Hasbro Children’s Hospital study links adverse childhood experiences to pediatric asthma
Robyn Wing, M.D., an emergency medicine physician at Hasbro Children’s Hospital, recently led a study that found children who were exposed to an adverse childhood experience (ACE) were 28 percent more likely to develop asthma. The rate of asthma occurrence further increased in children with each additional ACE exposure. The study, recently published in the Annals of Allergy, Asthma & Immunology, suggests that psychosocial factors may contribute to pediatric asthma.
“Asthma is one of the most common chronic childhood conditions, currently affecting 7 million, or 9.5 percent, of children in the U.S.,” said Wing. “The biological risk factors for asthma onset and severity, such as genetics, allergens, tobacco smoke, air pollution and respiratory infections, have been well established by previous studies. But, psychosocial factors, such as stress, which we know can be physically harmful, are now being examined as a risk factor for asthma in children.”
Wing’s team analyzed data from nearly 100,000 children and teens in the 2011-2012 National Survey of Children’s Health and compared parent or guardian reports of a child having asthma to whether a child had experienced an ACE at home. An ACE is classified as whether a child has ever:
Lived with a parent or guardian who got divorced or separated while child was present.
Lived with a parent or guardian who died.
Lived with a parent or guardian who served time in jail or prison while child was present.
Lived with anyone who was mentally ill or suicidal, or severely depressed for more than a couple of weeks.
Lived with anyone who had a problem with alcohol or drugs.
Saw or heard parents, guardians or any other adults in the home slap, hit, kick, punch or beat each other up.
Children exposed to one ACE had a 28 percent increase in reported asthma compared to those with no ACEs. These rates increase with each additional ACE, with children exposed to four ACEs having a 73 percent increase in reported asthma.
Most prior asthma studies have focused on neighborhood and urban-related issues, such as family poverty, poor quality housing and access to community resources. But, disruptive family relationships within the home can be a significant source of psychosocial stress for children.
Pediatric Asthma: Overview
For some children with asthma, their first asthmatic experience can be frightening - heavy wheezing, a tight chest, and shortness of breath can quickly catch their active, young bodies off-guard. For others, asthma can present subtly with exercise intolerance or a chronic cough. With recent advances in the management of asthma, this condition can be controlled for even the most energetic of youngsters.
If your child has asthma, he or she is not alone. In the United States, asthma affects 22 million people. It is the most common chronic disease of childhood. Today, 6 million children have asthma.
With the help of their medical care providers, routine monitoring, and proven treatments, they are still able to enjoy vibrant, healthy lives.
“Psychosocial stressors activate the sympathetic nervous system, which controls our ‘fight or flight’ responses when we experience stressful situations,” said Wing. “Increased activity of this system releases cortisol, a stress hormone, which has been shown to affect the activity of immune cells. Occasional increases in these hormones are protective, but excessively high or prolonged exposures, such as those experienced by children exposed to ACEs, can be harmful.”
Wing hopes this study, and others like it, will underscore the complex causes of asthma, enabling clinicians to better target preventative medications and other interventions. “Physicians taking care of children with asthma should take the time to ask about the child’s home situation,” said Wing. “For children experiencing stressors at home, encouraging efforts to increase the child’s capability of handling stressors, using methods such as individual or family therapy, may help target pediatric asthma.”
CONTROLLING ASTHMA TRIGGERS
The factors that set off or worsen asthma symptoms are called triggers. Identifying and avoiding asthma triggers are essential in preventing asthma flare-ups. Trigger avoidance is discussed in detail in a separate article.
Common asthma triggers generally fall into several categories:
- Respiratory infections
- Allergens (including dust, pollens, and furred animals)
- Irritants (such as tobacco smoke, aerosol sprays, some cleaning products)
- Cold air
After identifying potential asthma triggers, the parent and healthcare provider should develop a plan to deal with the triggers. If possible, the child should completely avoid or limit exposure to the trigger (eg, eliminate exposure to cigarette smoke). Recommendations may be made about decreasing allergen exposure for those children with allergies (eg, removing carpets from bedrooms, not allow pets to sleep in the child’s room). Children who have persistent problems despite efforts to avoid triggers may benefit from seeing an asthma specialist.
Exercise is an exception to the general rule about trigger avoidance. Exercise is encouraged for all children, including those with asthma. An asthma action plan should include steps to prevent and treat exercise-related symptoms.
Wing continued, “Stress should be viewed as a risk factor for asthma development and asthma exacerbations, much like tobacco smoke and dust mites. At the very least, clinicians can share with parents the impacts of ACEs on their child’s asthma, perhaps acting as a motivating factor for parents to remove or shield a child from a stressful home situation.”
A child is defined as having intermittent asthma if he or she has asthma with minimal symptoms and infrequent asthma flares. Specifically, children with intermittent asthma have the following characteristics:
- Symptoms of asthma occur two or fewer times per week
- Asthma does not interfere with daily activities
- Awakenings during the night due to asthma symptoms occur two or fewer times per month
- Asthma flares require oral glucocorticoids (also called corticosteroids or steroids) no more than once per year
A child with asthma symptoms that are triggered only during exercise (exercise-induced bronchoconstriction) might fit into this category. However, symptoms during exercise may also indicate that the child may have persistent asthma.
The principal affiliation of Wing is Hasbro Children’s Hospital, the pediatric division of Rhode Island Hospital and a part of the Lifespan health system in Rhode Island. Wing is also an instructor of pediatrics and emergency medicine at The Warren Alpert Medical School of Brown University.
About Hasbro Children’s Hospital
Hasbro Children’s Hospital in Providence, R.I., a part of the Lifespan health care system, is the premier pediatric facility for clinical care, research and education for Rhode Island and surrounding southeastern New England. A private, not-for-profit institution, it is the pediatric division of Rhode Island Hospital. Rhode Island Hospital is the principal teaching hospital of The Warren Alpert Medical School of Brown University, through which the department of pediatrics brings in $23 million in external research funding annually. Hasbro Children’s Hospital’s “All for One” commitment devotes all of its knowledge, experience, and passion for healing to each child in its care.
Annals of Allergy, Asthma & Immunology