Table 2

 Predictors of door to angiography time >90 minutes

ParameterTime >90 minutesp ValueAdjusted OR95% CIp Value
BBB, bundle brunch block; STEMI, ST elevation myocardial infarction.
Age ⩾70 years20.0%0.1831.160.97 to 1.380.101
Age <70 years16.9%
Female sex20.1%0.3021.211.01 to 1.450.032
Male sex16.9%
BBB29.7%0.1141.951.15 to 3.290.012
No BBB17.5%
Anterior STEMI17.4%0.9960.970.82 to 1.130.689
No anterior STEMI17.9%
Cardiogenic shock16.1%0.8350.850.67 to 1.080.179
No cardiogenic shock18.0%
Prior CABG27.7%0.0781.671.08 to 2.590.022
No prior CABG17.5%
Pre-hospital delay
    >3 hours23.1%<0.00011.611.37 to 1.89<0.0001
    0–3 hours15.1%
Volume of primary PTCA
    ⩾20/year14.3%<0.00010.530.46 to 0.62<0.0001
    <20/year23.5%
Year of intervention
    199416.4%0.8450.96 (per year)0.92 to 1.000.037
    199518.6%
    199618.8%
    199719.8%
    199817.7%
    199915.2%
    200018.9%