Asthma in an Urban Population in Portugal: A prevalence study

BMC Public Health

Table 5 International comparison of asthma prevalence rates for all age groups

Year	Study	Country	Prevalence %
2003	Brogger et al [46]	Norway	9.3
2005	Stcok et al [43]	Germany	6.34
2006	Wilson et al [44]	Australia	12.2
2007	National Surveillance for Asthma US [42]	USA	7.2
2009	Lötvall et al [45]	Sweden	8.3
2009	Correia-de-Sousa et al	Portugal	10.2

ISSN: 1471-2458