Table 4.

Number of subjects with different score levels (divided into six groups) in relation to the probability of having asthma or chronic obstructive pulmonary disease (n=192)

Scores*	No with score	No with asthma or COPD	Probability of having asthma or COPD
0-1	37	5	0.13
1-2	47	11	0.26
2-3	46	20	0.49
3-4	36	29	0.72
4-5	23	20	0.88
5-6.98	3	3	0.97

^*P (asthma or COPD) = symptoms provoked by allergens (0,1.5) + prolonged expiration (0,1) + wheeze (0,1) + dyspnoea (0,1) + sex (male=0, female=1) + pack years of smoking/25. (Numbers in parentheses are the values given when variable was absent or present.)