RT info:eu-repo/semantics/article
T1 Prevalence of Tics in Schoolchildren in Central Spain: A Population-Based Study
A1 Cubo Delgado, Esther
A1 Trejo Gabriel y Galán, José Mª
A1 Ausín Villaverde, Vanesa
A1 Sáez Velasco, Sara
A1 Delgado Benito, Vanesa
A1 Macarrón Vicente, Jesus
A1 Cordero Guevara, José
A1 Louis, Elan D.
A1 Benito-León, Julián
K1 Sistema nervioso-Enfermedades
K1 Nervous system-Diseases
K1 Psicología
K1 Psychology
K1 Enseñanza primaria
K1 Education, Primary
AB Tic disorders constitute a neurodevelopmental disorder of childhood. This study sought to determine the prevalence of tic disorders in a school-based sample. A randomized sample of 1158 schoolchildren, based on clusters (classrooms) in the province of Burgos (Spain), was identified on a stratified sampling frame combining types of educational center and setting (mainstream schools and special education), using a two-phase approach (screening and diagnosis ascertainment by a neurologist). Tics with/without impairment criterion were diagnosed according to Diagnostic and Statistical Manual of Mental Disorders criteria. In mainstream schools, tics were observed in 125/741 students (16.86%; 95% confidence interval, 14.10-19.63), and were more frequent in boys (87/448, 19.42%; 95% confidence interval, 15.64-23.19) compared with girls (38/293, 12.96%; 95% confidence interval, 8.95-16.98; P = 0.03). In special education centers, tics disorders were observed in 11/54 of children (20.37%; 95% confidence interval, 8.70-32.03). Overall, tics with impairment criteria were less frequent than tics without impairment criteria (4.65% vs 11.85%, P < 0.0001). The most frequent diagnoses involved chronic motor tics (6.07%) and Tourette syndrome (5.26%). Tic disorders are common in childhood, and the use or nonuse of impairment criteria exerts a significant impact on tic prevalence estimates.
PB Elsevier
SN 0887-8994
YR 2011
FD 2011-08
LK http://hdl.handle.net/10259/8218
UL http://hdl.handle.net/10259/8218
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 08-may-2024