Is eczema a risk factor of attention-deficit/hyperactivity disorder? – A cohort study utilizing secondary data from routine care
J Schmitt · DMW - Deutsche Medizinische Wochenschrift · 2012 · Heft 09
Bibliografische Angaben
Zusammenfassung
Aims: Four epidemiological studies from Germany suggested an association of eczema and attention-deficit/hyperactivity disorder (ADHD). The temporal relationship between eczema and physician-diagnosed ADHD is unclear. Hypothesis: Childhood eczema is related to the development of incident ADHD. Methods: We conducted a cohort study utilizing secondary data from routine medical care of 348,461 children and adolescents (mean age 8.4 years, 49 percent females) insured with AOK PLUS, a large health insurance from Germany. Primary exposure was physician-diagnosed atopic eczema (ICD–10 code L20) in 2005 and/or 2006. Sec…