

Clinical Characteristics Mean ± SD Median (IQR) Number (%) Valid n
Age 45.7 ± 19.3 44.0 (29.0, 60.0)   5147
Sex, male    3780 (73.4%) 5147
ISS 24.3 ± 13.2 22.0 (14.0, 32.0)   5147
NISS 30.4 ± 16.0 27.0 (17.0, 41.0)   5147
Blunt trauma    4889 (95%) 5147
Heart rate in ER, bpm 89.7 ± 20 90.0 (78.0, 100.0)   5147
Blood pressure in ER, mmHg 125.3 ± 28.6 125.0 (110.0, 140.0)   5147
Platelet count, *1000/μl 206.6 ± 76.2 203.0 (161.0, 248.0)   5127
Body temperature in ER,°C 36 ± 1.2 36.2 (35.4, 36.9)   3134
Hemoglobin in ER, g/dl 11.8 ± 2.6 12.1 (10.1, 13.7)   5147
Base excess in ER, mmol/l -2.6 ± 4.3 -2.2 (-4.6, 0.0)   5147
Lactate in ER, mmol/l 3.1 ± 5.2 1.9 (1.2, 3.0)   5147
pH in ER 7.3 ± 0.1 7.3 (7.3, 7.4)   2097
aPTT in ER, sec 31.6 ± 12.9 29.0 (25.9, 33.4)   4433
Quick in ER 81.2 ± 21.1 84.0 (69.0, 97.0)   5147
pRBC 2.1 ± 5.5 0.0 (0.0, 2.0)   5147
Platelet concentrate 0.1 ± 0.7 0.0 (0.0, 0.0)   4520
Fresh frozen plasma 1.5 ± 4.5 0.0 (0.0, 0.0)   4866
Massive transfusion    289 (5.6%) 5147
  1. IQR represents the 25th to 75th interquartile range. ISS: injury severity score; NISS: new injury severity score; ER: emergency room; aPPT: activated partial thromboplastin time; pRBC: packed red blood cells; ICU: intensive care unit.