Prehospital Predictors for Urgent Neurosurgical Intervention in the Head Trauma Patient: A 2-Year Multicenter Retrospective Study

Table 2

Comparison of patient characteristic variables in relation to the variable: classification

Variables	Parameters	C1 (N = 64)	Others (N = 7853)	Test	value
Sex	Female	32.8% (N = 21)	39.6% (N = 3110)	Chi-square	0.3276
	Male	67.2% (N = 43)	60.4% (N = 4742)
Age (years)	N	64	7826	Mann–Whitney U	<0.001
	Mean (SD)	63.31 (21.79)	49.27 (20.82)
	Median (IQR)	66.5 (41.5–81)	47 (31–65)
	Range	18–95	5–104
Time from injury to arrival (days)	N	16	1605	Mann–Whitney U	0.0138
	Mean (SD)	5.31 (4.61)	4.67 (12.17)
	Median (IQR)	3.5 (2–6.25)	2 (1–4)
	Range	1–14	1–240
Glasgow Coma scale	N	47	5617	Mann–Whitney U	<0.001
	Mean (SD)	10.68 (4.64)	14.83 (1)
	Median (IQR)	13 (5.5–15)	15 (15–15)
	Range	3–15	3–15
Loss of consciousness	Yes	67.7% (N = 21)	42% (N = 2386)	Fisher	0.0184
	Recalls partially	0% (N = 0)	0.5% (N = 26)
	No	32.3% (N = 10)	57.5% (N = 3265)

The bold values indicate significance.