README.md

MIMIC-IV Clinical Notes - Patients with 2+ Notes (From Original Dataset)

Dataset Description

This dataset contains discharge notes for all patients from the MIMIC-IV Note dataset who have 2 or more clinical notes. The data has been merged with admissions information to provide comprehensive patient context.

Dataset Statistics

• Total Clinical Notes: 246,158
• Unique Patients: 60,298
• Unique Hospital Admissions (hadm_id): 246,158
• Total Columns: 14

Source

• Original data: MIMIC-IV Note Dataset (discharge.csv)
• Merged with: MIMIC-IV Admissions data
• Filter criteria: Patients with >= 2 discharge notes

Columns

The dataset includes the following 14 columns:

1. note_id
2. subject_id
3. hadm_id
4. note_type
5. note_seq
6. charttime
7. storetime
8. text
9. admittime
10. dischtime
11. deathtime
12. admission_type
13. marital_status
14. race

Key Features

• Clinical Notes: Full text of discharge summaries
• Patient Demographics: Subject ID, marital status, race
• Admission Details: Admission time, discharge time, death time, admission type
• Note Metadata: Note ID, note sequence, chart time, store time

Data Quality

• All patients verified to have >= 2 clinical notes
• Inner join performed on hadm_id with admissions data
• 25 rows excluded due to missing hadm_id matches in admissions table

Use Cases

• Clinical NLP research
• Multi-document summarization
• Longitudinal patient analysis
• Healthcare AI applications

Citation

If you use this dataset, please cite the original MIMIC-IV database:

Johnson, A., Bulgarelli, L., Pollard, T., Horng, S., Celi, L. A., & Mark, R. (2023). 
MIMIC-IV (version 2.2). PhysioNet. https://doi.org/10.13026/6mm1-ek67

License

This dataset is derived from MIMIC-IV and is subject to the same usage restrictions. You must be a credentialed user with the appropriate data use agreement.