TY  - JOUR
T1  - EXposure to air pollutants and myocardial infarction risk—reply
AU  - Mustafić H, Jouven X, Jabre P
Y1  - 2012/06/13
N1  - 10.1001/jama.2012.4118
JO  - JAMA
SP  - 2370
EP  - 2370
VL  - 307
IS  - 22
N2  - 
In Reply: We agree with Mr Huang and Dr Mao that there is heterogeneity among studies evaluating the effect of air pollutants on the risk of MI. The intent in performing a meta-analysis is, as far as possible, to reduce heterogeneity. We converted the pollutant concentrations from the various studies to the same units and chose the most frequently used values for the increase in pollutant concentrations: 10 μg/m3 for all pollutants except for carbon monoxide and 1 mg/m3 for carbon monoxide. This method is frequently used for meta-analyses.1

SN  - 0098-7484
M3  - doi: 10.1001/jama.2012.4118
UR  - http://dx.doi.org/10.1001/jama.2012.4118
ER  -