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New York State Department of Health December 2010 - page 54 / 62

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Appendix 2

2008 Risk Factors For In-Hospital/30-Day Mortality For Non-Emergency PCI

Appendix 2 contains the significant pre-procedural risk factors for 2008 New York State PCI patients who were not emergency patients (were not hemodynamically unstable and who did not suffer a heart attack within 24 hours prior to the PCI being performed).

  • ๎š

    e variables for Age, CHF, Current, COPD and ๎šree Vessels Diseased are interpreted in the same manner as they were

in Appendix 1. Renal Failure is similar to Appendix 1, but in this case, all groups are relative to patients who are not on dialysis and who had no pre-PCI creatinine values greater than 1.5 mg/dL. ๎še interpretation of Ejection Fraction is also similar to that previously described. In this case, the reference category is patients with an ejection fraction of 50 percent or greater.

Body Mass Index is a relationship of weight to height. A person with a Body Mass Index of <40 (morbidly obese) is 2.029 times more likely to die in the hospital or after discharge but within 30 days than a patient with a Body Mass Index ≥ 40.

In this model, there are only three categories for Previous MI (one to seven days prior to PCI, eight to twenty days prior and no MI within twenty days prior to the procedure). ๎še odds ratio for the Previous MI ranges are relative to patients who have not had an MI within twenty days prior to PCI.

Ejection Fraction 50% or greater

77.21

---Reference---

1.000

Ejection Fraction less than 20%

0.74

1.0717

0.0033

2.920

Ejection Fraction 20-29%

3.14

1.0059

<.0001

2.734

Ejection Fraction 30-39%

5.70

0.7036

0.0002

2.021

Ejection Fraction 40-49%

13.21

0.4162

0.0094

1.516

Prevalence (%)

Coefficient

P-Value

Odds Ratio

--- 5.80

0.0710 0.7073

<.0001 0.0018

1.074 2.029

0.6099

<.0001

1.840

0.9419

<.0001

2.565

Pre-Procedural MI

No MI within 20 days MI 1-7 days MI 8 – 20 days Comorbidities CHF, Current COPD Renal Failure

No Renal Failure Renal Failure, Creatinine 1.6– 3.0 mg/dl

Renal Failure, Creatinine > 3.0 mg/dl

Renal Failure, requiring dialysis

Vessels Diseased Three Vessels Diseased

Demographic Age: Number of Years > 65 Body Mass Index > 40 (morbidly obese) Ventricular Function Ejection Fraction

---Reference---

1.000

1.0814

<.0001

2.949

0.9398

0.0003

2.559

---Reference---

1.000

0.8160

<.0001

2.261

1.2393

0.0045

3.453

1.8492

<.0001

6.355

85.15 13.23 1.62

Patient Risk Factor

0.3104

0.0279

1.364

13.59

Appendix 2 Multivariate Risk-Factor Equation for In-Hospital/ 30-Day Deaths During or Following PCI , 2008 (Non-

5.51 6.71

89.74 7.42 0.48 2.36

Emergency Cases)

Logistic Regression

Intercept

C Statistic =

=

  • -

    6.6685

0.831

48

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