[Epidemiological profile of mortality due to human influenza A (H1N1) in Mexico].
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.


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.


CONCLUSIONS
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.
Fajardo-Dolci
Germán E
GE
Organización Panamericana de la Salud/Organización Mundial de la Salud, México.
Hernández-Torres
Francisco
F
Santacruz-Varela
Javier
J
Rodríguez-Suárez
Javier
J
Lamy
Philippe
P
Arboleya-Casanova
Heberto
H
Gutiérrez-Vega
Rafael
R
Manuell-Lee
Gabriel
G
Córdova-Villalobos
José Angel
JA
D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D053118:Influenza A Virus, H1N1 Subtype; D007251:Influenza, Human / Q000453:epidemiology / Q000401:mortality*; D008297:Male; D008800:Mexico / Q000453:epidemiology; D008875:Middle Aged; D055815:Young Adult