MIMIC-IV Sepsis-AKI Patient Data with 7-Day Serum Albumin Trajectories

A retrospective study of 1,914 critically ill patients with early sepsis-associated acute kidney injury (SA-AKI) from the MIMIC-IV database. Data includes dynamic serum albumin levels measured over 7 days after AKI onset, linked to 30- to 365-day mortality and hospital length of stay outcomes. The dataset was published by Qiang Gao on figshare in May 2026 under a CC-BY-4.0 license.

Use Cases

• Modeling patient mortality risk based on baseline-stratified serum albumin trajectories.
• Analyzing associations between biomarker stability and hospital length of stay in sepsis-AKI patients.
• Conducting subgroup analysis to explore interactions between albumin trajectories, age, and sex.
• Validating group-based trajectory modeling (GBTM) techniques for clinical time-series data.

Strengths

• Includes 1,914 patient records from the established MIMIC-IV clinical database.
• Tracks a specific biomarker (serum albumin) over a defined 7-day window after AKI onset.
• Links exposure factors to multiple outcome measures, including 30-, 90-, 180-, and 365-day mortality.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count for the underlying data is unknown, which may limit suitability assessment.
• Data may reflect the specific patient population and practices of the source ICU database.

Provenance

Source

Medical Information Mart for Intensive Care (MIMIC)-IV database.

Collection Method

Retrospective data extraction for patients meeting early SA-AKI criteria.

Time Range

The temporal coverage of the underlying MIMIC-IV data is not specified in the description.

Freshness

Last updated 2026-05-29 04:48:28; freshness should be verified.