Twins are significantly less likely to have asthma than singletons

September 21, 2000

Reduced risk of hospital admission for childhood asthma among Scottish twins: record linkage study

Twins run less risk of developing asthma than singletons, reports a study in this week's BMJ.

Strachan and colleagues analysed the admission data for respiratory illness of twins and singletons up to the age of 10 among Scottish hospitals. The study covered the years 1981 to 1994.

They found that twins' overall risk of admission for respiratory disease was significantly lower than that of singletons. Although twins were more likely to be admitted for acute bronchitis and bronchiolitis, they were much less likely than singletons to be admitted to hospital for asthma.

The authors conclude that the difference in admission rates might have been exaggerated if the admission of one twin with asthma led to preventive treatment of the other, but suggest that this is unlikely to explain the large difference in admission rates. Nor can birthweight explain the difference as low birthweight is associated with increased risk of asthma, but twins weigh less than singletons. Rather, they suggest that twinship is a special case of the protective effect of large families on allergies.
Dr David Strachan, Department of Public Health Sciences, St George's Hospital Medical School, London


Related Asthma Articles from Brightsurf:

Breastfeeding and risks of allergies and asthma
In an Acta Paediatrica study, exclusive breastfeeding for the first 3 months was linked with a lower risk of respiratory allergies and asthma when children reached 6 years of age.

Researchers make asthma breakthrough
Researchers from Trinity College Dublin have made a breakthrough that may eventually lead to improved therapeutic options for people living with asthma.

Physics vs. asthma
A research team from the MIPT Center for Molecular Mechanisms of Aging and Age-Related Diseases has collaborated with colleagues from the U.S., Canada, France, and Germany to determine the spatial structure of the CysLT1 receptor.

New knowledge on the development of asthma
Researchers at Karolinska Institutet in Sweden have studied which genes are expressed in overactive immune cells in mice with asthma-like inflammation of the airways.

Eating fish may help prevent asthma
A scientist from James Cook University in Australia says an innovative study has revealed new evidence that eating fish can help prevent asthma.

Academic performance of urban children with asthma worse than peers without asthma
A new study published in Annals of Allergy, Asthma and Immunology shows urban children with poorly controlled asthma, particularly those who are ethnic minorities, also suffer academically.

Asthma Controller Step Down Yardstick -- treatment guidance for when asthma improves
The focus for asthma treatment is often stepping up treatment, but clinicians need to know how to step down therapy when symptoms improve.

Asthma management tools improve asthma control and reduce hospital visits
A set of comprehensive asthma management tools helps decrease asthma-related visits to the emergency department, urgent care or hospital and improves patients' asthma control.

Asthma linked to infertility but not among women taking regular asthma preventers
Women with asthma who only use short-acting asthma relievers take longer to become pregnant than other women, according to research published in the European Respiratory Journal.

What are the best ways to diagnose and manage asthma?
A team of experts from The University of Texas Medical Branch at Galveston examined the current information available from many different sources on diagnosing and managing mild to moderate asthma in adults and summarized them.

Read More: Asthma News and Asthma Current Events is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to