About Sigma
Better surgical care starts with better data.
Sigma helps health systems collect, monitor and compare surgical indicators across member institutions, regions and countries — turning fragmented records into a clear, shared picture of surgical access and quality.
Our mission
Five billion people lack access to safe, affordable surgical care when needed. Measuring the gap is the first step to closing it. Sigma gives ministries of health, regional bodies and facilities a single place to capture the globally recognised surgical indicators and act on what the numbers reveal.
Registered users can enroll facilities, submit indicator data, and view aggregated summaries for surgical volume, perioperative mortality, workforce density, access to timely surgery, and financial risk protection.
Standardised
Built around the internationally recognised core surgical indicators.
Multi-level
Aggregate from facility to administrative unit, region and country.
Secure
Role-based access keeps clinical and operational data protected.
Actionable
Benchmark performance and track progress over time.
Part of a member institution?
Log in to begin recording your facility's data, or request access to join the network.