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Table 1 Basic characteristics: patients were assigned to four different groups according to their AIS lung and AIS liver

From: Predictors of pulmonary failure following severe trauma: a trauma registry-based analysis

  Group 1 Group 2 Group 3 Group 4
AIS lung < 3 AIS lung ≥ 3 AIS lung < 3 AIS lung ≥ 3
AIS liver < 3 AIS liver < 3 AIS liver ≥ 3 AIS liver ≥ 3
(n = 5347; 42.5%) (n = 6528; 51.9%) (n = 188; 1.5%) (n = 522; 4.1%)
Age, years (mean ± SD) 42.1 ± 21.1a 40.5 ± 18.6c 31.1 ± 14.2d 34.8 ± 16.8e
ISS 24.1 ± 9.1 31.3 ± 11.1 27.4 ± 9.5 40.8 ± 11.6
NISS 31.5 ± 12.9 36.1 ± 12.8 34.6 ± 12.3 44.8 ± 12.6
Duration of ventilation (days) 7.3 ± 12.1 10.1 ±12.8 8.3 ± 11.2 13.7 ± 17.4
ICU length of stay (days) 11.5 ± 14.6 15.1 ± 15.8 13.1 ± 13.2 19.8 ± 22.3
In hospital length of stay (days) 28.5 ± 31.7b 32.2 ± 35.3 29 ± 24.5d 35 ± 29.9f
MOF (%) (defined as organ failure of two systems of >2 SOFA-score points of ≥ 2 days duration)16 19 ± 39 25 ± 43 26 ± 44 39 ± 49
OF (%) 35 44 38 55
In hospital mortality rate (%) 13 9 9 14
Pulmonary failure ≥ 2 days (%) 12 26 16 36
  1. Abbreviations: ISS, injury severity score; AIS, abbreviated injury scale; ICU, intensive care unit; MOF, multi-organ failure; OF, organ failure; SD, standard deviation; missing values: a0.4%, b1.5%, c0.3%, d0.5%, e0.8% and f1.7%.