Table 1 Demographic, clinical, and injury characteristics.

From: Rapid prediction of secondary neurologic decline after traumatic brain injury: a data analytic approach

 

Neurologic decline

p-value

Yes

No

N = 165 (18)

N = 740 (82)

Age1

57 (38, 75)

54 (33, 71)

0.099

Sex2

  

0.242

Male

116 (70%)

485 (66%)

 

Female

49 (30%)

255 (34%)

 

Injury type2

  

< 0.001

Blunt

147 (89%)

707 (96%)

 

Penetrating

18 (11%)

33 (4%)

 

Arrival GCS1

13 (7, 15)

15 (13, 15)

< 0.001

Arrival vitals1

Temp

36.6 (36.3, 36.8)

36.7 (36.5, 36.8)

< 0.001

SBP

150 (133, 177)

146 (130, 177)

0.599

DBP

89 (75, 100)

89 (77, 100)

0.783

HR

86 (73, 100)

89 (77, 102)

0.079

RR

22 (18, 27)

22 (18, 26)

0.377

O2Sat

99 (96, 100)

98 (95, 100)

0.037

Race2

  

0.462

White

97 (59%)

450 (61%)

 

Black

48 (29%)

227 (31%)

 

Asian

5 (3%)

10 (1%)

 

Other/Unknown

15 (9%)

53 (7%)

 
  1. Statistical significance and p-values were assessed for ordinal variables using Wilcoxon rank sum tests1 and for categorical variables using Chi-squared tests2. GCS = Glasgow coma scale; Temp = temperature (degrees Celcius); SBP = systolic blood pressure (mmHg); DBP = diastolic blood pressure (mmHg); HR = heart rate (beats per minute); RR = respiratory rate (breaths per minute); O2Sat = oxygen saturation (%).
  2. Significant values are in bold.
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