Data sources

Analyses, interpretations and conclusions are the responsibility of the authors and not the World Health Organization.


Hospital admissions

Asthma prevalence in children

  • Lai CKW, Beasley R, Crane J, et al. Global variation in the prevalence and severity of asthma symptoms: Phase Three of the International Study of Asthma and Allergies in Childhood. Thorax 2009; 64: 476–483.

Asthma prevalence in adults

COPD prevalence

  • Buist AS, McBurnie MA, Vollmer WM, et al. International variation in the prevalence of COPD (the BOLD Study): a population-based prevalence study. Lancet 2007; 370: 741–750.
  • Miravitlles M, Soriano JB, Garcia-Rio F, et al. Prevalence of COPD in Spain: impact of undiagnosed COPD on quality of life and daily life activities. Thorax 2009; 64: 863–868.
  • Vanfleteren LE, Franssen FM, Wesseling G, et al. The prevalence of chronic obstructive pulmonary disease in Maastricht, the Netherlands. Respir Med 2012; 106: 871–874.

Lung cancer incidence

Tuberculosis notifications and deaths

Smoking prevalence

Global Burden of Disease Study

See the entire Burden of Lung Disease Chapter