Pediatric Crohn's Disease Activity Index (PCDAI)Loading...Abdominal painNone0Mild: does not interfere w/ activities+5Moderate/severe: affects activities, nocturnal+10Stools per day0-1 liquid stools, no blood02-5 liquid or ≤ 2 semi-formed w/ small blood+5≥ 6 liquid, gross blood, or nocturnal diarrhea+10General well-beingWell (no limitation of activities)0Below par (occasional difficulty in maintaining age-appropriate activities)+5Very poor (frequent limitation of activity)+10Weight (based on previous measurement)Weight gain, voluntarily stable or voluntary loss0Weight involuntarily stable or lost+5Weight loss ≥ 10%+10Height at diagnosis/follow-up< 1 channel decrease (or height velocity ≥ -1SD)0Channel decrease ≥ 1 and < 2 (or height < -1SD and > -2SD)+5≥ 2 channel decrease (or height velocity ≤ -2SD)+10AbdomenNo tenderness, no mass0Tenderness, or mass w/o tenderness+5Tenderness, involuntary guarding or definite mass+10Peri-rectal diseaseNone or asymptomatic tags01-2 indolent fistulae, scant drainage and no tenderness+5Active fistula, drainage, tenderness or abscess+10Extra-intestinal manifestationsNone01+5≥ 2+10Hematocrit %, age, sex> 33, < 10 yo, M or F0≥ 34, 11-19 yo, F0≥ 35, 11-14 yo, M0≥ 37, 15-19 yo, M028-32, < 10 yo, M or F+2.529-33, 11-19 yo, F+2.530-34, 11-14 yo, M+2.532-36, 15-19 yo, M+2.5< 28, < 10 yo, M or F+5< 29, 11-19 yo, F+5< 30, 11-14 yo, M+5< 32, 15-19 yo, M+5Albumin, g/dL (g/L)≥ 3.5 (35)03.1-3.4 (31-34)+5≤ 3.0 (30)+10