Journal of Korean Dental Hygiene Science (대한치위생과학회지)

The Korean Academy of Dental Hygiene & The Korean Society of Dental Hygiene Science (대한치과위생학회 & 한국치위생과학회)
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The Association Between Number of Remaining Teeth and Health-related Quality of Life(GOHAI) by Economic Activity Status in Elderly: Ninth Wave of the Korean Longitudinal Study of Ageing(KLoSA)

노인의 경제활동 상태에 따른 잔존치아수와 구강 건강관련 삶의 질(GOHAI)의 관련성: 고령화연구 패널조사 9차 자료를 이용하여

  • Han-A Cho (Department of Dental Hygiene, Shinhan University)
  • Received : 2024.05.10
  • Accepted : 2024.06.07
  • Published : 2024.06.30
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Abstract

Background: This study aims to determine the association between the number of remaining teeth and oral health-related quality of life according to economic activity status in elderly. Methods: Data from the 9th Korean Longitudinal Study of Ageing (KLoSA) were used to analyze 6,004 older adults aged 59 years and older. The number of remaining teeth was categorized as less than 20 and more than 20, and the Geriatric Oral Health Assessment Index (GOHAI) was used to measured the oral health-related quality of life of the elderly. Independent t-tests were performed to compare demographic, economic, sociodemographic, and health characteristics, as well as GOHAI scores, between economically active and inactive individuals. In the case of ANOVA analysis, Scheffe's post hoc analysis was performed to confirm statistical significance between groups. Linear regression analysis was conducted to determine the influence of the number of remaining teeth on GOHAI according to economic activity status. Results: Among the study population, 33.9% were economically active, which is approximately half the proportion of those were not economically active. The mean GOHAI scores were 43.32 and 40.15 for economically active and economically inactive individuals with 20 or more residual teeth, respectively (p<0.001). Simple linear regression analysis revealed that having more than 20 remaining teeth was associated with a statistically significant increase in GOHAI by approximately 4.56 times and 4.92 times compared to having fewer than 20 teeth for economically active and non-economically active individuals, respectively (p<0.001). Multiple linear regression analysis, adjusted for demographic, economic, sociodemographic, and health characteristics, showed that having more than 20 remaining teeth was associated with a statistically significant increase in GOHAI by approximately 3.62 and 2.97 times compared to having fewer than 20 teeth in economically active and non-economically active individuals, respectively (p<0.001). Conclusion: This study explored economic activity status as one of several approaches to enhance the oral health-related quality of life of the elderly. By using the number of remaining teeth as an indicator of oral health status. supporting economic activity could potentially improve both oral health and overall quality of life for older individuals. Such interventions may have positive effects on policy outcomes, including reducing economic inequality by promoting economic engagement among the elderly.

연구배경: 본 연구는 노인을 대상으로 경제활동 여부에 따라 구강건강상태로써 잔존치아수와 구강건강관련 삶의 질의 관련성을 확인하고자 한다. 연구방법: 제9차 고령화연구 패널조사자료를 사용하여 59세 이상 노인 6,004명을 분석대상으로 하였다. 잔존치아수는 20개 미만, 20개 이상으로 이분화 하였으며, 노인의 구강건강관련 삶의 질은 노인구강건강평가지수(GOHAI)를 사용하였다. 경제활동 상태에 따른 인구·경제·사회학적 특성 및 건강특성과 GOHAI의 평균을 확인하기 위해 독립표본 t-test를 실시하였으며, ANOVA 분석을 실시한 경우 Scheffe's post hoc 분석을 실시하여 집단간의 통계적 유의미함을 확인하였다. 경제활동 상태에 따라 잔존치아수가 GOHAI에 미치는 영향력을 확인하고자 선형회귀분석을 실시하였다. 연구 결과: 본 연구대상자 중 경제활동을 하고 있는 경우가 33.9%로 나타나 비경제활동을 하고 있는 경우보다 약 2배 정도 낮았다. 경제활동을 하고 있는 경우와 비경제활동을 하고 있는 경우에서 잔존치아수가 20개 이상일 때 GOHAI의 평균은 각각 43.32점, 40.15점으로 나타났다(p<0.001). 단순선형회귀분석결과 경제활동을 하는 경우와 비경제활동을 하는 경우에서 잔존치아수가 20개 이상인 경우는 20개 미만인 경우에 비해 GOHAI가 각각 약 4.56배, 4.92배 높아지는 것이 통계적으로 유의하게 확인되었다(p<0.001). 인구·경제·사회학적 특성 및 건강특성을 보정한 다중선형회귀분석결과 경제활동을 하는 경우와 비경제활동을 하는 경우에서 잔존치아수가 20개 이상인 경우는 20개 미만인 경우에 비해 GOHAI가 각각 약 3.62배, 2.97배 높아지는 것이 통계적으로 유의하게 확인되었다(p<0.001). 결론: 본 연구는 노인의 구강건강 상태를 확인할 수 있는 지표로써 잔존치아수를 활용하여 노인의 구강건강관련 삶의 질을 증진시킬 수 있는 다양한 방안 중 하나로 경제활동을 고려하였다. 노인의 사회경제적 환경의 개선방안으로 경제활동 지원을 통해 구강건강 뿐만 아니라 구강건강관련 삶의 질도 높일 수 있다면, 노인의 경제활동 활성화를 통한 경제적 불평등의 완화와 같은 정책적 개입은 긍정적인 효과를 거둘 수 있을 것으로 사료된다.

Keywords

Acknowledgement

본 논문은 2023년도 신한대학교 학술연구비 지원으로 연구되었음

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