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The FTF (Five to Fifteen): the development of a parent questionnaire for the assessment of ADHD and comorbid conditions


This paper describes the development of a new parent questionnaire (“Five to Fifteen”, or the FTF) for elicitation of symptoms and problems typical of ADHD and its comorbidities. The FTF comprises 181 statements related to behavioural or developmental problems that can be endorsed as either “does not apply” (0), applies sometimes or to some extent” (1), “definitely applies” (2), plus a number of open-ended questions including some about the child’s strengths. The items are arranged into eight different domains (memory, learning, language, executive functions, motor skills, perception, social skills, and emotional/behavioural problems), most of which can be subdivided into subdomains. For each domain, a mean score ranging from 0–2 can be calculated. A representative sample (n=1350) of the total population of 6–15-year-old children was targeted. Parents of 63% of these completed a questionnaire and returned it to the researchers. Boys showed significantly more problems than did girls across domains and age. Younger children had more problems than pre-adolescents and adolescents (except in the domains of social skills and emotional/behavioural problems). Executive dysfunction was common, and 5.3% of all children in the population had clear problems suggesting a diagnosis of ADHD according to parent report. The paper provides means, medians, and 90th and 95th centiles for individual items as well as for the eight domains. The Discussion centres on whether or not the FTF can (or should) be used in school-aged children for the identification of children at risk for ADHD or other early childhood onset neuropsychiatric disorder.

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  1. Achenbach T (1991) Manual for the Childs behavior Checklist/4–18 and 1991 profile.University of Vermont Department of Psychiatry, Burlington, VT

  2. Airaksinen E, Bille B, Carlström G, Diderichsen J, Ehlers S, Gillberg C, Gillberg I, Gunnarsson S, Hellgren L, Herrgård E, Hundevadt L, Jansen J, Kadesjö B, Korkman M, Lie H, Lindahl E, Lundberg A, Michelsson K, Nettelbladt U, Nordin V, Ramberg C, Rasmussen P, Ruud E, Strand G, Trillingsgaard A, Westerberg B (1991) Barn och ungdomar med DAMP/MBD (Children and adolescents with DAMP/MBD). Läkartidningen 88:714

    Google Scholar 

  3. Angold A, Costello J, Erkanli A (1999) Comorbidity. J Child Psychol Psychiatry 40:57–87

    Article  CAS  PubMed  Google Scholar 

  4. Barkley R (1997) Age dependent decline in ADHD: True recovery or statistical illusion? The ADHD Report 5:1–5

    Google Scholar 

  5. Barkley R (1998) Attention Deficit Hyperactivity Disorder. A Handbook for Diagnosis and Treatment. Guilford Press, New York

  6. Baron-Cohen S, Allen J, Gillberg C (1992) Can autism be detected at 18 months? The needle, the haystack, and the CHAT. Br J Psychiatry 161:839–843

    CAS  PubMed  Google Scholar 

  7. Biederman J, Faraone S, Mick E, Williamson S, Wilens TE, Spencer T, Weber W, Jetton J,Kraus I, Pert J, Zallen B (1999) Clinical correlates of ADHD in females: Findings from a large group of girls ascertained from pediatric and psychiatric referral sources. J Am Acad Child Adolesc Psychiatry 38:966–975

    Article  CAS  PubMed  Google Scholar 

  8. Biederman J, Newcorn J, Sprich S (1991) Comorbidity of attention deficit hyperactivity disorder with conduct, depressive, anxiety and other disorder. Am J Psychiatry 145:564–577

    Google Scholar 

  9. Buitelaar J (2002) Epidemiological aspects: what have we learned over the last decade? In: Sandberg S (ed) Hyperactivity and attention disorders of childhood. Cambridge University Press, Cambridge, pp 30–63

  10. Conners CK (1997) Conners’ Rating Scales-Revised. Technical Manual. Multi-Health Systems, New York

  11. Ehlers S, Gillberg C (1993) The epidemiology of Asperger syndrome. A total population study. J Child Psychol Psychiatry 34:858–868

    Google Scholar 

  12. Ehlers S, Gillberg C, Wing L (1999) A screening questionnaire for Asperger syndrome and other high-functioning autism spectrum disorders in school age children. J Autism Devel Disord 29:129–141

    Article  CAS  Google Scholar 

  13. Gillberg C (1999) Nordisk enighet om DAMP/ADHD. Läkartidningen 99:3330–3331

    Google Scholar 

  14. Gillberg C (1983) Perceptual, motor and attentional deficits in Swedish primary school children: some child psychiatric aspects. J Child Psychol Psychiatry 34:1327–1350

    Google Scholar 

  15. Goodman R (2001) Psychometric properties of the strengths and difficulties questionnaire. J Am Acad Child Adolesc Psychiatry 40:1337–1345

    Article  CAS  PubMed  Google Scholar 

  16. Goodman R, Ford T, Simmons H, Gatward R, Meltzer H (2000) Using the Strengths and Difficulties Questionnaire (SDQ) to screen for child psychiatric disorders in a community sample. Br J Psychiatry 177:534–539

    Article  CAS  PubMed  Google Scholar 

  17. Kadesjö B, Gillberg C (2001) The comorbidity of ADHD in the general population of Swedish school-age children. J Child Psychol Psychiatry 42:487–492

    Article  PubMed  Google Scholar 

  18. Kelvin R,Goodyer I, Teasdale J, Brechin D (1999) Latent negative self-schema and high emotionality in well adolescents at risk for psychopathology. J Child Psychol Psychiatry 40:959–968

    Article  CAS  PubMed  Google Scholar 

  19. Korkman M, Jaakkola M, Ahlroth A, Pesonen A-E, Turunen M-M (2004) Screening of developmental disorders in five-year-olds using the FTF (Five to Fifteen) questionnaire. A validation study. Eur Child Adolesc Psychiatry (Suppl 3)13:III/31–III/38

    Google Scholar 

  20. Rutter M (1967) A children’s behaviour questionnaire for completion by teachers: Preliminary findings. J Child Psychol Psychiatry 8:1–11

    CAS  PubMed  Google Scholar 

  21. Sandberg S (2002) Psychosocial contributions. In: Sandberg S (ed) Hyperactivity and attention disorders of childhood. Cambridge University Press, Cambridge, pp 367–416

  22. Socialstyrelsen (Swedish Bureau of Health and Welfare) (2002) ADHD hos barn och vuxna. (ADHD in Children and Adults) In Swedish. Socialstyrelsen, Stockholm

  23. Spencer T, Biederman J, Wilens T (1999) Attention-deficit/hyperactivity disorder and comorbidity. Pediatric Clinics of North America 46:915–927

    CAS  PubMed  Google Scholar 

  24. Trillingsgaard A, Damm D, Sommer S, Jepsen JR, Østergaard O, Frydenberg M, Thomsen P-H (2004) Developmental profiles on basis of the FTF (Five to Fifteen) parent questionnaire. Clinical validity and utility of the FTF in a child psychiatric sample. Eur Child Adolesc Psychiatry (Suppl 3)13:III/39–III/49

    Google Scholar 

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Kadesjö, B., Janols, LO., Korkman, M. et al. The FTF (Five to Fifteen): the development of a parent questionnaire for the assessment of ADHD and comorbid conditions. European Child & Adolescent Psychiatry 13 (Suppl 3), iii3–iii13 (2004).

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Key words

  • FTF
  • ADHD
  • questionnaire
  • comorbidity
  • rating scale
  • childhood
  • adolescence