Figure 1.1. Children (top) and All Ages (bottom): Twelve-month Asthma Prevalence 1980-1996, Lifetime Diagnosis and 12-month Attack Prevalence 1997-2004, and Current Prevalence 2001-2004

Asthma prevalence among children rose markedly between 1980 and 1996, while their asthma attacks remained relatively constant since measured in 1997

All Ages: Asthma prevalence rose steadily between 1980 and 1996, while asthma attacks remained stable since measured in 1997

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Source: Centers for Disease Control and Prevention, National Center for Health Statistics, National Health Interview Survey.

Note: Twelve-month asthma prevalence for all ages was collected from 1982 to 1996, a shorter period than for children only.

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