Table 1.

Demographics, severity of injury, pretraumatic and post-traumatic circumstances and comorbidities

		Exposed		Control
		N	% (95 % CI)	N	% (95 % CI)
Age	18–39	35 691	31.9 (31.6 to 32.2)	103 908	31.9 (31.7 to 32.0)
	40–59	24 882	22.2 (22.0 to 22.5)	73 198	22.5 (22.3 to 22.6)
	60–79	27 547	24.6 (24.4 to 24.9)	79 917	24.5 (24.4 to 24.7)
	79<	23 827	21.3 (21.0 to 21.5)	68 858	21.1 (21.0 to 21.3)
Sex	Male	65 633	58.6 (58.3 to 58.9)	190 606	58.5 (58.3 to 58.7)
	Female	46 314	41.4 (41.1 to 41.7)	135 275	41.5 (41.3 to 41.7)
Type of injury	Control	0	0.0	325 881	100
	Mild Injury	76 329	68.2 (67.9 to 68.5)	0	0.0
	Fracture	6081	5.4 (5.3 to 5.6)	0	0.0
	Extracerebral Injury	16 492	14.7 (14.5 to 14.9)	0	0.0
	Diffuse Cerebral Injury	8778	7.8 (7.7 to 8.0)	0	0.0
	Focal Cerebral Injury	4267	3.8 (3.7 to 3.9)	0	0.0
Seizure during hospitalisation		363	0.3 (0.3 to 0.4)	0	0.0
Mechanical ventilation		1367	1.2 (1.2 to 1.3)	27	0.0 (0.0 to 0.0)
Stroke		21 429	19.1 (18.9 to 19.4)	33 614	10.3 (10.2 to 10.4)
Cerebral infection		1315	1.2 (1.1 to 1.2)	2064	0.6 (0.6 to 0.7)
Tumour		1433	1.3 (1.2 to 1.3)	2844	0.9 (0.8 to 0.9)