• COVID-19
  • Allergies and Infant Formula
  • Pharmacology
  • Telemedicine
  • Drug Pipeline News
  • Influenza
  • Allergy, Immunology, and ENT
  • Autism
  • Cardiology
  • Emergency Medicine
  • Endocrinology
  • Adolescent Medicine
  • Gastroenterology
  • Infectious disease
  • Nutrition
  • Neurology
  • Obstetrics-Gynecology & Women's Health
  • Developmental/Behavioral Disorders
  • Practice Improvement
  • Gynecology
  • Respiratory
  • Dermatology
  • Diabetes
  • Mental Health
  • Oncology
  • Psychiatry
  • Animal Allergies
  • Alcohol Abuse
  • Rheumatoid Arthritis
  • Sexual Health
  • Pain

NVLD more prevalent than previously thought

Article

Not well understood or often studied, nonverbal learning disability (NVLD) may be more prevalent than experts previously believed, according to a new study.

The true prevalence of nonverbal learning disability (NVLD), a neurodevelopmental disorder linked to difficulties with math calculations, fine motor skills, and social skills, has been unknown, with only a few previous studies. A new study in JAMA Network Open sought to close that gap and found that NVLD was more prevalent than earlier research had found.1

Investigators used 3 independent samples of children and adolescents. Two of the samples overselected for children with psychiatric disorders-Healthy Brain Network (HBN), January 1, 2015, to December 31, 2019, and Nathan Kline Institute–Rockland Sample (NKI), January 1, 2011, to December 31, 2018-and the other sample overselected for active maternal smoking during pregnancy-Saguenay Youth Study (SYS), January 1, 2003, to December 31, 2012. The criteria for NVLD was based on the clinical record of deficits in visual-spatial reasoning and impairment in 2 of 4 domains of function: fine-motor skills, math calculation, visual executive functioning, and social skills.

The 3 samples included 2596 children and adolescents. The prevalence of the NVLD was 2.78% in the HBN sample, 3.9% in the NKI sample, and 3.10% in the SYS sample, which means the estimated range for the disorder is 3% to 4%. When extrapolating this prevalence to the US population of persons aged younger than 18 years, there would be an estimated 2.2 to 2.9 million children who had NVLD.

The researchers concluded that the prevalence of NVLD highlights the need to increase awareness of the condition, identify the underlying neurobiological mechanisms, and urge the development and testing of potential interventions for NVLD.

References:

1.    Margolis AE, Broitman J, Davis JM, et al. Estimated prevalence of nonverbal learning disability among North American children and adolescents. JAMA Netw Open. 2020;3(4):e202551. doi: 10.1001/jamanetworkopen.2020.2551

Related Videos
Scott Ceresnak, MD
Importance of maternal influenza vaccination recommendations
Reducing HIV reservoirs in neonates with very early antiretroviral therapy | Deborah Persaud, MD
Samantha Olson, MPH
Deborah Persaud, MD
Ari Brown, MD, FAAP | Pediatrician and CEO of 411 Pediatrics; author, baby411 book series; chief medical advisor, Kabrita USA.
Steven Selbst, MD
© 2024 MJH Life Sciences

All rights reserved.