%0 Journal Article %T Perfil epidemiol¨®gico de la mortalidad por influenza humana A (H1N1) en M¨¦xico %A Fajardo-Dolci %A Germ¨¢n E %A Hern¨¢ndez-Torres %A Francisco %A Santacruz-Varela %A Javier %A Rodr¨ªguez-Su¨¢rez %A Javier %A Lamy %A Philippe %A Arboleya-Casanova %A Heberto %A Guti¨¦rrez-Vega %A Rafael %A Manuell-Lee %A Gabriel %A C¨®rdova-Villalobos %A Jos¨¦ ¨¢ngel %J Salud P¨²blica de M¨¦xico %D 2009 %I Instituto Nacional de Salud P¨²blica %R 10.1590/S0036-36342009000500003 %X objective: to carry out the epidemiological analysis of 122 influenza a (h1n1) deaths confirmed by laboratory and help to improve the diagnosis and timely managing of cases. material and methods: a total of 122 clinical records were analyzed of patients with confirmed influenza a (h1n1) virus infection who died. results: fifty-one percent of patients were female and 49% were male. a total of 45.l% who died were between 20 and 39 years old. overall fatality was 2.2% and ranged between 0.3% for the l0 to l9 year-old group to 6.3% for the 50 to 59 year-old group. forty-three percent of deaths were concentrated in only two of the thirty-two states and 5l% received medical attention in social security institutions. only l7% received hospital attention within 72 hours and 42% died within 72 hours of hospital attention. discussion: novel influenza a (h1n1) virus produces higher mortality in young people whereas seasonal influenza has a greater impact on young children and older people. delay in medical care and the associated morbidity were relevant factors for death. %K outbreak %K influenza %K epidemic %K mexico. %U http://www.scielosp.org/scielo.php?script=sci_abstract&pid=S0036-36342009000500003&lng=en&nrm=iso&tlng=en