Epidemiology of cough in relation to China

Lai, Kefang; Pan, Jiayu; Chen, Ruchong; Liu, Baojuan; Luo, Wei; Zhong, Nanshan

doi:10.1186/1745-9974-9-18

Cough

Table 1 Prevalence of cough in different regions

From: Epidemiology of cough in relation to China

Surveys	Region	N	Definition of chronic cough	Prevalence(%)
Barbee RA [7] (1991)	Arizona	1109	Having cough or phlegm on most days, as much as 3 months of the year , lasting for ≥ 2 years	18
Barbee RA [7] (1991)	US	1109		18
Lundback B [14] (1991)	Norrbotten	6610		11
Lundback B [14] (1991)	Sweden	6610		11
Cullinan P [10] (1993)	southeast England	9077	Cough every day or one-half of the days in a year.	16
Ludviksdottir D [15] (1996)	Uppsala	623	Usually cough or production of phlegm in the morning during day or night in the winter	11
Ludviksdottir D [15] (1996)	Sweden	623		11
Zemp E [9] (1999)	8 areas	9651	Usually cough during the day or at night, on most days for as much as 3 months each year.	Smoker: 9.2
Zemp E [9] (1999)	Switzerland	9651		Nonsmoker:3.3
Coultas DB [16] (2001)	81 counties	5743	Having cough or phlegm on most days for ≥ 3 consecutive months per year	9.3
Coultas DB [16] (2001)	US	5743		9.3
Janson C [11] (2001)	16 countries	18277	Usually cough or production of phlegm in the morning or during the day or night in the winter	33
Janson C [11] (2001)	Europe	18277		33
Cerveri I [8] (2003)	9 areas	18000	Having cough and phlegm on most days for as much as 3 months per year and for at least 2 successive years	11.9
Cerveri I [8] (2003)	Italy	18000		11.9
Carter ER [17] (2006)	Seattle	2397	Having a daily cough or phlegm as often as 3 months out of the year.	7.2
Carter ER [17] (2006)	US	2397		7.2
Ford AC [12] (2006)	Yorkshire	4003	Experienced bouts or spasms of coughing in the previous 2 months.	12
Ford AC [12] (2006)	UK	4003		12
Lai KF [13] (2006)	Guangzhou	1087	Cough lasting for > 8 weeks	10.9
	China

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