Featured Research

from universities, journals, and other organizations

Almost 17% of Spanish children suffer tics

Date:
September 8, 2011
Source:
Plataforma SINC
Summary:
Experts have confirmed it: Tics are not a rare or uncommon disorder. It is the second study to be conducted in Spain to date revealing that the prevalence of these motor disorders in the child population is almost 17%. The incidence is greater in boys than girls, and they tend to disappear or reduce with age.

Tics are the most common movement disorder in children and young people.
Credit: SINC

Experts have confirmed it: tics are not a rare or uncommon disorder. It is the second study to be conducted in Spain to date, and the first of great importance, revealing that the prevalence of these motor disorders in the child population is 16.86%. The incidence is greater in boys than girls, and they tend to disappear or reduce with age.

Related Articles


"Tics are a very common disorder," explains Esther Cubo, researcher from the Yagüe de Burgos General Hospital and the new study's lead author. "Before, it was believed to be a rare condition, and since studies were only conducted for people that consulted the doctor, only severe tics were observed. Now we have noticed that most are mild disorders that do not have any functional repercussion."

Although various epidemiological studies have been conducted, this is the second in Spain, with a larger population size than the first one, which only recorded data in two school centres. This study determines the prevalence of tics in a sample of 1158 school children in the province Burgos, but the authors believe that these figures can be extrapolated to the rest of the Spanish population.

The results, published in the journal Pediatric Neurology reveal that while 16.86% of children in ordinary schools had tics, the number rose to 20.37% in special education centres. In both cases, it was more frequent in boys than girls.

Experts also analysed other related disorders, such as attention deficit disorder. Tics fluctuate and increase in situations of stress, such as family or school problems. The most severe diagnosis were chronic motor tic disorders (6.07%) and Tourette's syndrome (5.26%).

"There is still a lack of knowledge, even among medical staff, as to why diagnosing tics has to be associated with coprolalia -insults, swear words," highlights Cubo. "In fact, it is classified as being a rare disease, but we have to consider it as being common so that it is diagnosed correctly."

Neurological problem

Tics are hereditary in neurological development during infancy, characterised by sudden repetitive and stereotyped movements and sounds, which longitudinally and gradually improves in most subjects. "It is the most common movement disorder for children and teenagers," adds the researcher.

The epidemiological studies show that as the years pass, if it does not disappear completely, it does become less intense. Tourette's syndrome, chronic phonic disorder, transitory tics and unspecified tics all have tics as a symptom.

Although the cause is still not known, experts point out that it involves an involuntary movement suppression disorder in the circuit between the basal ganglia and motor cortex. Functional neuroimaging has proven that tic sufferers have certain areas in the brain that are overactive or which do not activate correctly to suppress these involuntary movements or sounds.


Story Source:

The above story is based on materials provided by Plataforma SINC. Note: Materials may be edited for content and length.


Journal Reference:

  1. Esther Cubo, José María Trejo Gabriel y Galán, Vanesa Ausín Villaverde, Sara Sáez Velasco, Vanesa Delgado Benito, Jesús Vicente Macarrón, José Cordero Guevara, Elan D. Louis, Julián Benito-León. Prevalence of Tics in Schoolchildren in Central Spain: A Population-Based Study. Pediatric Neurology, 2011; 45 (2): 100 DOI: 10.1016/j.pediatrneurol.2011.03.003

Cite This Page:

Plataforma SINC. "Almost 17% of Spanish children suffer tics." ScienceDaily. ScienceDaily, 8 September 2011. <www.sciencedaily.com/releases/2011/09/110908080844.htm>.
Plataforma SINC. (2011, September 8). Almost 17% of Spanish children suffer tics. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2011/09/110908080844.htm
Plataforma SINC. "Almost 17% of Spanish children suffer tics." ScienceDaily. www.sciencedaily.com/releases/2011/09/110908080844.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com
From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) — The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Newsy (Nov. 25, 2014) — Need another reason to eat yogurt every day? Researchers now say it could reduce a person's risk of developing type 2 diabetes. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins