Hypoxia and hypotension in patients intubated by physician staffed helicopter emergency medical services - a prospective observational multi-centre study

Table 2 Hypotension and hypoxia rates before and after airway intervention

Patients	Trauma		Non-trauma		P-value^a	All patients		Missing data
Patients	843	100%	442	100%	–	1265	100%	–	–
Hypoxia^b
Pre-intervention	126	18%	114	33%	0.01	240	23%	212	17%
Post-intervention	40	5%	31	8%	0.17	71	6%	106	8%
Admission to hospital	23	3%	12	3%	0.30	35	3%	164	13%
Hypotension^c
Pre-intervention	87	12%	56	15%	0.83	143	13%	157	12%
Post-intervention	100	13%	63	16%	0.97	163	14%	77	6%
Admission to hospital	68	9%	37	10%	0.12	105	9%	148	12%

ISSN: 1471-227X