Table 1 Prevalence of asthma symptoms in the 13–14 year age group by region
Region (no of centres)YearNo*Current wheezeAsthma everNo (video)Current wheeze (video)Symptoms of severe asthma (total participants denominator)Symptoms of severe asthma† (current wheeze denominator)Symptoms of severe asthma without asthma ever† (current wheeze denominator)
No (%)No (%)No (%)No (%)No (%)No (%)
Africa (22)2002663349275 (14.0)7150 (10.8)166271749 (10.5)5937 (9.0)4729 (51.0)2639 (28.5)
Asia-Pacific (27)2000996888737 (8.8)10831 (10.9)839174583 (5.5)3837 (3.8)3496 (40.0)1747 (20.0)
Eastern Mediterranean (16)2001517084801 (9.3)3847 (7.4)363311998 (5.5)2721 (5.3)2265 (47.2)1381 (28.8)
Indian subcontinent (19)2002558153894 (7.0)3103 (5.6)429602166 (5.0)2231 (4.0)1877 (48.2)953 (24.5)
Latin America (56)200216591726352 (15.9)22612 (13.6)842788643 (10.3)11941 (7.2)10080 (38.3)4976 (18.9)
North America (7)200214243730750 (21.6)24693 (17.3)13942118163 (13.0)16032 (11.3)14956 (48.6)5999 (19.5)
Northern and Eastern Europe (28)2002720927012 (9.7)3651 (5.1)380911251 (3.3)2704 (3.8)2446 (34.9)1643 (23.4)
Oceania (14)2002363856306 (17.3)8015 (22.0)312583231 (10.3)2757 (7.6)2635 (41.8)795 (12.6)
Western Europe (44)200210830915503 (14.3)17065 (15.8)532204088 (7.7)6664 (6.2)6283 (40.5)2349 (15.2)
English language centres‡ (20)200217652440453 (22.9)35067 (19.9)15362619825 (12.9)19809 (11.2)18614 (46.0)7094 (17.5)
Global total (233)2002798685112630 (14.1)100967 (12.6)52610345872 (8.7)54824 (6.9)48767 (43.3)22482 (20.0)
  • Symptoms of severe asthma: respondents with current wheeze who had ⩾4 attacks of wheeze in the last year or had ⩾1 nights per week sleep disturbance from wheeze in the last year or had wheeze affecting speech in the last year.

  • *Number of children. †The data presented are restricted to respondents who answered “yes” to the question about current wheeze. ‡Centres in Australia, Canada, Channel Islands, Isle of Man, New Zealand, Republic of Ireland, the UK and the USA.