Asthma costs the UK health service at least 1.1 billion pounds each year, researchers have estimated. The findings are the result of the most comprehensive study of the state of asthma in UK to date.
Researchers found that at least three people die each day from asthma attacks. Experts say the majority of asthma deaths are preventable and greater focus on basic care is needed to cut the rates of severe attacks.
Researchers used information from national health surveys and anonymous administrative, health and social care records to build a picture of asthma in England, Scotland, Wales and Northern Ireland.
Of the 1.1b pounds cost of treating asthma in the UK, at least 666 million pounds is spent on prescription costs each year. Other costs include 160m pounds on GP consultations, 143m pounds on disability claims and 137m pounds on hospital care.
Researchers say their figures are likely to be substantial underestimates because they did not take into account people for whom asthma was not their main illness.
They say their findings confirm that the UK has one of the highest burdens of asthma in the world. More than 18 million people are treated for the condition at some stage in their lifetime.
The study is published in BMC Medicine journal and was funded by Asthma UK, with additional funding from Edinburgh Clinical Trials Unit and The Farr Institute.
Mome Mukherjee, of the Asthma UK Center for Applied Research and Edinburgh Clinical Trials Unit at the University of Edinburgh, said: "Our study pulled together multiple sources of routinely collected data across the administrative and health and social care sectors of the UK nations. Our findings offer the first comprehensive estimates of the burden of asthma in all the four nations of the UK."
Professor Aziz Sheikh, Director of the Asthma UK Centre for Applied Research at the University of Edinburgh, said: "Even with conservative assumptions, we find almost 100,000 people are admitted to hospital and there are at least 1000 deaths from asthma each year in the UK. This is unacceptable for a condition that, for most people, can be managed effectively with the right support from their GP. Greater focus on primary care is needed if we are to cut rates of severe asthma attacks, hospitalizations and deaths."