Table 1.

Study characteristics and incidence of in-flight medical emergencies.

Authors	Journal	Dates	Study Design	Total # of Cases reported	Incidence	Diversion	Cardiac Arrest/Death
Hung et al	Arch Int Med 2010	01/2003–01/2008	Retrospective Cohort, Single Airline-Hong Kong	4068/5 years	Appx. 11.63 per billion revenue passenger killometers	46 (1.1%)	30 (0.7%)
Sand et al	Crit Care 2009	01/2002–12/2007	Retrospective 2 Airlines-Europe	10,189/5 years	Appx. 14 (+2.3) per billion revenue passenger kilometers	279 (2.7%)	52 (0.5%)
Baltsezack, S	J Travel Med. 2008	01/2006–01/2007	Retrospective Single Airline-Asia	191/1 Year	Not Analyzed	Not Analyzed	1 (0.5%)
Qureshi et al	E Med Journal 2005	06/2002–12/2002	Retrospective Single Airline- Edinburgh	507/6 months	Not Analyzed	Not Analyzed	Not Analyzed
Delaune et al	Aviat Space Environ Med 2003	07/1999–06/2000	Retrospective single airline.	2965/1 year	22.6 per million passengers	181 (7.9%)	7 (0.1 per million passengers).
Dowdall, Nigel	BMJ 2000	03/1998–03/1999-	Retrospective Single Airline-British Airways	3386/1 year	Appx. 1 per 11,000 passengers	Not Analyzed	Not Analyzed
Szmajer et al	Resuscitation	01/1989–12/1999	Retrospective Single Airline-Air France	380/10 years	1/20,000 passengers (during the last 2 years under review)	37 (9.7%)	3 (0.8%)
Cummins et al	JAMA 1989	09/1986–08/1987	Prospective Single airport	754/1 year	52.4 per million passengers.	7 (4%)	1 (1%)