OASIS (Oxford Acute Severity of Illness Score)
OASIS (Oxford Acute Severity of Illness Score) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
Open the OASIS (Oxford Acute Severity of Illness Score) → Runs in your browser. No signup, no tracking.
What this is
OASIS (Oxford Acute Severity of Illness Score) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. OASIS (Oxford Acute Severity of Illness Score) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Johnson AEW, Kramer AA, Clifford GD. A new severity of illness scale using a subset of Acute Physiology and Chronic Health Evaluation data elements shows comparable predictive accuracy. Crit Care Med. 2013;41(7):1711-1718. Read the source ↗
Worked example: OASIS 51 — predicted in-hospital mortality 58.1%.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.