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KMID : 0191120170320091508
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Journal of Korean Medical Science
2017 Volume.32 No. 9 p.1508 ~ p.1515
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Effect of Individual and District-level Socioeconomic Disparities on Cognitive Decline in Community-dwelling Elderly in Seoul
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Kim Geon-Ha
Lee Hye-Ah
Park Hye-Sook
Lee Dong-Young
Jo In-Ho
Choi Seong-Hye
Choi Kyoung-Gyu
Jeong Jee-Hyang
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Abstract
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This study was to investigate the effects of individual and district-level socioeconomic status (SES) on the development of cognitive impairment among the elderly. A 3-year retrospective observational analysis (2010?2013) was conducted which included 136,217 community-dwelling healthy elderly who participated in the Seoul Dementia Management Project. Cognitive impairment was defined as 1.5 standard deviations below the norms on the Mini-mental status examination. In the individual lower SES group, the cumulative incidence rate (CIR) of cognitive impairment was 8.7% (95% confidence interval [CI], 8.64?8.70), whereas the CIR in the individual higher SES group was 4.1% (95% CI, 4.08?4.10). The CIR for lower district-level SES was 4.7% (95% CI, 4.52?4.86), while that in the higher district-level SES was 4.3% (95% CI, 4.06?4.44). There were no additive or synergistic effects between individual and district-level SES. From this study, the individual SES contributed 1.9 times greater to the development of cognitive impairment than the district-level SES, which suggests that individual SES disparities could be considered as one of the important factors in public health related to cognitive impairment in the elderly.
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KEYWORD
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Individual SES, District-level SES, Cognitive Impairment
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