Association between posterior occlusal support and tooth loss in a population-based cohort: The OHSAKA study.

OBJECTIVES: This study aimed to assess the association between posterior occlusal support (POS) and the risk of tooth loss in older adults aged ≥75 years. METHODS: This longitudinal study analyzed 94,422 participants who participated in multiple dental check-ups provided as part of the public healthcare services in Osaka, Japan, from 2018 to 2022. The participants were categorized into nine groups (A1-3, B1-4, and C1 and C2) according to their POS status using the Eichner index at baseline. The dental charts were compared between the initial and final assessments to assess tooth loss. Logistic regression analysis was used to examine the association between POS status and tooth loss, adjusted for several covariates, including age, sex, body mass index, periodontal status, oral hygiene, history of diabetes, history of hypertension, attendance at the annual dental check-up, and observational period. Furthermore, stratified logistic regression analyses were conducted using anterior or posterior tooth loss. RESULTS: After controlling for confounders, POS status was associated with tooth loss. The odds ratios (ORs) with A1 as the reference were 1.74 in A2, 2.55 in A3, 3.40 in B1, 4.74 in B2, 5.79 in B3, 6.00 in B4, 4.44 in C1, and 3.00 in C2, respectively. The ORs for anterior tooth loss were higher than those for posterior tooth loss, with the highest OR observed in B4 (21.4). CONCLUSIONS: This large population-based cohort study showed that a decreased POS was a risk indicator for tooth loss; furthermore, the risk increased even further in the anterior teeth region.

Short sleep duration and smoking initiation in university students: a retrospective cohort study.

PURPOSE: The aim of this study was to clarify an association between short sleep duration and smoking initiation. METHODS: Participants eligible for this retrospective cohort study were university students who were admitted to a single national university in Japan between 2007 and 2015. Baseline sleep duration and smoking status were measured using general questionnaires at health checkups at admission. During a 6-year observation period, smoking initiation was assessed using general questionnaires at annual health checkups. Cox proportional hazards models adjusted for clinically relevant factors were used to assess the association between sleep duration and smoking initiation. RESULTS: Of 17,493 men, including 540, 5,568, 8,458, 2,507, and 420 men with sleep duration of < 5, 5-6, 6-7, 7-8, and ≥ 8 h, respectively, smoking initiation was observed in 16.1%, 12.5%, 11.2%, 10.0%, and 11.7%, respectively, during a median observation period of 3.0 years. Men with shorter sleep duration were at a higher risk of smoking initiation (adjusted hazard ratio 1.49 [95% confidence interval 1.19-1.85], 1.11 [1.01-1.22], 1.00 [reference], 0.92 [0.80-1.06], and 1.00 [0.75-1.34], respectively). Of 8,880 women, including 267, 3,163, 4,220, and 1,230 women with sleep duration of < 5, 5-6, 6-7, and ≥ 7 h, respectively, smoking initiation was observed in 4.9%, 2.3%, 2.0%, and 2.2%, respectively, during a median observation period of 3.0 years. A similar dose dependent association was ascertained in women (2.50 [1.39-4.49], 1.18 [0.86-1.62], 1.00 [reference], and 1.22 [0.79-1.89], respectively). CONCLUSION: This study clarified that university students with short sleep duration were vulnerable to smoking initiation.

Living Arrangements Predict Frequent Alcohol Consumption Among University Students: A Retrospective Cohort Study.

