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🩺 Logistic Organ Dysfunction Score (LODS)

UseWhen to use: severity / organ-dysfunction description on ICU day 1.

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StrataHigher LODS marks greater dysfunction burden and modeled mortality risk.

LimitsWhen not to use: interchanging with SOFA cut-offs. · Pitfall: missing values should score as normal per original rules. · Not a stand-alone triage rule.

SourceLe Gall LODS (JAMA 1996) logistic organ dysfunction system

Runs locally in your browser (no PHI uploaded). For licensed clinicians — not a substitute for clinical judgement.
Stored on this device for revisit reminders

This-shift next steps

After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.

Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.

Methodology · worked example, guidelines & full notes
Clinical takeaway

Max 22.

When to use

When to use: severity / organ-dysfunction description on ICU day 1.

How it works

Sum of 6 system points (max 22); p = 1/(1+exp(−(−3.4043+0.4173×LODS))).

Key points

  • Max 22.
  • Day-1 physiology.
  • Next: SOFA / cause.

References

  • Le Gall LODS (JAMA 1996) logistic organ dysfunction system

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

Neurologic (GCS) points1 — GCS 9–13
Cardiovascular points (max of HR/SBP bands)1 — mild HR/SBP derangement
Renal points (max of urea/Cr/UO)1 — mild
Pulmonary points (vent/CPAP PaO₂/FiO₂)1 — vent/CPAP & P/F ≥150
Hematologic points (WBC/platelets)1 — mild WBC/Plt derangement
Hepatic points (bilirubin/PT)0 — bili <2 mg/dL & PT ≤+3 s

→LODS5/22

  • Est. mortality：21.1%
  • Logit：-1.318
  • Cue：Intermediate LODS burden
Neurologic (GCS) points0 — GCS 14–15
Cardiovascular points (max of HR/SBP bands)0 — HR 30–139 & SBP 90–239
Renal points (max of urea/Cr/UO)0 — within normal bands
Pulmonary points (vent/CPAP PaO₂/FiO₂)0 — no vent/CPAP day 1
Hematologic points (WBC/platelets)0 — WBC 2.5–49.9 & Plt ≥50
Hepatic points (bilirubin/PT)0 — bili <2 mg/dL & PT ≤+3 s

→LODS0/22

  • Est. mortality：3.2%
  • Logit：-3.404
  • Cue：Lower LODS burden (first-day teaching model)
Verification & sources · governance
FAQ

Frequently asked questions

Does Logistic Organ Dysfunction Score (LODS) upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is Logistic Organ Dysfunction Score (LODS) calculated in practice? Can you show a worked example?
Inputs: Neurologic (GCS) points 1 — GCS 9–13, Cardiovascular points (max of HR/SBP bands) 1 — mild HR/SBP derangement, Renal points (max of urea/Cr/UO) 1 — mild, Pulmonary points (vent/CPAP PaO₂/FiO₂) 1 — vent/CPAP & P/F ≥150, Hematologic points (WBC/platelets) 1 — mild WBC/Plt derangement, Hepatic points (bilirubin/PT) 0 — bili <2 mg/dL & PT ≤+3 s → Result: LODS 5 /22（Est. mortality: 21.1%, Logit: -1.318, Cue: Intermediate LODS burden） Inputs: Neurologic (GCS) points 0 — GCS 14–15, Cardiovascular points (max of HR/SBP bands) 0 — HR 30–139 & SBP 90–239, Renal points (max of urea/Cr/UO) 0 — within normal bands, Pulmonary points (vent/CPAP PaO₂/FiO₂) 0 — no vent/CPAP day 1, Hematologic points (WBC/platelets) 0 — WBC 2.5–49.9 & Plt ≥50, Hepatic points (bilirubin/PT) 0 — bili <2 mg/dL & PT ≤+3 s → Result: LODS 0 /22（Est. mortality: 3.2%, Logit: -3.404, Cue: Lower LODS burden (first-day teaching model)）
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