3Alzaabi A, Alseiari M, Mahboub B. Economic burden of asthma in Abu Dhabi:a retrospective study[J]. Clinicoecon Outcomes Res. 2014,6:445 - 450.
4Lee YH, Yoon S J, Kim E J, Kim YA, Seo HY, Oh IH. Eco- nomic burden of asthma in Korea [J]. Allergy Asthma Proc. 2011,32(6) :35 -40.
5Szefler SJ, Zeiger RS, Haselkorn T, et al. Economic burden of impairment in children with severe or difficult - to - treat asthma[J]. Ann Allergy Asthma Immunol. 2011, 107 (2): 110-119.
6Engelkes M, Janssens HM, de Ridder MA, de Jongste JC, Sturkenboom MC, Verhamme KM. Time trends in the inci- dence ,prevalence and age at diagnosis of asthma in children [J]. Pediatr Allergy I mmunol. 2015,26 ( 4 ) : 367 - 374.
7Kusehner WG. The asthma epidemic [J]. N Engl J Med. 2007,356(10) : 1073.
8Mallol J, Aguirre V, Aguilar P, et al. [Changes in the preva- lence of asthma in Chilean school age children between 1994 and 2002. International Study of Asthma and Allergies in Childhood (ISAAC) - - Chile phases I and III] [J]. Rev Med Chil. 2007,135 (5) :580 - 586.
9丁燕霞.安庆市0-14岁儿童哮喘流行病学调查及危险因素研究[D].临床医学.2012.
10Halfon N, Newacheck PW. Childhood asthma and poverty : differential impacts and utilization of health services [J]. Pediatrics. 1993,91 ( 1 ) :56 -61.