Abstract
Our goal is to evaluate the strengths of the associations between area-level deprivation and survival time for a variety of cancers. A total of 145 585 subjects were diagnosed with various cancers in Busan, Korea, and an area-level deprivation index constructed from several important socioeconomic variables. A multilevel Cox model was used in the analysis to investigate the effects of multiple risk factors. After adjusting for gender and age, an increased area-level deprivation index was found to be significantly associated with a higher hazard rate for major cancers. Estimated hazard ratios (95% confidence interval) were 1.08 (1.06, 1.11), 1.15 (1.13, 1.18), and 1.22 (1.18, 1.25) for the second, third, and fourth quartiles of deprivation index groups, respectively, when compared with the least deprived group. When compared with the least deprived group, the more deprived group showed significant decrease in survival time for major cancers. This finding highlights the importance of preventive and care services incorporating socioeconomic characteristics of areas.
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