Asthma sufferers admitted to hospital with swine flu (H1N1) are only half as likely to die as non-sufferers, a report has suggested.
Patients with asthma are about half as likely to need intensive care as other swine flu carriers, possibly because they are admitted to hospital more quickly and are treated promptly with steroids.
The results are despite asthmatic patients in the survey having greater breathing problems than swine flu patients without asthma.
The survey, led by a University of Liverpool team, said 25% of patients admitted to UK hospitals with swine flue in the outbreak of 2009 had asthma.
Data was examined for 1,520 patients admitted to 75 hospitals in 31 cities, with researchers finding those with asthma and swine flu were short of breath more often, needed supplemental oxygen more and suffered more severe respiratory distress than patients with swine flu but not asthma.