The purpose of this study was to examine the relationship of predisposing, enabling, need factors and oral health care factors to the dental utilization in 4,521 senior citizens based on the 5th National Health and Nutrition Examination Survey data. As for the relationship of predisposing, enabling and need factors to the necessity of denture, higher academic credential and higher income level that were respectively one of predisposing and need factors led to a higher necessity of denture, and the relationship of these factors was statistically significant. As to influential factors for their dental utilization in Model 1, there were significant differences according to gender, marital status and whether to subscribe to private health insurance or not. In Model 2, the need factors of Model 1 were adjusted. As a result, the respondents who didn't receive any unsatisfactory dental treatment made 1.35-fold more dental utilization, and the respondents who complained about mastication difficulty made 1.34-fold more dental utilization. There were significant differences according to gender, age, marital status, academic credential, whether to subscribe to private health insurance, unsatisfactory dental treatment experience and mastication difficulty. Age, unsatisfactory dental treatment experience and whether to complain about mastication difficulty or not made statistically significant differences to the dental utilization in Model 3 that involved oral health status. The above-mentioned findings illustrated that the predisposing factors, the enabling factors and the need factors exerted an influence on the elderly dental utilization. As there are a variety of factors to affect elderly dental utilization, its required to make an effort to boost the accessibility of the elderly to dental service in order to improve their oral health of the elderly.
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.Objectives: This empirical study aimed to identify the differences in expenditures by household income level, as well as the patterns of dental care spending by dental services. Methods: We analyzed the Korea Health Panel's data collected between 2008 and 2010. We calculated expenditures by service items by itemizing dental care services such as conservative, prosthetic, orthodontic, periodontal, surgical, preventive, dental implant care. Then we obtained the ratios of spending per item and per visit to overall out-of-pocket spending on dental care and used these as the weights for dental care cost allocation. Income quintiles were derived using the equivalence scale. Kakwani's concentration index was used to determine the degree of disparity by income quintile, and 95% confidence intervals were computed. Results: Out-of-pocket expenditures on dental care steadily increased over time and income quintile. The analysis of dental care spending by income quintile revealed that the level of expenditure of the first income quintile was 3.6 times lower than that of the fifth income quintile. In terms of expenditure comparison between 2008 and 2010, the first quintile households showed an increased spending on prosthetic and periodontal treatments, whereas the fifth quintile households spent a relatively high proportion on orthodontic and dental implant care. The concentration index revealed that conservative services and root canal treatments was significant and positive, indicating that the demand for, and utilization of, these services increase as household income increases. In contrast, prosthetic services showed a significant negative trend, indicating that these services are not as common among those with higher incomes. Conclusions: To address the problems associated with the disparity in dental care expenditures based on income levels, it is necessary to establish policies that expand health insurance coverage and provide other supportive measures for low-income populations. . 분석은 패널에 포함된 가구원 중 의료이용을 하지 않은 가구
The aim of the present study was to assess the regional deprivation and individual factors that influence how far a person will travel to access dental care. Using data from the Korea Health Panel (2008 to 2011), we selected a group of 4,256 subjects and geocoded their homes and dental hospitals/clinics. Using the road network analysis, we calculated the distance traveled by the subjects for dental care. We used the generalized estimating equation (GEE) for repeated data analysis and included an interaction term between regional deprivation and individual income to determine the effects of the two factors on the choice of a dental hospital/clinic. When the regional deprivation index was divided into three quarters (high, middle, and low), urban areas had higher”high” and “low" levels of deprivation, and rural areas had relatively higher middle level of deprivation. GEE regression showed that the level of education, regional deprivation level, and income all affected the distance traveled to dental clinics. The regional deprivation level had a higher association than income with the travel distance. At the same income level, subjects who lived in the least deprived areas were more likely to travel longer distances than subjects living in the most deprived areas. Regarding the distribution of dental hospitals/clinics, incentive based dental polices for either dental providers or patients are needed that will assure the delivery of dental care despite spatial inequality.
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