The time from onset of symptoms to intervention was similar in the two groups with a
median time of 150.5 minutes (interquartile range, 125.0 to 213.8) in the oxygen group compared
with 162.0 minutes (interquartile range, 130.0 to 240.0) in the no oxygen group (P=0.09).
Procedural details including infarct related artery, site of arterial access, use of thrombus
aspiration, administration of glycoprotein IIb/IIIa antagonists and stent implantation were similar
between the groups