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Table 2 Causes of chronic cough in different regions

From: Epidemiology of cough in relation to China

  N Asthma PNDS GERC EB Other causes
USA       
Irwin RS [27] (1980) 49 25% 29% 10%   CB 12%
Poe [52] (1989) 139 35% 26% 5% / CB 7%
Irwin RS [28] (1990) 102 24% 41% 21% / CB 5%
Mello [29] (1996) 88 14% 38% 40% / /
UK       
Brightling CE [31] (1999) 91 18% 24% 8% 13%  
Birring SS [53] (2004) 236 17% 12% 15% 7% PIC 7%
Kastelik JA [54] (2005) 131 24% 6% 22% / PIC 8%
Australia       
Carney IK [32] (1997) 30 23% 73% 93% 10% ACEI 23%
Turkey       
Ayik S [34] (2003) 36 3% 22% 22% 33% PIC 6%
Japan       
Fujimura M [41] (2005) 176 36% 18%* 2% / AC 29% #
Korea       
Joo JH [33] (2002) 92 16% 33% / 12% CB 15%
China       
Yang ZM [37] (2005 Shanghai) 105 51.4% 26.7% 1.9% 5.7% PIC 8.5%
Lai KF [35] (2006 Guangzhou) 194 14% 17% 12% 22% AC 12%
Lu GL [36] (2009 Beijing) 123 33.3% 24.4% 20.3% 4.9% AC 3.3%
Lai KF [19] (2012) 704 32.6% 18.6% 4.6% 17.2 AC 13.2%
  1. Abbreviations: PNDS Post-nasal drip syndrome, GERC Gastroesophageal reflux-related cough, EB Eosinophilic bronchitis, AC Atopic cough, PIC Post-infectious cough, CB chronic bronchitis, ACEI ACEI-related cough.
  2. # The definition of atopic cough in Japan is somewhat different from that in China.