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Table 3 Comparisons of the optimal prediction rule, PESI and sPESI

From: Association between serum calcium and prognosis in patients with acute pulmonary embolism and the optimization of pulmonary embolism severity index

Variable

PESI

sPESI

Optimal Prediction rRule

Age

Age in years

1 point (if age > 80 years)

4 points (if age > 80 years)

Male sex

10 points

  

Cancer

30 points

1 point

4 points

Chronic heart failure

10 points

1 point

2 points

Chronic pulmonary disease

10 points

  

Pulse rate ≥ 110b.p.m

20 points

1 point

4 points

Systolic BP < 100 mmHg

30 points

1 point

 

Respiratory rate > 30 breaths per min

20 points

  

Temperature < 36 °C

20 points

  

Altered mental status

60 points

 

5 points

Arterial oxyhaemoglobin saturation < 90%

20 points

1 point

 

Serum calcium ≤ 2.13 mmol/L

  

3 points

  1. In the optimal prediction rule, sum of points of six variables ≥ 4 was identified as the high death risk