Is Persistent Motor or Vocal Tic Disorder a Milder Form of Tourette Syndrome?

ABSTRACT:

Background

Persistent motor or vocal tic disorder (PMVT) has been hypothesized to be a forme fruste of Tourette syndrome (TS). Although the primary diagnostic criterion for PMVT (presence of motor or vocal tics, but not both) is clear, less is known about its clinical presentation.

Objective

The goals of this study were to compare the prevalence and number of comorbid psychiatric disorders, tic severity, age at tic onset, and family history for TS and PMVT.

Methods

We analyzed data from two independent cohorts using generalized linear equations and confirmed our findings using meta-analyses, incorporating data from previously published literature.

Results

Rates of obsessive-compulsive disorder (OCD) and attention deficit hyperactivity disorder (ADHD) were lower

SUBMITTER: Claudio-Campos K 

PROVIDER: S-EPMC8453968 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature