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This version was machine-translated from German and has not been medically reviewed. The authoritative version is the German version.

PCDAI – Pediatric Crohn's Disease Activity Index

Eleven items from history, examination and laboratory (0–100 points) with the cutoffs according to Turner 2010

Abdominal pain (last week)
Stools per day
General condition
Weight (compared with measurement 4–6 months ago)
Linear growth
Abdomen
Perianal findings
Extraintestinal manifestations (fever ≥ 38.5 °C on 3 days of the past week, arthritis, uveitis, erythema nodosum, pyoderma gangrenosum)
Hematocrit (%)
ESR (mm/h)
Albumin (g/dl)

Calculation aid for healthcare professionals: the calculator reproduces what the sources cited assign to the inputs. Clinical assessment and every treatment decision remain with the treating physician. Inputs and results are not stored.

Frequently asked questions

PCDAI – Pediatric Crohn's Disease Activity Index: What does this calculator compute?

Pediatric Crohn's Disease Activity Index (Hyams 1991): abdominal pain, stools, general well-being, weight, linear growth, abdomen, perianal findings, extraintestinal manifestations, hematocrit, ESR and albumin; sum 0–100 with remission < 10, mild 10–27.5, moderate 30–37.5 and severe ≥ 40 (Turner 2010).

PCDAI – Pediatric Crohn's Disease Activity Index: Which sources is this calculator based on?

Hyams JS, Ferry GD, Mandel FS, et al.: Development and validation of a pediatric Crohn's disease activity index (JPGN 12:439–447) (1991); Turner D, Griffiths AM, Walters TD, et al.: Appraisal of the pediatric Crohn's disease activity index on four prospectively collected datasets: recommended cutoff values and clinimetric properties (Am J Gastroenterol 105:2085–2092) (2010); Shaare Zedek Medical Center, Jerusalem: wPCDAI Calculator – Shaare Zedek Medical Center (Pediatric Gastroenterology, Turner et al.) (2024); Turner D, Griffiths AM, Walters TD, et al.: Mathematical weighting of the pediatric Crohn's disease activity index (PCDAI) and comparison with its other short versions (Inflamm Bowel Dis 18:55–62) (2012)