MuLBSTA Score (Viral Pneumonia Mortality)
MuLBSTA score — a 0-20 model for 90-day mortality in viral pneumonia, from Multilobular infiltrate (+5), Lymphocyte <= 0.8 x10^9/L (+4), Bacterial coinfection (+4), Smoking (former +2 / current +3), Hypertension (+2), and Age >= 60 (+2).
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Multilobular infiltrate (>= 2 lobes)
- Yes
- Lymphocyte <= 0.8 x10^9/L
- Yes
- Smoking
- Current smoker (+3)
Result: MuLBSTA 12 of 20 — high risk (90-day mortality ~34% per source, >= 12).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- < 12
- Low risk (90-day mortality ~5% in the derivation).
- >= 12
- High risk (90-day mortality ~34% in the derivation; AUROC ~0.81, outperforming CURB-65 in viral pneumonia). A mortality-risk band, not an admission or ICU order.
What you enter
- Multilobular infiltrate (>= 2 lobes) (+5)
- Lymphocyte <= 0.8 x10^9/L (+4)
- Bacterial coinfection (+4)
- Smoking (never 0 / former +2 / current +3)
- Hypertension (+2)
- Age >= 60 (+2)
How this is calculated
Guo L, Wei D, Zhang X, et al. Clinical features predicting mortality risk in patients with viral pneumonia: the MuLBSTA score. Front Microbiol. 2019;10:2752. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.