The Prevalence of Asthma and Declared Asthma in Poland on the Basis of ECAP Survey Using Correspondence Analysis

Table 7

Frequency of breathing difficulties.

Symptom breathing difficulties	Age 6-7; (Ch1)	Age 13-14; (Ch2)	Age 20–44; (Ad)
Kat.o	18%	23%	19%
Zam.o	15%	14%	11%
Kr.o	21%	23%	17%
Wr.o	25%	24%	26%
L.o	19%	22%	16%
Gd.o	26%	30%	26%
Wa.o	32%	27%	26%
Poz.o	18%	19%	12%
B.o	18%	18%	18%