Left-Handedness In Children Maybe Linked To Congenital Disorder

by Aruna on  March 05, 2009 at 3:21 PM Child Health News
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 Left-Handedness In Children Maybe Linked To Congenital Disorder
According to a new study, kids with a congenital disorder, known as hemifacial microsomia (HFM), are more likely to develop left-handedness.

HFM is the second most common birth defect after cleft lips, and is a condition that affects the development of the lower half of the face. It most commonly affects the ears, mouth or jaw, and can occur on either side of the face or both.

Conducted by physician researchers from Hasbro Children's Hospital and Children's Hospital Boston, the new study was aimed at finding out whether the frequency of left-handedness increases in patients with HFM.

In the study, Albert Oh, MD, director of pediatric plastic and craniofacial surgery at Hasbro Children's Hospital, along with researchers from Children's Hospital Boston, analyzed 86 patients who were diagnosed with HFM and compared them to a control group using several factors. The study group comprised 48 percent male patients, with an average age of 13.5 years. Of those patients, 49 percent had predominant right side involvement of HFM, while 38 percent had left side involvement and 13 percent had almost equal involvement on both sides.

The control group included 96 children-44 per cent male with a mean age of 10 years.

After comparing to the control group, researchers found that the study group showed 26 percent were left-hand dominant for writing compared with only 11 percent in the control group.

They pointed out that for the patients who had bilateral involvement of their HFM, the side most affected was uniformly predictive of hand preference.

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hazell(Guest)

03/11/2009

My 6 year old son has left sided hemifacial microsomia and microtia and is left handed. He also prefers to kick a ball with his left leg. I always wondered if this leftsidedness was linked to his condition. I will pass this study onto his teachers at school.



03/06/2009

I must wonder on a conclusion based on handedness as a means of determining dominance.Historically parents and teachers have coersed people to use there right hand over the left and even the famous Author Dr Spock encouraged the practice .True dominance comes from the brain and alot of those right handers in our society show traits in writing of poor fine motor skills ,visual learning preferences and high creativity indicating right brain dominance .Handedness has never been a good indicator of brain dominance




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