Skip Navigation Links
ICD Code: 493. Asthma



ICD Code: 493. Article Review
Title: Miyamoto T; "Epidemiology of Pollution-Induced Airway Disease in Japan." Allergy; V.52 (Suppl 38); 1997; p30
      PREVALENCE IN JAPAN: There has been a gradual increase in the incidence of allergic diseases during the last half century. Around 50 years ago, asthmatic patients accounted for approximately 1% of the population in Japan; this has now risen to more than 3% in adults and 3% to 5% in school children. Several large scale epidemiological studies are ongoing in Japan. A prevalence study of allergic diseases was undertaken in several health centers and schools, involving 8288 school children and 10,937 adults. This study showed the prevalence of asthma to be 6.4% in children and 3.0% in adults. The prevalence was higher in urban areas compared with rural mountain areas. Another study on 1054 Japanese school children showed a prevalence of asthma of 5.9%.

Search Criteria: Text - Allergy; V.52 (Suppl 38); 1997; p30