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NTIS 바로가기Journal of Korean academy of nursing = 대한간호학회지, v.49 no.5, 2019년, pp.575 - 585
박슬기 (서울대학교 간호대학.간호과학연구소) , 박현애 (서울대학교 간호대학.간호과학연구소) , 황희 (분당서울대학교병원 소아청소년과)
Purpose: The purpose of this study was to develop predictive models for pressure ulcer incidence using electronic health record (EHR) data and to compare their predictive validity performance indicators with that of the Braden Scale used in the study hospital. Methods: A retrospective case-control s...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
욕창 발생군이란 무엇인가? | 연구 기간 동안 2회 이상 입원한 경우 개별 입원을 독립 사례로 간주하였다. 욕창 발생군은 욕창발생보고서를 통해 입원 후 욕창이 발생한 환자로 확인된 환자, 욕창 비발생군은 입원기간 동안 욕창이 발생하지 않은 환자로 정의하였다. 입원기간 동안 Braden Scale 점수가 존재하지 않는 575건은 제외하여, 총 15,482건 중 14,907건(욕창 발생군 202건, 욕창 비발생군 14,705건)을 분석에 사용하였다. | |
욕창의 문제점은 무엇인가? | 욕창은 병원에서 발생하는 가장 심각한 환자안전 문제 중 하나로 사망률을 높이고, 재원기간을 늘리며, 높은 의료비 발생으로 환자뿐 아니라 병원의 재정적 부담을 가중시킨다[1]. 미국의 메디케어 환자안전 모니터링 시스템 연구(National Medicare Patient Safety Mon-itoring System Study)에 의하면 입원기간 동안 욕창 발생률이 4. | |
욕창 발생 예측모델을 개발하기 위해 콕스 비례위험 회귀모델의 종속변수는 무엇으로 설정하였는가? | 회귀모델에서 요인 선정은 단계적 선택(stepwise)을 이용하였으며, 의사결정나무 모델은 chi-square automatic interaction detector (CHAID)알고리즘을 이용하여 개발하였다. 로지스틱 회귀모델과 의사결정나무 모델의 종속변수는 ‘욕창 발생 여부’이며, 콕스 비례위험 회귀모델의 종속변수는 ‘욕창 발생 여부’와 욕창 발생군의 경우 ‘입원부터 욕창 발생까지 시간’, 욕창 비발생군의 경우 ‘입원부터 퇴원까지 시간’으로 정의하였다. |
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