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Table 2 Results of random effects logistic regression of transfer to any tertiary care hospital

From: The association between clinical integration of care and transfer of veterans with acute coronary syndromes from primary care VHA hospitals

Variable Odds ratio p-value Lower limit 95% CI Upper limit 95% CI
Patient age 65 and over 0.69 0.06 0.48 1.01
Chronic obstructive pulmonary disease 0.48 <0.001 0.31 0.74
Bleeding disorder 0.68 0.04 0.47 0.98
Smoker 3.28 0.01 1.32 8.12
Prior percutaneous coronary intervention 1.30 0.18 0.89 1.91
Chronic heart failure 2.10 <0.001 1.33 3.32
ST segment elevation on presenting electrocardiogram 2.07 <0.001 1.32 3.26
Cardiac enzymes abnormal on presentation 0.92 0.65 0.64 1.31
Do not resuscitate during hospitalization 0.29 <0.001 0.12 0.65
In-hospital event* 3.14 <0.001 2.21 4.46
Distance from patient home zip code centroid to hospital >100 miles 1.71 0.02 1.08 2.70
Distance from primary VHA to tertiary VHA hospital in miles 0.998 0.03 0.997 0.999
Degree of market competition (1 = not competitive; 3 = highly competitive) 0.55 <0.001 0.41 0.73
VHA cardiologist on site 0.48 <0.001 0.29 0.79
Tertiary VHA hospital has referral coordinator 0.39 <0.001 0.23 0.69
Primary VHA hospital has referral coordinator 6.53 <0.001 3.29 12.98
  1. * Presence of at least one of the following adverse events during admission: angina persisting more than 24 hours after admission; a hypotensive episode; an episode of heart failure; cardiac arrest; or positive stress test during admission