Table 1.

The weighted Paediatric Crohn's Disease Activity Index¹⁶

			Score
History (recall, 1 week)
Abdominal pain
0=none	10=mild: brief, does not interfere with activities	20=moderate/severe: daily, longer lasting, affects activities, nocturnal	______
Patient functioning, general well-being
0=no limitation of activities, well	10=occasional difficulty in maintaining age appropriate activities, below par	20=frequent limitation of activity, very poor	______
Stools (per day)
0=0–1 liquid stools, no blood	7.5=up to 2 semiformed with small blood, or 2–5 liquid	15=gross bleeding, or ≥6 liquid or nocturnal diarrhoea	______
Laboratory
Erythrocyte sedimentation rate
0≤20 mm/h	7.5=20–50 mm/h	15≥50 mm/h	______
Albumin
0≥3.5 g/dL	10=3.1–3.4 g/dL	20≤3.0 g/dL	______
Examination
Weight
0=weight gain or voluntary weight stable/loss	5=involuntary weight stable, weight loss 1%–9%	10=weight loss ≥10%	______
Perianal disease
0=none, asymptomatic tags	7.5=1–2 indolent fistula, scant drainage, no tenderness	15=active fistula, drainage, tenderness or abscess	______
Extraintestinal manifestations
fever ≥38.5°C for 3 days over last week, definite arthritis, uveitis, erythema nodosum and pyoderma gangrenosum
0=none		10=one or more	______
Total score (0–125)

Remission <12.5; mild 12.5–40; moderate 40–57.5; severe disease activity >57.5.