한국 노인의 인구·사회경제적 특성과 미 충족 치과진료와의 관련성

정은서,안금선 한국치위생학회 2018 한국치위생학회지 Vol.18 No.6

Objectives: This study investigated the relationship between demographic and socioeconomic characteristics of the Korean elderly and their unmet dental care needs, by using the 2015 data from the 6th Korea National Health and Nutrition Examination Survey (NHANES). Methods: In total, 1,372 elderly persons aged 65 and over, who responded to the 6th NHANES, were included in the final analysis. Logistic regression analysis was performed in order to identify any relationship between demographic and socioeconomic characteristics and unmet dental care needs. Results: The rate of unmet dental care needs was shown to be less by 0.799 times in the elderly who reside in dong than those who live in eup and myeon (OR: 0.799, 95% CI: 0.679-0.959). Unmet dental care needs were higher in participants with ‘low’ and ‘below average’ than ‘above average’ income, by 1.645 times (OR: 1.645, 95% CI: 1.087-2.366) and 1.172 times (OR: 1.172, 95% CI: 1.108-1.880), respectively. Elderly individuals living alone had a higher rate of unmet dental care needs than those living with their family by 1.157 times (OR: 1.157, 95% CI: 1.084-1.498). Conclusions: Demographic and socioeconomic factors influenced unmet dental care needs, causing inequality. Proper policy support to the vulnerable should be considered in order to enhance the elderly’s access to dental care.

Development of a liquid-based cytology method for detecting cervical cancer cells using functional gold nanorods

정은서,박종준,김하영,이성준,최용현,Masayoshi Tanaka,최종훈 한국화학공학회 2023 Korean Journal of Chemical Engineering Vol.40 No.2

A cytopathology test for cervical cancer diagnosis has been introduced to complement the histopathology test. This study developed a new cervical cancer diagnostic method that complements the existing liquid cytology to reduce the diagnostician’s skill dependence and to improve diagnostic accuracy. With the ease of introduction of surface functional groups and their high biocompatibility and stability, gold nanomaterials have been used to diagnose numerous biomolecules. CA125 and p16 markers were chosen as protein markers uniquely present in cervical cancer. Bioconjugation technology was used to form a stable bond between the target antibody and gold nanorods. Antibody-gold nanorods were administered to cervical cancer cells as a factor for optical microscopic analysis. The degree of cancer cell labeling was determined through additional fluorescence microscopy analysis. Additionally, a liquid-based cytology test mimicking the clinical environment was prepared, and the false-positive rate, false-negative rate, and accuracy were determined when the study strategy was implemented. The strategy validated in this study (antibody-gold nanorod-based cervical cancer diagnosis) suggests a method that can reduce the dependence on experts for the cancer cytology and can increase test accuracy.

노인의 구강건강과 자살시도와의 관련성 분석 : 제 7기(2016-2018년) 국민건강영양조사를 바탕으로

정은서,이경희 한국치위생학회 2020 한국치위생학회지 Vol.20 No.3

Objectives: This study investigated the association between oral health and suicide attempts in adults aged 65 years or older using the 7th Korea National Health and Examination Survey (KHANES, 2016-2018). Methods: Of the total 24,269 participants of the 7th KHANES (2016-2018), 1,488 adults aged 65 years or older who had an oral health examination were selected. Variations in suicide attempts with demographic characteristics and perceived oral health status were analyzed using the χ2 test, and the association between oral health and suicide attempts was analyzed using the logistic regression model. Results: The suicide attempt rate was higher among older adults with chewing (p<0.01) and speaking (p<0.05) difficulties. The odds ratio for a suicide attempt was 1.05 times higher among those with tooth loss (p<0.05). Conclusions: Our results showed that older adults with tooth loss had an increased risk of suicide. Thus, it is important to prevent tooth loss, in the first place, through proper oral health management. If tooth loss occurs, appropriate treatment should be prioritized to facilitate functional recovery. Finally, national support is required for older adults with limited access to dental care.

