Price et al reported a questionnaire to screen a smoker for COPD. The authors are from the multiple institutions in the North America and Europe.
Patient selection: smoker
Parameters:
(1) age in years
(2) body mass index (BMI) in kg per square meter
(3) number of pack years of smoking
(4) Does weather affect cough?
(5) Do you cough up phlegm when you do not have a cold?
(6) Do you usually cough up phlegm first thing in the morning?
(7) wheezing
(8) allergies
|
Parameters
|
Finding
|
Odds Ratio
|
|
age in years
|
40 to 49
|
1
|
|
|
50 to 59
|
2.29
|
|
|
60 to 69
|
8.47
|
|
|
>= 70
|
11.82
|
|
BMI
|
< 25.4
|
1
|
|
|
25.4 to 29.7
|
0.45
|
|
|
> 29.7
|
0.29
|
|
number of pack years
|
0 to 14
|
1
|
|
|
15 to 24
|
1.5
|
|
|
25 to 49
|
2.14
|
|
|
>= 50
|
4.09
|
|
weather affects cough
|
no
|
1
|
|
|
yes
|
2.36
|
|
phlegm without cold
|
no
|
1
|
|
|
yes
|
2.58
|
|
phlegm first thing in morning
|
no
|
1
|
|
|
yes
|
0.4
|
|
wheezing
|
never
|
1
|
|
|
ocasionally or more often
|
1.49
|
|
allergies
|
no
|
1
|
|
|
yes
|
0.23
|
cumulative odds ratio =
= PRODUCT(odds ratios for all 8 parameters)
