Prevalence of nail biting and its chronological relationship with tics in child and adolescent outpatients with Tourette syndrome: a single-centre, retrospective observational study.
BMJ Open
; 12(9): e063874, 2022 09 15.
Article
em En
| MEDLINE
| ID: mdl-36109039
ABSTRACT
OBJECTIVE:
To evaluate the prevalence of nail biting in child and adolescent outpatients at a single institution and the chronological relationship between nail biting and tics in patients with Tourette syndrome (TS) with or without attention-deficit hyperactivity disorder (ADHD).DESIGN:
Retrospective observational study.SETTING:
Teaching hospital in Taiwan.PARTICIPANTS:
All participants were aged 4-18 years, including 535 patients with TS, 230 patients with provisional tic disorder and 1460 patients without neurological or psychiatric disorders (controls). OUTCOMEMEASURES:
Presence of nail biting, starting age for nail biting and starting age for motor and/or vocal tics.RESULTS:
Nail biting was more commonly observed in patients with TS (56.6%) than in patients with provisional tic disorder (27.4%) or controls (15.0%), regardless of sex (all p<0.020). Nail biting was also more common in patients with TS with ADHD than in those without (75.0% vs 47.6%; p<0.001), but the starting age was significantly later in those with concomitant ADHD than without (5.3 vs 3.8 years; p<0.001). In patients with TS, the onset of nail biting occurred earlier than that of tics, regardless of ADHD status.CONCLUSION:
Nail biting was more prevalent and occurred earlier than tics in patients with TS, regardless of ADHD status, in the study population.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Transtornos de Tique
/
Síndrome de Tourette
/
Tiques
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article