운전자의 행동과 심리분석 결과에 오토인코더를 적용한 운전자 감정인식 모델개발

정은서,김서희,홍윤정,양인범,우지영 한국컴퓨터정보학회 2023 韓國컴퓨터情報學會論文誌 Vol.28 No.3

운전 중 감정 인식은 사고를 예방하기 위해 꼭 필요한 과제이다. 더 나아가 자율 주행 시대에서 자동차는 모빌리티의 주체로 운전자와의 감정적인 소통이 더욱 요구되고 있으며 감정 인식 시장은 점점 확산되고 있다. 이에 따라 본 연구 방안에서는 수집하기 비교적 용이한 데이터인 심리데이터와 행동 데이터를 이용해 운전자의 감정을 분류하는 인공지능 모델을 개발하고자 한다. 오토인코더 모델을 통해 잠재 변수를 추출하고, 이를 본 분류 모델의 변수로 사용하였으며, 이는 성능 향상에 영향을 미침을 확인하였다. 또한 기존 뇌파 데이터를 포함했을 때 보다 본 논문이 제시하는 프레임워크를 사용하였을 때 성능이 향상됨도 확인하였다. 최종적으로 심리 및 개인정보데이터, 행동 데이터만을 통해 운전자의 감정 분류 정확도 81%와 F1-Score 80%를 달성하였다.

Vision-Language 모델에서의 Variational 오토인코더와 대조 학습을 이용한 멀티모달 정렬

정은서,김균엽,강상우 한국정보과학회 2023 정보과학회 컴퓨팅의 실제 논문지 Vol.29 No.11

Many previous vision-language model studies have been proposed to train image-text data with each encoder independently. Since these models process each modality independently on different encoders, a heterogeneity gap occurs because there is no association between image embedding and text embedding, and each has different embedding vector spaces. Thus, we propose a Transformer-VAE-CL model by adding variational autoencoder and contrastive learning structures to the existing Transformer-based pretrained model to solve this problem. We train the model using the proposed methodologies so that image embedding and text embedding have similar vector representations. The model training and evaluation use the MSCOCO captioning dataset, and performance is evaluated by BLEU, ROUGE-1, ROUGE-L, and METEOR. The Transformer-VAE-CL model using a variational autoencoder and contrastive learning proposed in this paper obtains 12.1 for BLEU, 46.1 for ROUGE-1, 44.7 for ROUGE-L and 39.9 for METEOR, higher performance than the existing Transformer-based model.

전신체조를 병행한 입 체조 프로그램이 노인의 정신건강에 미치는 영향

정은서,서수연,이경희 한국치위생학회 2022 한국치위생학회지 Vol.22 No.1

Objectives: This study investigated the influence of oral exercise programs with whole-body exercises on the mental health of the elderly. Methods: Elderly individuals aged 65 years or older were assigned to an experimental group and a control group. Oral exercises with whole-body exercises were conducted in the experimental group for 40 minutes, twice weekly, during 5 weeks from May to June 2021. To evaluate the effectiveness of the program, the oral health related quality of life (OHIP-14, GOHAI), mental health, happiness, and social support of the elderly were explored both before and after the execution of the program in the experimental group. A paired sample t-test was performed to check the changes in the factors investigated, both before and after the execution of the program in the two groups. Results: The values of difference between the experimental and control group were compared in relation to the dependent variables, before and after the execution of the oral exercise program with the whole-body exercises. It was found that statistically significant differences in the OHIP-14 (p=0.163), GOHAI (p=0.156), and feelings of happiness in the elderly (p=0.280) were not evident in the experimental group. However, statistically significant differences emerged with regard to the mental health and provision of social support of the elderly (p<0.05). Conclusions: It was found that the oral exercise program with whole-body exercises executed in this study were effective in improving the mental health and social support of the elderly. However, no significant differences were shown in oral health relating to quality of life and feelings of happiness. It is considered that these findings need to be verified by means of future long-term studies.