PURPOSE: This study aimed to confirm the clinical impact of living arrangements on incidence of frequent alcohol consumption in university students. DESIGN: A retrospective cohort study. SETTING: A national university in Japan. SUBJECTS: 17,774 university students. MEASURES: The association between living arrangements on admission and the incidence of frequent alcohol consumption (≥4 days/week) was assessed using multivariable-adjusted Cox proportional-hazards models. RESULTS: Among 5,685, 692, and 5,151 male students living with family, living in the dormitory, and living alone, 5.0%, 6.2%, and 5.8% reported frequent alcohol consumption during the median observational period of 3.0 years, respectively. Living in the dormitory and living alone were identified as significant predictors of frequent alcohol consumption (multivariable-adjusted hazard ratios: 1.00 [reference], 1.39 [1.01-1.92], and 1.21 [1.03-1.42], respectively). On the contrary, living arrangements were not associated with the incidence of frequent alcohol consumption among of 6,091 female students, partly because of low incidence of frequent alcohol consumption (2.3%, 1.4%, and 2.6%, respectively). CONCLUSIONS: Living arrangements predicted frequent alcohol consumption among male university students, whereas not among female university students.

A Dose-Dependent Association between Alcohol Consumption and Incidence of Proteinuria and Low Glomerular Filtration Rate: A Systematic Review and Meta-Analysis of Cohort Studies.

Previous cohort studies have reported conflicting associations between alcohol consumption and chronic kidney disease, characterized by proteinuria and low glomerular filtration rate (GFR). This systematic review, which included 14,634,940 participants from 11 cohort studies, assessed a dose-dependent association of alcohol consumption and incidence of proteinuria and low estimated GFR (eGFR) of <60 mL/min/1.73 m2. Compared with non-drinkers, the incidence of proteinuria was lower in drinkers with alcohol consumption of ≤12.0 g/day (relative risk 0.87 [95% confidence interval 0.83, 0.92]), but higher in drinkers with alcohol consumption of 36.1-60.0 g/day (1.09 [1.03, 1.15]), suggesting a J-shaped association between alcohol consumption and the incidence of proteinuria. Incidence of low eGFR was lower in drinkers with alcohol consumption of ≤12.0 and 12.1-36.0 than in non-drinkers (≤12.0, 12.1-36.0, and 36.1-60.0 g/day: 0.93 [0.90, 0.95], 0.82 [0.78, 0.86], and 0.89 [0.77, 1.03], respectively), suggesting that drinkers were at lower risk of low eGFR. In conclusion, compared with non-drinkers, mild drinkers were at lower risk of proteinuria and low eGFR, whereas heavy drinkers had a higher risk of proteinuria but a lower risk of low eGFR. The clinical impact of high alcohol consumption should be assessed in well-designed studies.

Skipping Breakfast and Incidence of Frequent Alcohol Drinking in University Students in Japan: A Retrospective Cohort Study.

Frequency of alcohol drinking is a potential predictor of binge drinking of alcohol, a serious social problem for university students. Although previous studies have identified skipping breakfast as a predictor of various health-compromising behaviors and cardiometabolic diseases, few studies have assessed the association between skipping breakfast and the incidence of frequent alcohol drinking. This retrospective cohort study included 17,380 male and 8799 female university students aged 18-22 years admitted to Osaka universities between 2004 and 2015. The association between breakfast frequency (eating every day, skipping occasionally, and skipping often/usually) and the incidence of frequent alcohol drinking, defined as drinking ≥4 days/week, was assessed using multivariable-adjusted Cox proportional hazards models. During the median observational period of 3.0 years, 878 (5.1%) men and 190 (2.2%) women engaged in frequent alcohol drinking. Skipping breakfast was significantly associated with the incidence of frequent alcohol drinking (adjusted hazard ratios [95% confidence interval] of eating every day, skipping occasionally, and skipping often/usually: 1.00 [reference], 1.02 [0.84-1.25], and 1.48 [1.17-1.88] in men; 1.00 [reference], 1.60 [1.03-2.49], and 3.14 [1.88-5.24] in women, respectively). University students who skipped breakfast were at a higher risk of frequent alcohol drinking than those who ate breakfast every day.

Care needs level in long-term care insurance system and family caregivers' self-perceived time-dependent burden in patients with home palliative care for cancer: a cross-sectional study.

