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Table 4 Effect of catheterization availability, physician specialty, university affiliation and volume on fatal and non-fatal outcome

From: Impact of on-site cardiac catheterization on resource utilization and fatal and non-fatal outcomes after acute myocardial infarction

 

Hazard Ratios and 95% Confidence Intervals

 

Catheterization Availability

Physician Specialty*

University Affiliation

Volume >= 150

Congestive Heart Failure

    

   Unadjusted

1.01 (0.92 – 1.12)

0.85 (0.78 – 0.92)

1.03 (0.94 – 1.12)

0.97 (0.88 – 1.06)

   Adjusted

1.02 (0.90 – 1.15)

0.92 (0.83 – 1.03)

1.07 (0.96 – 1.19)

0.94 (0.85 – 1.05)

Unstable Angina

    

   Unadjusted

0.81 (0.76 – 0.87)

0.82 (0.77 – 0.87)

0.91 (0.86 – 0.97)

0.758 (0.71 – 0.81)

   Adjusted

0.93 (0.85 – 1.02)

0.90 (0.83 – 0.98)

1.11 (1.03 – 1.19)

0.80 (0.74 – 0.86)

Recurrent AMI

    

   Unadjusted

0.97 (0.87 – 1.07)

0.90 (0.83 – 0.99)

0.92 (0.84 – 1.01)

0.93 (0.84 – 1.03)

   Adjusted

1.02 (0.89 – 1.16)

0.97 (0.86 – 1.08)

0.92 (0.83 – 1.03)

0.95 (0.85 – 1.06)

Mortality

    

   Unadjusted

0.98 (0.94 – 1.03)

0.84 (0.81 – 0.88)

1.02 (0.98 – 1.06)

1.05 (1.00 – 1.10)

   Adjusted

0.99 (0.93 – 1.05)

0.93 (0.88 – 0.98)

1.02 (0.97 – 1.07)

1.08 (1.03 – 1.14)

  1. * Cardiologists compared to internists or family physicians.
  2. Note: The adjusted relative risks need to be interpreted with caution because variables are highly correlated.