adds filter to remove long los (data quality) #226
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spells with over a 2 year length of stay are incredibly rare, outside of mental health. this filter aims to remove any long length of stay that is likely caused by a data quality issue
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checked counts on databricks, is removing an expected number of rows |
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Pull Request Overview
This PR adds a data quality filter to remove hospital spells with excessively long lengths of stay (over 2 years) that are likely caused by data quality issues. The filter excludes long stays except for mental health cases or cases with 10 or more episodes.
- Filters out spells with duration > 2 years that are likely data quality errors
- Preserves mental health specialty spells (specialty codes starting with "7")
- Preserves complex cases with many episodes (10 or more)
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yiwen-h
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Nov 20, 2025
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Thank you! Note to self: add to project info as well
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spells with over a 2 year length of stay are incredibly rare, outside of mental health. this filter aims to remove any long length of stay that is likely caused by a data quality issue