Table 2.

Results of proportion tests for categorical variables

Variable (category for proportion)	PHCCT (proportion)	Non-PHCCT (proportion)	P value	95% CI for difference
Gender (male)	0.73	0.57	<0.01	(0.13 to 0.20)
Patient taken to prospective MTC (yes)	0.77	0.33	<0.01	(0.41 to 0.47)
Mode of transport to hospital (land)	0.73	0.98	<0.01	(−0.28 to −0.22)
Severe head injury (yes)	0.25	0.17	<0.01	(0.04 to 0.11)
Prehospital intubation (yes)	0.27	0.01	<0.01	(0.23 to 0.30)
Major trauma (yes)	0.57	0.20	<0.01	(0.34 to 0.41)

MTC, Major Trauma Centre; PHCCT, prehospital critical care team.