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Journal of Korean Critical Care Nursing 2009;2(1):48-57.
Published online March 31, 2009.

중환자 분류도구(WMSCN)의 신뢰도, 타당도 및 환산지수 검증
유정숙, 권은옥, 김순희, 조용애
1서울대학교병원 특수간호과
2서울대학교병원 내과계중환자실
3서울아산병원 외과계중환자실
4삼성서울병원 간호교육팀
Reliability, Validity, and Conversion Index of the Workload Management System for Critical Care Nurses(WMSCN)
Cheong-Suk Yoo, Eun-Ok Kwon, Soon-Hee Kim, Yong-Ae Cho
1Special Nursing, Seoul National University Hospital
2MICU, Seoul National University Hospital
3SICU2, Asan Medical Center
4Development, Samsung Medical Center
Abstract
Purpose
The purpose of this study is to establish reliability and validity and to identify the conversion index.
Method
The WMSCN for ICU was revised from Workload Management System for Nurses(WMSN) of Walter Reed Army Hospital. Reliability of the WMSCN was evaluated interrater reliability between head nurses and staff nurses at 124 patients in April 2008. Validity through the correlation between direct nursing care hours and WMSCN score was conducted at 20 ICUs of 10 hospitals. Finally the conversion index was identified by total nursing hours and it divided by WMSCN score.
Results
The scores by nurses were highly correlated with head nurses’(p=.967), and also scores of the WMSCN were highly correlated with the direct nursing care hours(p<.001). The distribution of patient classification ranks into class V(61.3%), class IV(24.2%) and class VI(11.3%). The scores of the WMSCN were no differences between MICU and SICU. Finally, the conversion index was 8.2 minutes.
Conclusion
WMSCN is available to classify the nursing workload for critical care patients. The repeated evaluation of validity and reliability are requisite to use WMSCN effectively. And the conversion index should be adjusted to estimate the appropriate staffing in Korea.
Key Words: Workload Management System for Critical Care Nurses(WMSCN), Interrater reliability, Validity, Conversion index
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