RT info:eu-repo/semantics/article T1 The Association of Poor Academic Performance with Tic Disorders: A Longitudinal, Mainstream School-Based Population Study A1 Cubo Delgado, Esther A1 González Deza, Cristina A1 Ausín Villaverde, Vanesa A1 Delgado Benito, Vanesa A1 Sáez Velasco, Sara A1 Calvo Simal, Sara A1 García Soto, Xose Ramón A1 Cordero Guevara, José A1 Kompoliti, Katie A1 Louis, Elan D. A1 Fuente Anuncibay, Raquel de la K1 Tics K1 Tourette syndrome K1 Learning disability K1 Attention deficit disorder K1 Movement disorders K1 Education K1 Chronic tic disorder K1 Prevalence K1 Incidence K1 Sistema nervioso-Enfermedades K1 Nervous system-Diseases K1 Educación K1 Education AB Background: Little is known about the academic performance of students with tic disorders (TD). Our aim was to investigate the association of TD and poor academic performance over time. Methods: Longitudinal, observational study of mainstream schoolchildren comparing grade retention (GR) and learning disorders (LD) in students with vs. without TD between 2010 and 2014. Students with vs. without TD based on DSM-IV-TR criteria, or with vs. without GR and LD were compared in terms of comorbidities, school, and environmental characteristics. The association of TD with GR was analyzed using hazard ratios (HRs) with 95% CIs, and with LD using logistic regression analysis [Odds ratio (OR)]. Results: Two hundred fifty-eight students were included (mean age 14.0 ± 1.71 years, 143 [55.4%] males). The incident rate for TD and GR was 2.6 and 3.3 per 100 persons-year, respectively. LD found in 21 (9.9%) students was associated with TD (OR 11.62, 95% CI 2.21-60.90, p = 0.004), and attention deficit hyperactivity disorder (ADHD; OR 6.63, 95% CI 1.55-28.37, p = 0.01). Low psychological support (HRs 12.79, 95% CI 3.39-48.17) and low sport participation (HRs 6.41, 95% CI 1.54-26.78) were risk factors for GR. Conclusions: TD was associated with academic difficulties, namely, LD in conjunction with ADHD but not GR. The diagnosis of TD and comorbidities, and the initiation of proper treatment could have a favorable impact on school performance, and consequently on social development. PB Karger Publishers SN 0251-5350 YR 2017 FD 2017-08 LK http://hdl.handle.net/10259/8251 UL http://hdl.handle.net/10259/8251 LA eng NO Junta de Castilla y Leon, SOC/BU01/13. DS Repositorio Institucional de la Universidad de Burgos RD 08-may-2024