Table 1.

Description of study population. Disease prevalence in relation to sex, age, and smoking.

		n	Diagnosed asthma	Asthma symptoms	Diagnosed COPD	Chronic b. symptoms
Sex	Men	4341	258(5.9%)	429(9.9%)	172(4.0%)	308(7.1%)
	Women	4975	428(8.6%)	686(13.8%)	243(4.9%)	327(6.6%)
Ever smoker	No	4306	291(6.8%)	431(10.0%)	118(2.7%)	217(5.0%)
	Yes	5010	395(7.9%)	684(13.7%)	297(5.9%)	418(8.3%)
Age	18–19	135	15(11.1%)	23(17%)	3(2.2%)	9(6.7%)
	20–29	1062	110(10.4%)	141(13.3%)	19(1.8%)	41(3.9%)
	30–39	2045	158(7.7%)	246(12.0%)	61(3.0%)	108(5.3%)
	40–49	1887	112(5.9%)	217(11.5%)	69(3.7%)	101(5.4%)
	50–59	2123	142(6.7%)	237(11.2%)	106(5.0%)	185(8.7%)
	60–69	1586	113(7.1%)	178(11.2%)	115(7.3%)	139(8.8%)
	70–77	478	36(7.5%)	73(15.3%)	42(8.8%)	52(10.9%)