Unique number of subject_ids does not match the number stated in documentation
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Description
Hello,
In the dataset's documentation, it is mentioned that the data contains information for 40,000 patients.
However, when computing the number of unique values in the subject_id column I receive a much greater number.
For example, I would like to know the number of patients who had a blood glucose test:
glucose_df = lebevents[lebevents['itemid'] == 50931] # 50931 is the itemid of the glucose test
print(glucose_df['subject_id'].nunique())
The output is 247,005 which is much greater than 40,000.
Thanks
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Research direction
No repository file or test is named. Reproduce the shown subject_id count for itemid 50931, then inspect the dataset documentation's 40,000-patient statement and determine which population each figure describes; the work is done when the documentation and observed counts are reconciled.
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Assessment
- Tech stack
- pandas
- Domain
- data, documentation
- Issue type
- Documentation
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 30/100