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Table 3 Multivariate logistic regression predicting late presentation* among Veterans

From: Factors associated with presenting >12 hours after symptom onset of acute myocardial infarction among Veteran men

  Predictors of late presentation (n = 297) P
  OR [95% CI]  
Demographics
  Age ≥65 1.35 [0.72,2.56] 0.35
  Lives alone 1.74 [0.9,3.34] 0.1
 Distance traveled from home residence   
   <50 miles ref.  
   ≥50 miles 0.73 [0.31,1.72] 0.47
   Missing 1.3 [0.67,2.5] 0.44
 Attended some college/vocational 0.68 [0.35,1.33] 0.26
Presentation
  STEMI 0.43 [0.2,0.9] 0.03
  Angina episodes in previous 24 h   
   0-1 ref  
   ≥2 7.5 [3.6,15.6] <0.01
   Missing 7.43 [3.49,15.84] <0.01
Medical history
  ≥1 angina episode per day over prior 4 weeks 1.3 [0.64,2.65] 0.47
  Prior cardiac procedure (PCI of CABG) 0.82 [0.4,1.66] 0.57
  Prior myocardial infarction 0.55 [0.27,1.11] 0.09
  Congestive heart failure 1.64 [0.65,4.14] 0.29
  Diabetes 1.09 [0.58,2.05] 0.78
  PTSD 2.36 [0.88,6.3] 0.09
  Alcohol or substance abuse 0.76 [0.36,1.57] 0.45
Perception of health care
 How difficult is it for you to get medical care when needed?
   Not or not very difficult ref.  
   Somewhat difficult 1.16 [0.47,2.88] 0.74
   Moderately or more difficult 0.65 [0.28,1.54] 0.33
   Missing 0.15 [0.02,1.17] 0.07
  1. * Late presentation is hospital admission >12 hours after symptom onset of acute myocardial infarction.
  2. STEMI ST elevation myocardial infarction; PCI percutaneous coronary intervention; CABG cardiac artery bypass graft; PTSD post traumatic stress disorder; OR odds ratio; CI confidence interval.