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Table 3 Results of the strengths and difficulties questionnaire (n = 48) and frequency of abnormalities in relation to healthy controls

From: Propionic acidemia: clinical course and outcome in 55 pediatric and adolescent patients

SDQ subscale % of abnormal findings in study cohort of PA patients % of abnormal findings in healthy controls Frequency of abnormal findings in PA patients in relation to healthy controls
Emotional symptoms 25 9 2.8
Conduct problems 20 15 1.3
Hyperactivity/inattention 11 8 1.4
Peer relationship problems 41 12 3.4
Total difficulties score (generated from subscale 1–4) 28 7 4.0
  (in addition borderline abnormalities in 20%)   
Prosocial behaviour 34 3.6 9.4
Impact on child’s life 29