Air pollution exposure--a trigger for myocardial infarction?
The association between ambient air pollution exposure and hospitalization for cardiovascular events has been reported in several studies with conflicting results. A case-crossover design was used to investigate the effects of air pollution in 660 first-time myocardial infarction cases in Stockholm in 1993-1994, interviewed shortly after diagnosis using a standard protocol. Air pollution data came from central urban background monitors. No associations were observed between the risk for onset of myocardial infarction and two-hour or 24-hour air pollution exposure. No evidence of susceptible subgroups was found. This study provides no support that moderately elevated air pollution levels trigger first-time myocardial infarction.
Berglind
Niklas
N
Institute of Environmental Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden.niklas.berglind@ki.se
Ljungman
Petter
P
Möller
Jette
J
Hallqvist
Johan
J
Nyberg
Fredrik
F
Rosenqvist
Mårten
M
Pershagen
Göran
G
Bellander
Tom
T
D000368:Aged; D000397:Air Pollution; D004781:Environmental Exposure; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000453:epidemiology*; D012307:Risk Factors; D013548:Sweden / Q000453:epidemiology