01 NIS 2002-2011 Within Year Merge
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https://figshare.com/articles/dataset/01_NIS_2002-2011_Within_Year_Merge/3568836
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NIS 2002-2011 Within Year Merge
- Each year of the NIS has a Core, Hospital and Severity file:
FileLevelID
CoredischargeKEY, HOSPID
HospitalhospitalHOSPID
SeveritydischargeKEY, HOSPID
1. The 2 dischrage-level files will trimmed down to desired variables and then
merged by KEY and saved into a temporary SAS dataset.
2. The hospital file will be trimmed and then merged into the core-severity and
saved into a permanent SAS dataset with following notation: NIS_YYYY
3. Working directory cleared after every year since very large datasets.
创建时间：
2016-08-11
