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Table 3 Patients classified by Shock Index: laboratory characteristics

From: The Shock Index revisited – a fast guide to transfusion requirement? A retrospective analysis on 21,853 patients derived from the TraumaRegister DGU®

Laboratory findings Group I (SI <0.6, no shock) Group II (SI ≥0.6 to <1.0, mild shock) Group III (SI ≥1.0 to <1.4, moderate shock) Group IV (SI ≥1.4, severe shock)
Hemoglobin (g/dl)     
 Mean ± standard deviation 12.8 (2.3) 12.3 (2.6) 10.7 (2.9) 9.2 (3.0)
 Median (IQR) 13 (12 to 14) 13 (11 to 14) 11 (9 to 13) 9 (7 to 11)
Thrombocytes (tsd/μl)     
 Mean ± standard deviation 213 (73) 214 (76) 197 (79) 176 (92)
 Median (IQR) 208 (169 to 252) 209 (167 to 256) 194 (143 to 243) 169 (123 to 219)
Quick’s value (%)     
 Mean ± standard deviation 86.0 (20.2) 82.4 (21.1) 69.3 (23.7) 57.7 (24.7)
 Median (IQR) 90 (77 to 100) 86 (71 to 98) 71 (53 to 88) 56 (40 to 75)
pTT (seconds)     
 Mean ± standard deviation 39.8 (10.2) 31.1 (12.9) 38.7 (24.4) 51.4 (34.0)
 Median (IQR) 28 (25 to 32) 29 (25 to 33) 32 (27 to 39) 38 (30 to 59)
Lactate (mmol/l)     
 Mean ± standard deviation 2.7 (4.7) 3.1 (5.2) 4.6 (7.7) 6.0 (8.4)
 Median (IQR) 2 (1 to 3) 2 (1 to 3) 3 (2 to 5) 4 (2 to 7)
  1. n = 21,853; P <0.001 for all parameters. IQR Interquartile range, pTT Partial prothromboplastin time, tsd Thousand.