PURPOSE: Although home care improves patients' quality of life (QOL), several studies have suggested that home care lowers the QOL of family caregivers and decreases their mortality. To alleviate the deleterious impact of home care on caregivers, the major burdens on caregivers and the clinical characteristics of the caregivers vulnerable to the major burden needs to be clarified. METHOD: A survey questionnaire was distributed to 710 family caregivers of patients with cancer in Japan, and 342 valid responses were obtained (valid response rate: 48.2%). The Burden Index of Caregivers was used to identify the major burden on caregivers. To assess the associations of the patients' care needs level and other clinically relevant factors with the major burden, a multivariable-adjusted logistic regression model was used. RESULTS: The time-dependent burden was identified as a major burden. An adjusted model showed a nonlinear association between the care needs level and the time-dependent burden, in which the caregivers of the patients who required moderate care needs level had the highest time-dependent burden [adjusted odds ratio of none, mild, moderate, and severe care needs levels: 0.50 (95% confidence interval 0.07-2.12), 1.08 (0.43-2.57), 1.87 (1.01-3.52), and 1.00 (reference), respectively]. Additionally, older patients and younger caregivers were significantly associated with a time-dependent burden. CONCLUSION: The time-dependent burden was highest in caregivers at the moderate care needs level and younger caregivers. An imbalance between the demand and supply of care services may be improved by considering the clinical characteristics of both patients and caregivers.

Provision and related factors of end-of-life care in elderly housing with care services in collaboration with home-visiting nurse agencies: a nationwide survey.

BACKGROUND: Japan has the largest population of older adults in the world; it is only growing as life expectancy increases worldwide. As such, solutions to potential obstacles must be studied to maintain healthy, productive lives for older adults. In 2011, the Japanese government has started a policy to increase "Elderly Housing with Care Services (EHCS)", which is one of a private rental housing, as a place where safe and secure end-of-life care can be provided. The government expect for them to provide end-of-life care by collaborating with the Home-Visit Nursing Agencies (HVNA). The purpose of this study is to clarify the situation of the end-of-life care provision in EHCS in collaboration with HVNA and to examine the factors that associate with the provision of the end-of-life care in EHCS. METHODS: A two-stage nationwide survey (fax and mail surveys) were conducted. Of the 5,172 HVNA of the National Association for Visiting Nurse Services members, members from 359 agencies visited EHCS. Logistic regression analysis was conducted with the provision of end-of-life care to EHCS in 2017 as the dependent variable, and the following as independent variables: characteristics of HVNA and EHCS; characteristics of residents; collaborations between HVNA and EHCS; and the reasons for starting home-visit nursing. RESULTS: Of the 342 HVNA who responded to the collaborations with EHCS, 21.6% provided end-of-life care. The following factors were significantly associated with the provision of end-of-life care to inmates in elderly care facilities: being affiliated with a HVNA, admitting many residents using long-term care insurance, collaborating with each other for more than three years, and started visiting-nurse services after being requested by a resident's physician. CONCLUSIONS: This study clarified the situation of the provision of end-of-life care in EHCS in collaboration with HVNA and the related factors that help in providing end-of-life care in EHCS.

Changes in peripheral inflammation-related gene expression by postprandial glycemic response in healthy Japanese men.

OBJECTIVES: Continuous postprandial hyperglycemia is associated with the onset of cardiovascular disease. In recent years, the mRNA expression of inflammation-related genes in peripheral blood leukocytes has been shown to be induced by an increase in blood glucose levels. The aim of this study was to investigate differences in the expression of inflammation-related genes in peripheral blood leukocytes in response to an increase in blood glucose from individuals who consumed two kinds of breakfast meals with different glycemic indexes (GIs). METHODS: Twenty healthy Japanese men 40 to 70 y of age were given low- or high-GI meals for breakfast for 14 d. Clinical examinations were performed on days 7 and 14. Their blood glucose levels and insulin concentrations were measured from before breakfast ingestion to 120 min after. Additionally, using the blood obtained before and 120 min after breakfast, the mRNA expression levels of inflammation-related genes in peripheral leukocytes were measured. RESULTS: The blood glucose levels were significantly lower in the low-GI meal intake group at 30, 60, and 120 min after breakfast than in the high-GI meal intake group. The intake of high-GI meals for 6 d led to an increase in the mRNA levels of interleukin-1ß, S100A4, and CD18 compared with the period of low-GI meals. CONCLUSION: The intake of a low-GI breakfast for 1 wk in healthy Japanese men resulted in lower postprandial blood glucose and insulin levels, which were accompanied by a reduced expression of inflammation-related genes in peripheral blood leukocytes.

