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HOME > J Prev Med Public Health > Volume 44(1); 2011 > Article
Research Support, Non-U.S. Gov't Effect of Repeated Public Releases on Cesarean Section Rates.
Won Mo Jang, Sang Jun Eun, Chae Eun Lee, Yoon Kim
Journal of Preventive Medicine and Public Health 2011;44(1):2-8
DOI: https://doi.org/10.3961/jpmph.2011.44.1.2
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1Department of Health Policy and Management, Seoul National University College of Medicine, Seoul, Korea. yoonkim@snu.ac.kr
2Department of Preventive Medicine, Keimyoung University College of Medicine, Seoul, Korea.
3Institute of Health Policy and Management, Medical Research Center, Seoul National University, Seoul, Korea.
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Abstract

OBJECTIVES
Public release of and feedback (here after public release) on institutional (clinics and hospitals) cesarean section rates has had the effect of reducing cesarean section rates. However, compared to the isolated intervention, there was scant evidence of the effect of repeated public releases (RPR) on cesarean section rates. The objectives of this study were to evaluate the effect of RPR for reducing cesarean section rates. METHODS: From January 2003 to July 2007, the nationwide monthly institutional cesarean section rates data (1 951 303 deliveries at 1194 institutions) were analyzed. We used autoregressive integrated moving average (ARIMA) time-series intervention models to assess the effect of the RPR on cesarean section rates and ordinal logistic regression model to determine the characteristics of the change in cesarean section rates. RESULTS: Among four RPR, we found that only the first one (August 29, 2005) decreased the cesarean section rate (by 0.81 percent) and continued to have an impact period through the last observation in May 2007. Baseline cesarean section rates (OR, 4.7; 95% CI, 3.1 to 7.1) and annual number of deliveries (OR, 2.8; 95% CI, 1.6 to 4.7) of institutions in the upper third of each category at before first intervention had a significant contribution to the decrease of cesarean section rates. CONCLUSIONS: We could not found the evidence that RPR has had the significant effect of reducing cesarean section rates. Institutions with upper baseline cesarean section rates and annual number of deliveries were more responsive to RPR.

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