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COPD Survival Calculator

Purpose: To evaluate a patient with chronic obstructive pulmonary disease (COPD) using the BODE index of Celli et al.

Description

Celli et al proposed the BODE (Body Mass Index, Obstructive Airflow, Dyspnea, Exercise Capacity) Index for patients with chronic obstructive pulmonary disease. The authors are from Tufts University, Bay Pines VA Medical Center, and hospitals in Spain and Venezuela.


Parameters:

(1) body mass index [BMI = (kilograms body weight) / ((height in meters)^2)]

(2) FEV1 as percent of predicted

(3) dyspnea, measured using the MRC dyspnea scale

(4) exercise capacity as measured by a 6-minute walk

 

Parameters

Finding

Points

FEV1 as percent of predicted

>= 65%

0

 

50 - 64.9%

1

 

36 - 49.9%

2

 

< 36%

3

distance walked in 6 minutes

>= 350 meters

0

 

250 - 349.9 meters

1

 

150 - 249.9 meters

2

 

< 150 meters

3

MRC dyspnea scale

0 (none)

0

 

1

0

 

2

1

 

3

2

 

4 (too breathless to leave the house, or breathless when changing clothes)

3

BMI

> 21 kg per square meter

0

 

<= 21 kg per square meter

1

 

total BODE index =

= SUM(points for all 4 parameters)

 

Interpretation:

• minimum index: 0

• maximum index: 10

• The higher the index the worse the prognosis.

 

Index

Quartile

4 Year Survival

0, 1 or 2

1

82%

3 or 4

2

69%

5 or 6

3

60%

7 to 10

4

25%

from Figure 1, page 1010


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Specialty

Objective

ICD-10