Determinants of (sustained) overweight and complaints in children and adolescents in primary care: The DOERAK cohort study design

Winifred D. Paulis*, Marienke Van Middelkoop, Herman Bueving, Pim A.J. Luijsterburg, Johannes C. Van Der Wouden, Bart W. Koes

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)


Background: Almost half of the adult Dutch population is currently overweight and the prevalence of overweight children is rising at alarming rates as well. Obese children consult their general practitioner (GP) more often than normal weight children. The Dutch government has assigned a key role to the GP in the prevention of overweight. The DOERAK cohort study aims to clarify differences between overweight and non-overweight children that consult the GP; are there differences in number of consultations and type and course of complaints? Is overweight associated with lower quality of life or might this be influenced by the type of complaint? What is the activity level of overweight children compared to non-overweight children? And is (sustained) overweight of children associated with parameters related to the energy balance equation? Methods/Design: A total of 2000 overweight (n = 500) and non-overweight children (n = 1500) aged 2 to 18 years who consult their GP, for any type of complaint in the South-West of the Netherlands are included. At baseline, height, weight and waist circumference are measured during consultation. The number of GP consultations over the last twelve months and accompanying diagnoses are acquired from the medical file. Complaints, quality of life and parameters related to the energy balance equation are assessed with an online questionnaire children or parents fill out at home. Additionally, children or parents keep a physical activity diary during the baseline week, which is validated in a subsample (n = 100) with an activity monitor. Parents fill out a questionnaire about demographics, their own activity behaviour and perceptions on dietary habits and activity behaviour, health and weight status of their child. The physical and lifestyle behaviour questions are repeated at 6, 12 and 24 months follow-up. The present study is a prospective observational cohort in a primary care setting. Discussion: The DOERAK cohort study is the first prospective study that investigates a large cohort of overweight and non-overweight children in primary care. The total study population is expected to be recruited by 2013, results will be available in 2015.

Original languageEnglish
Article number70
JournalBMC Family Practice
Publication statusPublished - 2012

Bibliographical note

Funding Information:
The authors would like to thank Frits Bareman, Hans Faddegon and Monique Beekman-Evers for their contributions to the design of the cohort. Furthermore they are thankful to the following GP trainees for inviting children to participate: Iryna Agapova, Casper Blommerde, Renée Kok, Marieke van Leeuwen, Marloes Mentink, Bunyamin Meral, Lambert Moens, Kevin de Smet, Rosalinda van Valburg, Arjen van der Wal, Michiel Bos, Jantien Bruijnzeel, Darren Cornish, Suzanne Crop e/v Huyben, Joanique Jongsma, Feike Kalsbeek, Mia Kokenberg E.V. Theunissen, Sandra Kremer Hovinga, Joyce Nouwens, Cedric Rietmeijer, Arjan Roest, Katrien Sevens, Marjolein Willemsen-Van der Ent and Esther Zuidema. The study was fully funded by the department of general practice of the Erasmus University Medical Center, Erasmus MC.


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