Navigation Links
Hyperactivity: Increased prevalence of children with ADHD and the use of stimulants

This release is available in French.

A new study from the Universit de Montral shows an increase in prevalence of Canadian children diagnosed with attention-deficit hyperactivity disorder (ADHD) and in the use of medications associated with ADHD in school-age children.

The study, Prevalence of Prescribed Attention-Deficit Hyperactivity Disorder Medications and Diagnosis Among Canadian Preschoolers and School-Age Children: 1994-2007, was conducted by the doctoral student in sociology, Marie-Christine Brault, under the supervision of Professor ric Lacourse of the Research Unit on Children's Psychosocial Maladjustment (GRIP) at the Universit de Montral. It was published in the most recent issue of the Canadian Journal of Psychiatry.

Increased use of medications

In 2000, 43% of Canadian children with ADHD were taking medications, while in 2007, the number was 59%. The study's data comes from a sample of Canadian children aged 3 to 9 who participated in the National Longitudinal Survey on Children and Youth.

"The increased use of medications by children with ADHD in Canada is a reflection of the global trend, says Marie-Christine Brault, lead author of the study. Consumption of drugs like Ritalin, to name but one, has more than doubled since 1994, when it was 1.3%."

The study also showed a decrease in the off-label use of ADHD medications, except for preschoolers, for whom there was a slight increase. "Some doctors may be prescribing ADHD medications to treat other problems such as oppositional defiant disorder or conduct disorder. This may explain the slight increase," says Marie-Christine Brault.

Boys take more medications

According to the results of the study, boys' prevalence of medication use, at around 3%, was higher than that of girls; however, girls showed the steepest increase over time, up to 2.1-fold. This rise occurred essentially in the 1990s, while for boys, it was observed in the 2000s.

Increased use of medications among school-age children

Preschoolers' prevalence of both ADHD diagnosis and prescribed medications stayed stable between 1994 and 2007 (1% or less), while that of school-age children increased nearly two-fold, suggesting, for the authors, that school environment plays a role in the increased use of medications.

"Can the upward trend in ADHD diagnoses explain the increased use of medications? Or is the opposite true?" asks Marie-Christine Brault. "Both hypotheses are plausible. Identifying the factors associated with these trends is the only way to answer the question: Are children with ADHD over-medicated?"

The question is not banal, because attention-deficit hyperactivity disorder is the most common mental illness in children.


Contact: Julie Gazaille
University of Montreal

Related medicine news :

1. Childhood cancer patients: Increased risk of infertility
2. First study of its kind finds no increased risk of heart disease for kidney donors
3. New indicator may help identify patients with increased risk from throat cancer
4. Study finds federal amendments increased gun sales diverted to criminals
5. Gestational diabetes and low socioeconomic status linked with increased risk of ADHD in offspring
6. Poor sleep linked to increased health and behavior problems in young diabetics
7. More than other drugs, injected meth is associated with an increased risk of attempted suicide
8. Some muscular dystrophy patients at increased risk for cancer
9. Increased arm swing asymmetry is early sign of Parkinsons disease
10. People with DFNA2 hearing loss show increased touch sensitivity
11. Diagnosis of tuberculosis is increased in postpartum women
Post Your Comments:
(Date:11/24/2015)... Port Richey, FL (PRWEB) , ... November 24, 2015 , ... ... it deems a growing epidemic as deaths from prescription opioids in the United States ... heroin and cocaine. In 2013 alone, opioids were involved in 37 percent of all ...
(Date:11/24/2015)... ... November 24, 2015 , ... Serenity Point Rehabilitation, a holistic treatment ... video interviews with some of the staff members at their recovery center. The videos ... as well as some of the things that make their recovery program so unique. ...
(Date:11/24/2015)... PALMYRA, Wis (PRWEB) , ... November 24, 2015 ... ... Process scholarship award at Cleveland University-Kansas City (CU-KC), in Overland Park, ... scholarship from Chiropractor and University President Carl S. Cleveland III on October 16. ...
(Date:11/24/2015)... N.Y. (PRWEB) , ... November 24, 2015 , ... Autism ... Tuesday, the global movement driven by social media and the generosity of people around ... then encourage their social media networks to give – and share the personal stories ...
(Date:11/24/2015)... , ... November 24, 2015 , ... ... of patented products, announces Fragrance by Marcelle, a cosmetic invention which offers a ... & Fragrance Manufacturing Market in the US is worth $3 billion annually," says ...
Breaking Medicine News(10 mins):
(Date:11/24/2015)... 24, 2015 Avery Biomedical Devices (ABD), manufacturer ... announce the appointment of Anders Jonzon , MD; ... Dr. Jonzon is a Physiologist ... Hospital, Uppsala University, Uppsala and Children,s Hospital, Karolinska, ... a fellow at the Cardiovascular Institute (UCSF). His research ...
(Date:11/24/2015)... 24, 2015  Ascendant Solutions, Inc. (Pink Sheets: ASDS ... of Directors has declared a special 1 percent stock dividend ... payable December 14, 2015, to shareholders of record December 7, ... additional shares of common stock. --> ... a strong endorsement of our confidence in Ascendant,s growth strategy ...
(Date:11/24/2015)... st  Scientific Assembly and Annual Meeting of the Radiological Society ... Chicago on Nov-29 th through Dec-4 ...  Scientific Assembly and Annual Meeting of the Radiological Society of ... Chicago on Nov-29 th through Dec-4 th , ... present its revolutionary whole body CZT digital SPECT/CT solution at the ...
Breaking Medicine Technology: