Validation of a Revised Knowledge Assessment Tool for Children with Inflammatory Bowel Disease (IBD-KID2)

Inflamm Intest Dis. 2020 Jun;5(2):70-77. doi: 10.1159/000506200. Epub 2020 Feb 21.

Angharad Vernon-Roberts 1, Anthony Otley 2, Chris Frampton 3, Richard B Gearry 3, Andrew S Day 1


Author information

  • 1University of Otago (Christchurch), Department of Pediatrics, Christchurch, New Zealand.
  • 2Dalhousie University Department of Pediatrics, Halifax, Nova Scotia, Canada.
  • 3University of Otago (Christchurch), Department of Medicine, Christchurch, New Zealand.


Introduction: For children with inflammatory bowel disease (IBD), acquired knowledge of their condition and treatment is integral to their adherence and self-management. Assessing their knowledge is vital to identify deficits that may affect disease management. IBD-KID2 is a knowledge assessment tool written for children aged 8 years and over with IBD.

Objectives: In order to examine validity and reliability, a study was carried out using IBD-KID2 in a paediatric IBD population and a number of comparator groups with established levels of IBD knowledge.

Methods: IBD-KID2 was administered to 4 participant groups in Christchurch Hospital, New Zealand: children with IBD (n = 22), children without IBD (n = 20), medical staff (n = 15), and administration staff (n = 15). Between-group differences were tested using ANOVA and pairwise comparisons made with the IBD group. Repeat assessments by the IBD group determined test-retest reliability (n = 21).

Results: The mean age (range) of the paediatric groups were: IBD 13.3 years (8-18), without IBD 11.9 years (8-15). Group mean scores (SD) were: IBD 8.5 (±2.3), without IBD 3.7 (±2.2), medical staff 13.5 (±1.3), administration staff 6.3 (±2.5). Group means were all significantly different to the IBD group. Test-retest mean at baseline (8.4, CI ±2.4) and repeat (9.0, CI ±2.4) were not significant. Intraclass correlation coefficient was 0.82. Internal reliability was 0.85, and item-total statistics showed no improvement by specific item removal.

Conclusions: IBD-KID2 could distinguish between groups with different knowledge levels. Repeat assessment shows comparable scores on retest and good reproducibility. IBD-KID2 is a valid and reliable tool for use in the paediatric IBD population.

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