강북삼성코호트연구 KSCS 소개

KSCS 소개

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강북삼성코호트 소개 - Kangbuk Samsung Health Study

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KSHS(Kangbuk Samsung Health Study)

A retrospective cohort was established using the health check-ups data of the patients at Kangbuk Samsung Hospital from 2002 to 2010. This data is being cleared and constructed by researchers at Kangbuk Samsung Hospital and at Johns Hopkins Bloomberg School of Public Health, and it includes about 290,000 patients with 690,000 visits.

Data cleaning process

data request & download -without original unique identifier/with a new assigned study-id read data files with stata -by types of variables examine indibidual variable data files -check potential errors including duplicates -define labels -check inconsistency marge (combine) indibidual variables -comprehensive visits versus other visits -define index visit/define incorrect id create stata data set for analysis -apply labels & possible ranges -impute values for limits of deterction -create derived variables

Data sources

Local equipment or server -Raw exam values ocs/emr storage -Raw values ocs/emr storage -Reported values variable data file (*.csv)

Kangbuk Samsung Health Study visits (2012. 10.)

후향적 자료 참여자 수
YEAR SEOUL SUWON TOTAL
2002 33,178 18,183 51,361
2003 37,944 21,774 59,718
2004 40,400 26,994 67,394
2005 46,286 29,808 76,094
2006 49,299 32,808 82,107
2007 54,073 34,045 88,118
2008 56,535 35,275 91,810
2009 59,980 37,495 97,475
2010 4,840 846 5,686
TOTAL 382,535 237,228 619,763
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