Els van de Vijver

96 REFERENCES: 1. Rosen MJ, Dhawan A, Saeed SA. Inflammatory Bowel Disease in Children and Adolescents. JAMA Pediatr 2015; 169(11): 1053-1060 [PMID: 26414706 DOI: 10.1001/jamapediatrics.2015.1982] 2. Ghione S, Sarter H, Fumery M, Armengol-Debeir L, Savoye G, Ley D, Spyckerelle C, Pariente B, Peyrin-Biroulet L, Turck D, Gower-Rousseau C. Dramatic Increase in Incidence of Ulcerative Colitis and Crohn's Disease (1988-2011): A Population-Based Study of French Adolescents. Am J Gastroenterol 2018; 113(2): 265-272 [PMID: 28809388 DOI: 10.1038/ajg.2017.228] 3. van Langenberg DR, Gibson PR. Systematic review: fatigue in inflammatory bowel disease. Aliment Pharmacol Ther 2010; 32(2): 131-143 [PMID: 20456309 DOI: 10.1111/j.1365-2036.2010.04347.x] 4. Crichton A, Knight S, Oakley E, Babl FE, Anderson V. Fatigue in child chronic health conditions: a systematic review of assessment instruments. Pediatrics 2015; 135(4): e1015-1031 [PMID: 25802352 DOI: 10.1542/peds.2014-2440] 5. Farrell D, McCarthy G, Savage E. Self-reported Symptom Burden in Individuals with Inflammatory Bowel Disease. J Crohns Colitis 2016; 10(3): 315-322 [PMID: 26598526 DOI: 10.1093/ecco-jcc/jjv218] 6. Marcus SB, Strople JA, Neighbors K, Weissberg-Benchell J, Nelson SP, Limbers C, Varni JW, Alonso EM. Fatigue and health-related quality of life in pediatric inflammatory bowel disease. Clin Gastroenterol Hepatol 2009; 7(5): 554-561 [PMID: 19418604] 7. Rogler D, Fournier N, Pittet V, Buhr P, Heyland K, Friedt M, Koller R, Rueger V, Herzog D, Nydegger A, Schappi M, Schibli S, Spalinger J, Rogler G, Braegger CP. Coping is excellent in Swiss Children with inflammatory bowel disease: Results from the Swiss IBD cohort study. J Crohns Colitis 2014; 8(5): 409-420 [PMID: 24230970 DOI: 10.1016/j.crohns.2013.10.004] 8. Werkstetter KJ, Ullrich J, Schatz SB, Prell C, Koletzko B, Koletzko S. Lean body mass, physical activity and quality of life in paediatric patients with inflammatory bowel disease and in healthy controls. J Crohns Colitis 2012; 6(6): 665-673 [PMID: 22398103 DOI: 10.1016/j.crohns.2011.11.017] 9. Aadland E, Andersen LB, Skrede T, Ekelund U, Anderssen SA, Resaland GK. Reproducibility of objectively measured physical activity and sedentary time over two seasons in children; Comparing a day-by-day and a week-by-week approach. PLoS One 2017; 12(12): e0189304 [PMID: 29216318 DOI: 10.1371/journal.pone.0189304] 10. Alhassan S, Lyden K, Howe C, Kozey Keadle S, Nwaokelemeh O, Freedson PS. Accuracy of accelerometer regression models in predicting energy expenditure and METs in children and youth. Pediatr Exerc Sci 2012; 24(4): 519-536 [PMID: 23196761 ] 11. Varni JW, Burwinkle TM, Szer IS. The PedsQL Multidimensional Fatigue Scale in pediatric rheumatology: reliability and validity. J Rheumatol 2004; 31(12): 2494-2500 [PMID: 15570657] 12. Loonen HJ, Grootenhuis MA, Last BF, de Haan RJ, Bouquet J, Derkx BH. Measuring quality of life in children with inflammatory bowel disease: the impact-II (NL). Qual Life Res 2002; 11(1): 47-56 [PMID: 12003055] 13. Nicholas DB, Otley A, Smith C, Avolio J, Munk M, Griffiths AM. Challenges and strategies of children and adolescents with inflammatory bowel disease: a qualitative examination. Health Qual Life Outcomes 2007; 5: 28 [PMID: 17531097 DOI: 10.1186/1477-7525-5-28] Chapter 5 96