Horita et al reported the Chronic Obstructive Pulmonary Disease (COPD) Prognostic Score for evaluating a patient with COPD. The authors are from Yokohama City University, Charles University, University Hospital Brno, and Masaryk University in the Czech Republic.
Patient selection: adult with COPD
Parameters:
(1) FEV1 as percent of predicted
(2) age in years
(3) modified MRC dyspnea scale
(4) hemoglobin in g/L
(5) sex
(6) daily activity scale
(7) respiratory emergency admission in past 24 months
Parameter
Finding
Points
FEV1
>= 75% of predicted
0
55 to 74.9%
1
40 to 54.9%
2
30 to 39.9%
3
< 30%
4
age
< 63 years
0
63 to 69.99
1
70 to 76.99
2
77 to 83.99
3
>= 84 years
4
modified MRC dyspnea
only with strenuous exercise
0
when hurrying on the level of walking up a slight hill
1
walks slower than others of same age or stops for breath when walking at own pace on the level
2
after walking 100 meters or after a few minutes on the level
3
unable to leave house or dyspnea when dressing
4
hemoglobin and sex
male and Hgb >= 140 g/L
0
male and Hgb 120 to 139 g/L
1
male and Hgb < 120 g/L
2
female and >=130 g/L
0
female and 110 to 129 g/L
1
female and Hgb < 110 g/L
2
daily activity
active
0
inactive or sedentary
1
respiratory emergency admission
no
0
yes
1
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 16
• The higher the score the worse the prognosis.
Performance:
• The area under the ROC curve for 2-year all-cause mortality was 0.72.
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