Saturday, February 26, 2011

Asthma Management Model for Preschoolers Decreases ER Visits and Hospitalizations

Model for Managing Asthma in Preschoolers Leads to Dramatic Drop in ER Visits and Hospitalizations

ScienceDaily (Feb. 25, 2011) — Nearly one in eleven (8.6%) preschool children in the U.S. has been diagnosed with asthma and in some inner city neighborhoods, the figure is closer to one in seven. But, few asthma management programs are designed for parents of preschool children.


The Asthma Basics for Children (ABC) program, established by Columbia University's Mailman School of Public Health and a coalition of community service organizations, educators, parenting programs, and community pediatric providers, addressed this need with a multi-layered approach that offers educational activities to parents and children in 31 Northern Manhattan daycare centers as well as training to community pediatric providers. Following participation in the program, 85% percent of parents reported reducing their child's asthma triggers. The percent of children with asthma-related visits to emergency departments declined sharply from 74% to 47%, as did asthma-related hospitalizations, dropping from 24% to 11%.
Full study findings are published in the February 2011 Journal of Urban Health.

The ABC Program provided multiple opportunities for parents to learn about asthma signs and triggers in health units at the daycare centers. The multi-level intervention involved social workers, peer counselors and trained health educators, as in other community-based asthma coalitions ; but also promoted parent participation by offering flexible workshop scheduling; reinforcing messages to parents through daycare center activities for their children; and adding a provider-education component to improve communication between parents and providers. The Columbia researchers found that parent participation rates in the study exceeded rates found in most other preschool or school-based asthma programs.

"Although emergency room visits and hospitalization rates for this age group are more than twice that of older children with asthma, until we developed the ABC model, only a handful of programs had been designed to promote better asthma management by their parents," said Sally P. Findley, PhD, first author on the paper. "Our study suggests that the benefits of such a program are huge."

The study also found that over a two-week period the percentage of children reporting any daytime symptoms dropped from 78% to 42%, any nighttime symptoms fell from 81% to 49% during one month, and any daycare absences declined from 56% to 38% in the previous six months.

Another key element of the ABC strategy was linking asthma education activities in the daycare setting with improving the quality of asthma care by healthcare providers. Parents in this program confided that they were often reluctant to share concerns with their physician, especially about possible side effects of daily use of medications to control asthma. After participating in the program, 89% found it easier to talk to their doctor, and 80% said they were confident in their ability to manage their child's asthma. In the group without parent training, only 31% had taken at least one step toward reducing triggers, 49% reported that talking to their child's doctor was easier, and 49% expressed confidence in managing their child's asthma. When parents participated in the program, those reporting these behaviors increased to 40%, 62%, and 71%, respectively. Children with both parents and healthcare providers reported the greatest increases in these behaviors: 76%, 82%, and 86%, respectively. The two-pronged strategy of strengthening communication skills of parents and their child's healthcare provider is likely to have contributed to the changes in asthma management behaviors, improved confidence, and improved asthma control, observes Dr. Findley.

Asthma control outcomes improved progressively as the child's exposure to ABC's multi-layered interventions increased. "This study show that you can improve asthma outcomes for preschoolers with an approach that integrates activities for children, parents, teachers, and healthcare providers, noted Dr. Findley, clinical professor of Sociomedical Sciences and Population and Family Health at the Mailman School. "The greatest impact occurs when you combine education interventions at all of these levels."
The project was funded by the CDC's Controlling Asthma in America's Cities Project after an assessment by the Northern Manhattan Community Voices Collaborative, an academic-community partnership, documented the need for an asthma intervention targeting local preschoolers.
The above story is reprinted (with editorial adaptations by ScienceDaily staff) from materials provided by Columbia University's Mailman School of Public Health, via EurekAlert!, a service of AAAS.

Journal Reference:
  1. Sally E. Findley, Gloria Thomas, Rosa Madera-Reese, Natasha McLeod, Sreelata Kintala, Raquel Andres Martinez, Benjamin Ortiz, Elizabeth Herman. A Community-Based Strategy for Improving Asthma Management and Outcomes for Preschoolers. Journal of Urban Health, 2011; 88 (S1): 85 DOI: 10.1007/s11524-010-9479-8

Monday, February 14, 2011

Babies Who are Given Antibiotics Have a 50% Increased Risk of Developing Asthma by Age 6

Early Antibiotic Use Can Lead to Increased Risk of Childhood Asthma, Study Suggests

ScienceDaily (Jan. 27, 2011) — When babies are given antibiotics, their risk of developing asthma by age 6 may increase by 50 percent. This relationship between antibiotic use in babies less than six months old and risk of developing asthma was documented in a study conducted by Norwegian University of Science and Technology (NTNU) researcher Kari Risnes.

The research was conducted while Risnes was a visiting researcher at Yale University, and resulted in the recent online publication of the article in the American Journal of Epidemiology.
"Asthma is a very common disease. At the same time, about one-third of infants in our study were treated with antibiotics by the time they were six months old. This proportion is about 30 per cent in other Western countries," says Risnes.
The Yale study followed 1400 children and mothers from the beginning of pregnancy until the children were six years old.
"We found that the risk that children would have asthma as six year olds was 50 per cent higher when they had been given antibiotics as a baby. That is a significant increase," Risnes says.
While previous research has suggested an association between asthma and antibiotics, those studies may have been biased because antibiotics are used to treat respiratory tract infections that could themselves be early symptoms of asthma.
The study sought to eliminate this bias by excluding children who were treated for respiratory infections from the study. The study also considered a long list of other risk factors -- such as whether or not the mother, father or a sibling had asthma. That aspect also brought a surprise, Risnes said.
"We actually found that the relationship between antibiotic use in the first six months of life and asthma was particularly strong in children from families without a history of asthma," said Risnes.
"What we think is that antibiotics interfere with the beneficial bacteria found in the gut. These bacteria aid in helping the baby's immune system to mature. When the bacteria are affected, it can cause the child to have an "immature" immune system, which in turn leads to allergic reactions," says Risnes.
She believes that the results should remind doctors and policymakers of the consequences of overuse of antibiotics. While in Norway, for example, the policy is to limit the prescription of antibiotics "this is an additional reminder to doctors and parents that we should avoid unnecessary use whenever possible," she said.
The above story is reprinted (with editorial adaptations by ScienceDaily staff) from materials provided by The Norwegian University of Science and Technology (NTNU).

Journal Reference:
  1. K. R. Risnes, K. Belanger, W. Murk, M. B. Bracken. Antibiotic Exposure by 6 Months and Asthma and Allergy at 6 Years: Findings in a Cohort of 1,401 US Children. American Journal of Epidemiology, 2010; 173 (3): 310 DOI: 10.1093/aje/kwq400