The Copenhagen County child cohort: Design of a longitudinal study of child mental health

Abstract

Background: Epidemiological studies of psychopathology in the first years of life are few, and the association between mental health problems in infancy and psychiatric disturbances later in life has not been systematically investigated. The aim of the present project was to study mental health problems and possibilities of intervention from infancy and onward. Methods: The basic study population consists of a birth cohort of 6,090 children born in the year 2000 in the County of Copenhagen, the Copenhagen County Child Cohort, CCCC 2000. At stage one CCCC 2000 was established on data from the Civil Registration System, Danish national registers, and standardized, longitudinal data from the first year of living obtained by public health nurses. At stage two a subsample was assessed at 1½ years of age concerning child psychiatric illness and associated factors in a case-control study nested in the cohort, including a random sample. Participation rate at stage one was 92%. Perspectives: Ongoing studies of CCCC 2000 include studies of failure to thrive, register studies, and studies of the predictive validity of public health screening. A follow-up study concerning the prevalence of psychopathology at age 5 is planned. Summary: The Copenhagen County Child Cohort CCCC 2000 is a longitudinal study of mental health from infancy investigating psychopathology in early childhood. Results from this study will add to the knowledge of risk factors and course of mental health problems in childhood and contribute to the validation of the mental health screening made by public health nurses.

Keywords

Birth cohort longitudinal public health nurse infant mental health child psychiatry

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References

Zeanah CH , editor. Handbook of infant mental health. 2nd ed. New York: Guilford Press, 2000.

Zeanah CH , Boris NW , Scheeringa MS Psychopathology in infancy. J Child Psychol Psychiatr 1997;38:81—99.

Verhulst FC The epidemiology of child and adolescent psychopathology: strengths and limitations . In: Verhulst FC , Koot HM , editors. The epidemiology of child and adolescent psychopathology . Oxford: Oxford University Press , 1995.

Fombonne E. Case identification in epidemiological research. In: Rutter M , Hersov L , editors. Child and adolescent psychiatry. Oxford : Blackwell Science, 2002.

Del Carmen-Wiggins R. , Carter AS Assessment of infant atnd toddler mental health: Advances and challenges. J Am Acad Child Adolesc Psychiatry 2001;40:811—9.

Koot HM Longitudinal studies of general population and community samples. In: Verhulst FC , Koot HM , editors. The epidemiology of child and adolescent psychopathology . Oxford: Oxford University Press , 1995.

Rutter M. Isle of Wight revisited: Twenty-five years of child psychiatric epidemiology . J Am Acad Child Adolesc Psychiatry 1989 ;28:633—53.

Briggs-Gowan MJ , Carter AS , Skuban EM , McCue Horwitz S. Prevalence of social-emotional and behavioral problems in a community sample of 1- and 2- year old children. J Am Acad Child Adolesc Psychiatry 2001;407:811—9.

Silva PA

The Dunedin Multidisciplinary Health and Developmental Study: A fifteen-year longitudinal study. Perinatal Paediatr

Epidemiol 1990:476—507.

10.

Zetterstrøm R. Psychosocial influence on the physical and mental development of Swedish children. Eur Child Adolesc Psychiatry 1996;5(Suppl 1):67—72.

11.

Laucht M. , Esser G. , Schmidt MH developmental outcome of infants born with biological and psychosocial risks. J Child Psychol Psychiatr 1997;38:843—3.

12.

Vestergaard M. , Obel C. , Henriksen TB , Sørensen HT , Skajaa E. , stergaard J. Duration of breastfeeding and developmental milestones during the latter half of infancy . Acta Pediatr 1999;88:1327—32.

13.

Olsen J. , Melbye M. , Olsen SF , et al. The Danish National Birth Cohort: Its background, structure and aim. Scand J Public Health 2001;29:300—7.

14.

Golding J. , Pembrey M. , Jones R. , the ALSPAC Study Team. ALSPAC — The Avon Longitudinal Study of Parents and Children, I: Study methodology. Pediatric Perinatal Epidemiol 2001;15:74—87.

15.

Skovgaard AM , Houmann T. , Landorph SL , Christiansen E. Assessment and diagnostic classification of psychopathology in children 0—3 years of age in epidemiological research: An overview of the literature. Eur Child Adolesc Psychiatry 2004;13(6): 337—46.