Chapter 3, Appendix Figure 2:
Asthma admission rates for European countries, age 5-14 v 45+ years.

Rank correlation: r = 0.53, p=0.01

Source: WHO Hospital Morbidity Database, accessed November 2013.

Admissions per 100,000 per year, age 45+
Admissions per 100,000 per year, age 5-14