TABLE 1.

Prevalence estimates of chronic cough (CC) in the National Health and Wellness Survey (NHWS) sample: lifetime, in past 12 months, diagnosed, drug treated (unweighted estimated)

		NHWS sample size	Lifetime #			12 months ¶			Lifetime diagnosed +			Lifetime diagnosed and current user of a prescription medication to treat CC §
			n	%	p-value*	n	%	p-value*	n	%	p-value*	n	%	p-value*
Total		15 020	981	6.5		739	4.9		418	2.8		95	0.6
Gender	Female	7741	518	6.7	0.412	397	5.1	0.223	248	3.2	0.001	45	0.6	0.415
	Male	7279	463	6.4		342	4.7		170	2.3		50	0.7
Age group, years	18–29	2357	195	8.3	<0.001	113	4.8	<0.001	40	1.7	<0.001	8	0.3	<0.001
	30–39	2187	122	5.6		85	3.9		20	0.9		4	0.2
	40–49	2288	116	5.1		84	3.7		46	2.0		9	0.4
	50–64	4214	273	6.5		229	5.4		154	3.7		31	0.7
	65–74	3330	234	7.0		191	5.7		136	4.1		34	1.0
	75+	644	41	6.4		37	5.7		22	3.4		9	1.4
Smoking status	Current/Former smoker	8187	655	8.0	<0.001	526	6.4	<0.001	293	3.6	<0.001	68	0.8	<0.001
	Never smoked	6833	326	4.8		213	3.1		125	1.8		27	0.4
Region ƒ	East	4960	310	6.3	0.008	232	4.7	0.004	130	2.6	0.327	27	0.5	0.424
	North	1155	77	6.7		59	5.1		35	3.0		7	0.6
	South	3665	205	5.6		147	4.0		90	2.5		19	0.5
	West	5230	389	7.4		301	5.8		163	3.1		42	0.8

*: comparison of subsample with total sample. ^#: prevalence estimates for ever being diagnosed with CC. ^¶: prevalence estimates for experienced CC in past 12 months. ⁺: prevalence estimates for ever being diagnosed with CC. ^§: prevalence estimates for ever being diagnosed and for currently using a prescription medication to treat their CC. ^ƒ: South: Baden-Wuerttemberg, Bavaria; East: Berlin, Brandenburg, Lower Saxony, Mecklenburg-Western Pomerania, Saxonia, Saxonia-Anhalt, Thuringia; North: Bremen, Hamburg, Schleswig-Holstein; West: Hessia, North Rhine-Westphalia, Rhineland-Palatinate, Saarland; not specified: 10 respondents chose not to answer that question but also did not report CC.