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1. Introduction
2. Agenda
3. Defining prevalence
4. Point prevalence vs. period prevalence
5. Defining 'asthma' for surveys
6. Asthma: from symptoms to drug use
7. Clinical assessments (objective markers)
8. Estimates from surveys
9. Representative population based sample
10. Problems that might occur
11. In mid 1980's
12. Two international initiatives
13. 'Symptom-based' questionnaires in adults
14. Self reported 'asthma' definition in adults
15. 'Symptom-based' asthma definition in children
16. Prevalence of asthma
17. Prevalence of atopy
18. Bronchial responsiveness to methacholine
19. Geographical variation: 'wheeze or whistling'
20. Geographical variation
21. Estimating change in prevalence
22. Increases in asthma prevalence in Birmingham
23. Increase in prevalence of asthma in Wales
24. Prevalence of asthma and exercise-induced drop
25. Prevalence of other allergy-associated disease
26. The Finnish military recruits study (1)
27. Change in prevalence of atopy in Greenland
28. Prevalence of asthma in boys by year of birth (UK)
29. Sensitisation to at least one allergen by age
30. Sensitisation to any allergen by age and cohort
31. Emerging evidence
32. Alternative explanations
33. Wheezing and whistling in 6-7 year old
34. Wheezing and whistling in 13-14 year old
35. Change in prevalence of disease in Wales
36. The Finnish military recruits study (2)
37. Reasons for increase in asthma
38. Hayfever and asthma associate with family size
39. What causes should we look for?
40. Risk factors in two British birth cohorts
41. Conclusion

Topics Covered

• Measuring asthma prevalence in community studies
• Geographical variation in prevalence of disease
• Early studies showing an increase in disease
• More recent studies of time trends
• Possible reasons for changing prevalence of disease

Links

Series:

• Advances in Asthma

Categories:

• Clinical Practice
• Pharmaceutical Sciences

Therapeutic Areas:

• Immunology & Inflammation
• Respiratory Diseases

Talk Citation

Publication History

• Published on December 29, 2011

Financial Disclosures

• Dr. Deborah Jarvis has not informed HSTalks of any commercial/financial relationship that it is appropriate to disclose.