About one in five people with asthma (19%) report symptoms that could be classified as severe persistent asthma, according to NIH guidelines. Another one in five (22%) report symptoms that could be classified as moderate persistent asthma.
About one in five people with asthma (19%) report symptoms that could be classified as severe persistent asthma, according to NIH guidelines. Another one in five (22%) report symptoms that could be classified as moderate persistent asthma.