Context: The prognosis for asthma is generally good, especially for children with mild disease. Mortality has decreased over the last few decades due to better recognition and improvement in care. Globally it causes moderate or severe disability in 19.4 million people as of 2004 (16 million of which are in low and middle income countries). Of asthma diagnosed during childhood, half of cases will no longer carry the diagnosis after a decade. Airway remodeling is observed, but it is unknown whether these represent harmful or beneficial changes. Early treatment with corticosteroids seems to prevent or ameliorates a decline in lung function.

Question: What is the prognosis for asthma? 
Answer: generally good

Question: What has caused the mortality rate to decrease?
Answer: due to better recognition and improvement in care

Question: Worldwide, how many people suffer from asthma?
Answer: 19.4 million people as of 2004

Question: How many cases that are diagnosed in childhood make it past 10 years with asthma?
Answer: half of cases will no longer carry the diagnosis after a decade

Question: What is the prognosis after treating airway remodeling?
Answer: Unanswerable

Question: Why has airway remodeling decreased in children over the last few decades?
Answer: Unanswerable

Question: How many people will no longer be diagnosed with decline in lung function after 2004?
Answer: Unanswerable

Question: Is treatment with corticosteroids harmful or beneficial?
Answer: Unanswerable

Question: What is used to treat airway remodeling?
Answer: Unanswerable