Association Between Health Insurance Type and Survival Outcomes: Insight Into the Impact of Socioeconomic Disparities in the Postoperative Outcomes of Abdominal Aortic Aneurysm in Korea

Figures

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  Fig. 1. Flowchart of the study population. ICD-10 = International Classification of Diseases-10, OAR = open aneurysm repair, EVAR = endovascular aneurysm repair.

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  Fig. 2. Trends in surgery for abdominal aortic aneurysm and patterns by insurance type. NHI = National Health Insurance, OAR = open aneurysm repair, EVAR = endovascular aneurysm repair.

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  Fig. 3. Comparison of long-term survival outcomes in abdominal aortic aneurysm patients based on surgical treatment and insurance type: unadjusted vs. age-adjusted analysis. (A) Unadjusted survival curve for all-cause mortality according to surgical treatment. (B) Age-adjusted survival curve for all-cause mortality according to surgical treatment. (C) Unadjusted survival curve for all-cause mortality according to insurance type. (D) Age-adjusted survival curve for all-cause mortality according to insurance type. (E) Unadjusted survival curve for AAA-related mortality according to insurance type. (F) Age-adjusted survival curve for AAA-related mortality according to insurance type. The unadjusted survival curves are shown on the left, while the age-adjusted survival curves are displayed on the right. The difference in survival curves according to surgical treatment was statistically significant before adjustment but became non-significant after age adjustment. In contrast, the difference in survival curves according to insurance type remained statistically significant both before and after adjustment. OAR = open aneurysm repair, EVAR = endovascular aneurysm repair, NHI = National Health…

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  Fig. 4. Survival analysis of EVAR and OAR cohorts based on insurance type. (A) Unadjusted survival curve for AAA-related mortality according to insurance type in the EVAR cohort. (B) Unadjusted survival curve for all-cause mortality according to insurance type in the EVAR cohort. (C) Unadjusted survival curve for AAA-related mortality according to insurance type in the OAR cohort. (D) Unadjusted survival curve for all-cause mortality according to insurance type in the OAR cohort. EVAR = endovascular aneurysm repair, AAA = abdominal aortic aneurysm, NHI = National Health Insurance, OAR = open aneurysm repair.

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  Fig. 5. Forest plot of multivariate Cox proportional hazard analysis: risk factors for abdominal aortic aneurysm -related mortality in endovascular aneurysm repair patients. SBP = systolic blood pressure, DBP = diastolic blood pressure, ALT = alanine transaminase, GFR = glomerular filtration rate.

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  Fig. 6. Relative importance of variables for survival in multivariate Cox proportional hazard analysis on endovascular aneurysm repair patients. GFR = glomerular filtration rate, DBP = diastolic blood pressure, SBP = systolic blood pressure, ALT = alanine transaminase.