Table 2.

Unadjusted associations with presence of any collaterals or adequate collaterals to the infarct artery

CharacteristicAny CollateralsAdequate Collaterals
Odds Ratio95% Confidence IntervalP ValueOdds Ratio95% Confidence IntervalP Value
Demographics
 age (yr)
  ≤401.00RefRef1.00RefRef
  41–600.250.02–2.920.270.200.17–2.250.19
  61–800.110.01–1.250.080.080.01–0.960.05
  ≥800.290.02–3.830.350.180.13–2.430.20
 male sex1.450.76–2.780.272.060.98–4.320.06
 race
  white1.00RefRef1.00RefRef
  black1.000.30–3.350.990.920.24–3.450.90
  other0.470.13–1.680.250.630.18–2.270.48
Medical history
 diabetes0.920.46–1.820.810.900.43–1.890.79
 hyperlipidemia0.910.49–1.690.771.110.57–2.170.76
 hypertension0.740.37–1.460.380.860.41–1.820.70
 present smoking1.410.71–2.810.331.380.67–2.890.39
 past smoking1.140.58–2.250.701.300.65–2.670.47
 prior MI1.380.67–2.830.381.090.49–2.410.83
 family history of coronary artery disease1.290.68–2.420.441.260.64–2.480.50
 ESRD2.760.17–44.890.483.720.23–60.70.36
 CKD0.890.44–1.790.750.860.40–1.820.69
Infarct characteristics
 ST elevation myocardial infarction1.020.51–2.060.950.830.38–1.810.64
 infarct location
  left anterior descending artery1.00RefRef1.00RefRef
  left circumflex artery1.930.80–4.660.143.461.20–9.990.02
  right coronary artery4.221.81–9.860.0016.0321.4–17.000.001
  other2.040.35–11.710.431.690.17–16.580.65
Congestive heart failure on presentation0.880.29–2.660.820.590.28–1.260.18
  • The presence of any collaterals was defined as a Rentrop score ≥1. Adequate collaterals were defined as a Rentrop score ≥2.