Socio-Economic Inequality in Survival of Percutaneous Coronary Interventions
- Authors
- 이희영; 임준
- Issue Date
- Aug-2014
- Publisher
- 한국자료분석학회
- Keywords
- Socio-economic position; Percutaneous coronary intervention; Quality; Survival; Korea
- Citation
- Journal of The Korean Data Analysis Society, v.16, no.4, pp.1745 - 1753
- Journal Title
- Journal of The Korean Data Analysis Society
- Volume
- 16
- Number
- 4
- Start Page
- 1745
- End Page
- 1753
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/13538
- ISSN
- 1229-2354
- Abstract
- The rate of percutaneous coronary interventions (PCI) is rapidly increasing but their long-term survival and the contribution of the socio-economic position (SEP) and the quality, have not been evaluated in Korea. The aim of this study was to examine differences in the long-term survival rates of PCI patients according to SEP, focussing on the role of the quality of PCI. A respective observational follow up study was done in 1001 patients diagnosed from October to December 1997 at 25 centers in Korea. Income status and health-care utilization were assessed with National Health Insurance data and survival during 1997-2003 was identified by death certificate. Hazard ratios (HR) and 95% confidence intervals (CI) were derived from Cox proportional hazards regression. The high-income group had higher rates of survival than the low-income group. The adjusted HR of the low-income group were consistently elevated in reference to the high-income group (2.89, 95% CI: 1.75-4.79). The lower annual PCI volume group had larger adjusted HR than the higher annual PCI volume group (1.94, 95% CI: 1.32-2.86). This Korean study revealed similar patterns of association as previously reported for other countries and health care systems. PCI volume in hospital as a proxy indicator of quality of PCI procedure contributes to longer survival times, regardless of SEP.
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