Propensity Score Matching 방법을 이용한 간호중재 효과 평가The Use of Propensity Score Matching for Evaluation of the Effects of Nursing Interventions
- Authors
- 이숙정; 유지수; 신미경; 박창기; 이현철; 최은진
- Issue Date
- Apr-2007
- Publisher
- 한국간호과학회
- Keywords
- 경향점수; 중재 평가; Propensity score matching; Nursing intervention; Evaluation
- Citation
- Journal of Korean Academy of Nursing, v.37, no.3, pp 414 - 421
- Pages
- 8
- Journal Title
- Journal of Korean Academy of Nursing
- Volume
- 37
- Number
- 3
- Start Page
- 414
- End Page
- 421
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/56755
- ISSN
- 2005-3673
2093-758X
- Abstract
- Background: Nursing intervention studies often suffer from a selection bias introduced by failure of random assignment. Evaluation with selection bias could under or over-estimate any intervention's effects. PS matching (PSM) can reduce a selection bias through matching similar Propensity Scores (PS). PS is defined as the conditional probability of being treated given the individual's covariates and it can be reused to balance the covariates of two groups. Purpose: This study was done to assess the significance of PSM as an alternative evaluation method of nursing interventions. Method: An intervention study for patients with some baseline individual characteristic differences between two groups was used for this demonstration. The result of a t-test with PSM was compared with a t-test without matching. Results: The level of HbA1c at 12 months after baseline was different between the two groups in terms of matching or not. Conclusion: This study demonstrated the effects of a quasi-random assignment. Evaluation using PSM can reduce a selection bias impact that affects the result of the nursing intervention. Analyzing nursing research more objectively to reduce selection bias using PSM is needed.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Red Cross College of Nursing > Department of Nursing > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/56755)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.