치매 노인의 구강건강관리실태 및 문제점에 관한 질적 연구

정은서,최윤영,이경희 한국치위생학회 2019 한국치위생학회지 Vol.19 No.4

Objectives: The purpose of this study was to investigate the present conditions and problems of oral health care in senior citizens with dementia using a qualitative research method, through focused group interviews. Methods: Data was collected for approximately one month from May 2019. The subjects were divided into two groups: care workers and family caregivers. Fifteen participants were included in the study. Results: In-depth interviews with the care workers revealed the following three categories: characteristics of senile dementia patients, oral health care in senile dementia patients, and oral health care education. In-depth interviews with the family caregivers revealed the following four categories: characteristics of senile dementia patients, oral health care in senile dementia patients, oral health care education, and burden of care. The central themes common to both the care workers and family caregivers were the challenges owing to the characteristics of senile dementia patients, poor health condition of the senile dementia patients, difficulty in oral health care of the senile dementia patients, the desire to receive oral health care education and related information, and to access the information more easily. Additional central themes specific to the care workers were, the applicability of the intervention programs, variability between the facilities, and the problems of oral health care education. An additional central theme specific to the family caregivers was the burden of care. Conclusions: It is necessary to provide oral health care education and information to care workers and family caregivers of senile dementia patients, and to manage and support the dental health professionals ready to care for senile dementia patients. In addition, support to the family caregivers should not be limited only to the financial aspects, but also consider the psychological and emotional difficulties.

통합 인지기능 향상 프로그램이 중년층의 인지기능, 구강건강, 정신건강에 미치는 영향: 비대면 방식의 중재 적용

정은서,이경희,서수연 한국치위생학회 2023 한국치위생학회지 Vol.23 No.1

Objectives: We developed an integrated cognitive function improvement program comprising cognitive, emotional, and physical domains, and remotely applied it to middle-aged adults to investigate its effects on oral health, cognitive function, and mental health improvement. Methods: The experimental group underwent the program remotely, using the Zoom platform. A total of 24 participants were recruited and divided into 12 experimental and 12 control groups. The program comprised cognitive, emotional, and physical activities. The sessions lasted 90 min and were performed twice a week for 6 weeks from April to May 2022. Results: Cognitive function, arousal, physical, and mental stress were significantly improved in the experimental group after the intervention than at the baseline (p <0.05). Regarding oral health, tongue plaque decreased 1.34-fold (p <0.01) and saliva increased 1.04-fold (p <0.05) in the experimental group after the intervention than at the baseline. Moreover, the experimental group showed significant improvements in tongue plaque and saliva than the control group (p <0.05 for tongue plaque and p < 0.01 for saliva). Regarding mental health, social support significantly increased 11.67-fold (p <0.05) in the experimental group than at the baseline. The experimental group also showed significantly improved social support than the control group (p <0.01). Conclusions: The non-face-to-face integrated cognitive function improvement program for middle-aged adults improved their cognitive function and oral and mental health. Based on these findings, this program may be a useful health program tool for middle-aged individuals.

주관적인 치아에 대한 인식 및 만족도와 자아존중감과의 관련성

정은서,이경희 한국디지털정책학회 2016 디지털융복합연구 Vol.14 No.2

암생존자의 주관적 구강건강 및 정신건강이 건강관련 삶의 질(EQ-5D)에 미치는 영향: 제8기(2019-2020년) 국민건강영양조사를 바탕으로

정은서 한국치위생학회 2023 한국치위생학회지 Vol.23 No.5

Objectives: This study aimed to prepare basic data to improve the health-related quality of life of cancer survivors by confirming their oral and mental health statuses and identifying factors affecting their health-related quality of life. Methods: Of all participants in the 8th KNHANES (2019–2020), adults aged 19 years or older who responded ‘yes’ to the diagnosis of cancer and 404 cancer survivors who responded ‘none’ to the current cancer prevalence item were selected as the final research participants. Multiple regression analysis was conducted to confirm the effect of cancer survivors’ oral and mental health on health-related quality of life. Results: Subjective oral health (p<0.01), chewing problems (p<0.05), subjective health (p<0.001), and depression (p<0.01) had an effect on health-related quality of life from multiple regression analyses. Conclusions: Therefore, oral and mental health promotion may improve health-related quality of life. Thus, it is necessary to recognize the importance of oral and mental health and implement preventive education and programs.