Navigation Links
Overweight 7-Year-Olds Face Higher Risk of Asthma
Date:12/24/2011

By Jenifer Goodwin
HealthDay Reporter

FRIDAY, Dec. 23 (HealthDay News) -- Children who are overweight or obese during early childhood have a greater risk of having asthma at age 8 than normal-weight kids, a new study finds.

Researchers in Sweden followed more than 2,000 children for eight years, using preschool and school health records to track their height and weight at ages 1 year, 18 months, 4 years and 7 years. Parents completed questionnaires about their child's health, including asthma and allergy status.

Children who had persistently high BMI (body mass index) -- in the 85th percentile or above -- throughout early childhood, or who were normal-weight toddlers but gained weight and had a high BMI at age 7, were more likely to have asthma than kids who had a normal body weight.

However, kids who had a high BMI at an early age -- at 18 months or 4 years -- but slimmed down by age 7 were not at higher risk of asthma than other kids.

"If the children are only overweight during the early period before 4 years of age we do not see an increased risk of asthma during school age," said lead study author Jessica Magnusson, a Ph.D. student at the Institute of Environmental Medicine in Stockholm. "However, if they are persistently overweight, or overweight at a later age -- age 7 -- then there is an association with asthma at age 8."

Asthma, characterized by inflammation of the airways, may cause wheezing, coughing, chest tightness and trouble breathing.

The study is in the January issue of Pediatrics.

At age 8, about 6 percent of the kids in the study had asthma. Those overweight at age 4 and age 7 had a nearly 2.5 times greater risk of having asthma.

Researchers excluded kids who'd had early symptoms of wheezing or had been diagnosed with asthma prior to age 2.

Researchers also took into account parental history of asthma. A high BMI was associated with an increased risk of asthma only in kids without parental history of the disease, according to the study.

Researchers pointed out that their study does not show that being overweight or obese causes asthma. However, the march upward in childhood obesity rates has coincided with an increase in asthma rates, leading some to speculate that the two may be linked biologically.

One theory is that leptin, a hormone found in fat tissue, may contribute to an inflammatory immune response that could trigger asthma, which is a chronic inflammation of the airways.

A prior study found higher leptin levels in overweight children, and that even among overweight children with similar BMIs, kids with asthma tended to have higher leptin levels.

The current study also found an association between being overweight at age 7 and sensitization to airborne allergens. Sensitization, or the presence of certain antibodies in the blood, often indicates an allergy to a particular substance, but researchers did not track actual symptoms.

Getting control of a child's weight is important to prevent asthma and other conditions that are showing up more in kids, including diabetes and high cholesterol, said Nancy Copperman, director of public health initiatives in the Office of Community Health at North Shore-LIJ Health System in Great Neck, N.Y.

And obesity and asthma can feed off each another. Children experiencing asthma symptoms and having difficulty breathing may be less apt to participate in physical activity, while parents may worry about their asthmatic kids and not allow them to do certain things, such as run outside in the cold, Copperman said.

"What this study argues for is prevention," she said. "The kids who were heavier and got leaner didn't have the increased incidence of asthma, while those who were lean and got heavier or were heavy from the beginning did ... Obesity is not a cosmetic problem. It has real health consequences."

More information

The American Academy of Child & Adolescent Psychiatry has more on childhood obesity.

SOURCES: Jessica Magnusson, Ph.D., student, Institute of Environmental Medicine, Stockholm, Sweden; Nancy Copperman, R.D., director, public health initiatives, Office of Community Health, North Shore-LIJ Health System, Great Neck, N.Y.; January 2011, Pediatrics


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved  

Related medicine news :

1. Stress reduction and mindful eating curb weight gain among overweight women
2. Being overweight not such a stigma for African American women
3. Most Doctors Dont Tell Parents Kids Are Overweight
4. Crash experts find car seats protect overweight kids, too
5. Dairy foods may improve bone health during diet and exercise in overweight premenopausal women
6. Overweight Teens Dont Seem to Grasp Weight Loss Rules
7. Study finds overweight teens want to lose weight, going about it the wrong way
8. Study: Overweight older women have less leg strength, power
9. Overweight Women Believe Loved Ones Judge Them More Harshly Than They Do
10. Being Overweight May Take Years Off Seniors Lives
11. Weight loss improves sexual health of overweight men with diabetes
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Overweight 7-Year-Olds Face Higher Risk of Asthma
(Date:4/24/2017)... ... ... My T Chai, a South African company that creates a number of ... a popular website specializing in sales of nutritional products. , Chai tea is ... It spread across Asia and Africa quickly, and today recipes vary from region to ...
(Date:4/24/2017)... ... April 24, 2017 , ... ... expected to be diagnosed globally; approximately 25,000 of them will be malignant.(1) As ... use of this type of healthcare model in the diagnosis and treatment of ...
(Date:4/24/2017)... , ... April 24, 2017 , ... As a former ... a thousand words. The good news for single women is that she put all ... is available on April 25th. Joan's insight, personal experiences and sparkling sense of humor ...
(Date:4/24/2017)... ... April 24, 2017 , ... A new global study of ... student well-being has seriously declined. "When disenfranchised youth from the heart of our ... State to turn the historic multi-ethnic and multi-religious powerhouses of the Middle East ...
(Date:4/24/2017)... ... April 24, 2017 , ... Miami ... attending the 2017 Oral Reconstruction Foundation’s 2017 Symposium on Tissue Regeneration and Implant ... will present its annual Global Symposium at the Fontainebleau Hotel located in Miami ...
Breaking Medicine News(10 mins):
(Date:4/19/2017)... , April 19, 2017  IRIDEX Corporation (Nasdaq: ... release financial results for the first quarter 2017 after ... The Company,s management team will host a corresponding conference ... ET. Investors interested in listening to the ... for domestic callers or (703) 326-3030 for international callers, ...
(Date:4/19/2017)... DALLAS , April 19, 2017  Vanderbilt ... the first patients in Nashville , ... the Lower Esophageal Sphincter Stimulation for GERD (LESS GERD) ... designed to provide long-term reflux control by restoring normal ... affects nearly 65 million people in the ...
(Date:4/19/2017)... -- Companion animal vaccines are ... such as canine, avian and feline. ... as Attenuated Live Vaccines, Conjugate Vaccines, Inactivated Vaccines, ... Vaccines. Attenuated live vaccines are derived from disease-causing ... been weakend under laboratory conditions. Conjugate vaccines are ...
Breaking Medicine Technology: