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Attention‐deficit/hyperactivity disorder increased the risk of injury: a population‐based follow‐up study
Author(s) -
Kang JiunnHorng,
Lin HerngChing,
Chung ShiuDong
Publication year - 2013
Publication title -
acta paediatrica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 115
eISSN - 1651-2227
pISSN - 0803-5253
DOI - 10.1111/apa.12213
Subject(s) - medicine , hazard ratio , attention deficit hyperactivity disorder , cohort , proportional hazards model , incidence (geometry) , cohort study , population , pediatrics , poison control , confidence interval , psychiatry , emergency medicine , environmental health , physics , optics
Aim To explore the frequency and risk for injury among children with A ttention‐deficit/hyperactivity D isorder ( ADHD ) in Taiwan through a population‐based study. Methods A total of 3616 subjects aged between four and twelve years diagnosed with ADHD were selected along with a comparison cohort comprising 18 080 subjects. Each subject was individually traced for a three‐year period from their index date to identify those subjects who subsequently received a diagnosis of injury. We used stratified Cox proportional hazards regressions to examine the three‐year injury‐free survival rates between the two cohorts. Results Of the subjects, the incidence rate of injury during the three‐year follow‐up period was 7.97 (95% CI = 7.45–8.51) and 5.36 (95% CI = 5.17–5.56) for the study and comparison cohort, respectively. After adjusting for geographic region, the hazard ratio ( HR ) of injury for subjects with ADHD was 1.64 (95% CI = 1.50–1.79) that of comparison subjects. In addition, we found children with ADHD aged between four and 6 years to demonstrate a greater HR (1.98, 95% CI = 1.72–2.28) than those aged between seven and twelve (HR = 1.46, 95% CI = 1.31–1.63). Conclusions Children with ADHD appear to be at a higher risk for injury than children that are not diagnosed with ADHD .