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Table 1 Patient demographics stratified according to Injury Severity Score.

From: Estimation of plasma fibrinogen levels based on hemoglobin, base excess and Injury Severity Score upon emergency room admission

 

ISS 16-24

ISS 25-34

ISS 35-49

ISS 50-75

P value for all 4 group differences

Patients n (% of total)

242 (35.9%)

249 (36.9%)

97 (14.4%)

87 (12.9%)

N/A

Age (range)

42.5 (26-56)

47 (29.5-60)ns

45 (24-59)ns

42 (25-59)ns

nsKruskal- Wallis

Male n (% of ISS group)

200 (82.6%)

195 (78.3%)ns

76 (78.4%)ns

66 (75.9%)ns

nsChi-square

Mortality n (% of ISS group)

5 (2.1%)

32 (12.9%)***

27 (27.8%)**

42 (48.3%)**

***Chi-square

FIB mg/dL (IQR)

235 (182.5-286.3)

191.0 (143-240)***

134 (94.5-185.5)***

114 (69-156)*

***Kruskal- Wallis

Hb g/dL (IQR)

13.0 (11.7-14.2)

12.3 (10.6-13.7)***

10.9 (8.4-13.0)***

9.6 (7.0-11.6)**

***Kruskal- Wallis

BE mmol/L (IQR)

−2.6 (−4.5 to −1.4)

−3.7 (−6.2 to −2.1)***

−5.7 (−8.5 to −2.9)***

−7.1 (−10.9 to −4.6)**

***Kruskal- Wallis

  1. ns, not significant, *P <0.05, **P <0.01, ***P <0.001, significance values for comparison with previous group. BE, base excess; FIB, plasma fibrinogen; Hb, hemoglobin; IQR, interquartile range; ISS, Injury Severity Score.
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