Effect of Web-Based Versus Paper-Based Questionnaires and Follow-Up Strategies on Participation Rates of Dutch Childhood Cancer Survivors: A Randomized Controlled Trial

Ellen Kilsdonk   ¹ , MSc ;   Eline van Dulmen-den Broeder   ² , PhD ;   Helena J van der Pal   ³ , MD,PhD ;   Nynke Hollema   ⁴ , MSc ;   Leontien C Kremer   ⁵ , MD,PhD ;   Marry M van den Heuvel-Eibrink   ⁶ , MD,PhD ;   Flora E van Leeuwen   ⁷ , PhD ;   Monique W Jaspers   ^{1 *} , PhD ;   Marleen H van den Berg   ^{2 *} , PhD

¹ Centre for Human Factors Engineering of interactive Health Information Technology (HIT-lab), Department of Medical Informatics, Academic Medical Center, Amsterdam, The Netherlands

² Department of Pediatrics, Division of Oncology-Hematology, VU University Medical Center, Amsterdam, The Netherlands

³ Late Effects Outpatient Clinic for Adult Survivors of Childhood Cancer, Department of Medical Oncology, Academic Medical Center, Amsterdam, The Netherlands

⁴ Dutch Childhood Oncology Group – Late Effects Registry, The Hague, The Netherlands

⁵ Department of Pediatric Oncology, Emma Children’s Hospital/Academic Medical Center, Amsterdam, The Netherlands

⁶ Department of Pediatric Oncology/Hematology, Sophia Children’s Hospital/Erasmus Medical Center, Rotterdam, The Netherlands

⁷ Department of Epidemiology, Netherlands Cancer Institute, Amsterdam, The Netherlands

*these authors contributed equally