Lichtiger Index (Ulcerative Colitis Activity)
Lichtiger Index (Modified Truelove-Witts Severity Index, Lichtiger 1994) for ulcerative colitis activity.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Daily stools
- 2
- Nocturnal diarrhea
- 1
- Visible blood in stool
- 2
- Fecal incontinence
- 0
- Abdominal pain
- 2
- General wellbeing
- 3
- Abdominal tenderness
- 1
- Need for antidiarrheal drugs
- 1
Result: Lichtiger 12 of 21 — active (>= 10).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Activity
- advisory cutoffs from later trials (not the 1994 paper): < 10 = clinical response, >= 10 = active disease, <= 3 = remission.
What you enter
- Daily stools: 0 (0-2), 1 (3-4), 2 (5-6), 3 (7-9), 4 (>=10)
- Nocturnal diarrhea: 0 no, 1 yes
- Visible blood in stool: 0 none, 1 <50%, 2 >=50%, 3 100%
- Fecal incontinence: 0 no, 1 yes
- Abdominal pain: 0 none, 1 mild, 2 moderate, 3 severe
- General wellbeing: 0 perfect to 5 terrible
- Abdominal tenderness: 0 none, 1 mild/localized, 2 mild-moderate/diffuse, 3 severe/rebound
- Need for antidiarrheal drugs: 0 no, 1 yes
How this is calculated
- Items
- eight items summed 0-21: daily stools (0-4), nocturnal diarrhea (0-1), blood (0-3), incontinence (0-1), pain (0-3), wellbeing (0-5), tenderness (0-3), antidiarrheal use (0-1).
Lichtiger S, Present DH, Kornbluth A, et al. Cyclosporine in severe ulcerative colitis refractory to steroid therapy. N Engl J Med. 1994;330(26):1841-1845. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.