Measuring the Benefits of Respite Care use by Children with Disabilities and Their Families.

PURPOSE: The benefits of respite care in reducing the burden of caregivers of children with disabilities are well known; however, few studies have effectively quantified such benefits. The aim of the present study was to develop and validate a measure for evaluating the benefit of respite care provided to family caregivers of children with disabilities. DESIGN AND METHODS: This was a cross-sectional study. We distributed a survey questionnaire to 465 family caregivers between March and April 2017. Participants were asked to respond to items regarding benefits of respite care for themselves and their children. RESULTS: Data in relation to four domains (Child Development, Sense of Peace and Life Fulfillment among Caregivers, Mental Health Support for the Caregiver, and Expansion of Perspectives and Future Vision) were extracted to assess the benefits of using respite care. The full-scale Cronbach's α coefficient was 0.89 and ranged between 0.73 and 0.88 for each individual domain. CONCLUSIONS: The newly developed measure for assessing the benefits of respite care for family caregivers of children with disabilities was highly reliable and valid. PRACTICE IMPLICATIONS: This objective tool would allow healthcare practitioners to review the quality of respite care they provide and subsequently help them identify ways to improve.

Impact of Meal Timing on Postprandial Interstitial Fluid Glucose Levels in Young Japanese Females.

Flash glucose monitoring (FGM) provides continuous and accessible measurement of the interstitial fluid glucose (ISFG) level and this system is useful for understanding blood glucose fluctuations. We examined differences in postprandial ISFG after the main mealtimes (breakfast, lunch, and dinner) in healthy young Japanese females. Nine healthy young females (aged 21.5±0.6 y old) were enrolled in this study. ISFG was continuously measured by FGM. Participants ate the same meal three times a day consecutively, thereby satisfying their daily energy requirements. Postprandial ISFG fluctuations were evaluated for 4 h after each meal. There were no significant differences in ISFG before the 3 main meals. The postprandial ISFG peak was the lowest after breakfast, increasing in the order of lunch and then dinner. The area under the curve of the 4-h postprandial ISFG was higher after lunch and dinner than after breakfast. The results of this study suggest that postprandial ISFG differ depending on mealtimes in young Japanese females.

Quality and cost-effectiveness analyses of home-visit nursing based on the frequency of nursing care visits and patients' quality of life: A pilot study.

AIM: This pilot study aimed to analyze the cost-effectiveness of visiting nursing care, to establish a new evaluation method considering both the quality and cost of visiting nursing care. METHOD: Participants were 384 caregivers from 10 certified home-visit nursing agencies that support patients in severe conditions in Japan. They completed a survey assessing the number of nursing care visits carried out in November 2016, visiting nursing receipt data for 1 month of study and quality of life (QOL), as measured by the EuroQol-5 Dimension at their last visit, which took place 1 month later. RESULTS: We categorized participants into low-charge and high-charge groups. In the low-charge group, no relationship was found between high QOL and frequency of implementation of each type of care. In the high-charge group, participants with high frequencies of "medicine management and instruction," "description and guidance for diseases and treatment," and "nutrition and diet care" had higher levels of QOL. CONCLUSIONS: This research might contribute to establishing a cost assessment system for home-visit nursing care in Japan, which is expected to be useful in countries where the average age of the population is increasing. Care provided by visiting nurses might be divided into care items that related or did not relate to QOL. Therefore, when evaluating the quality and cost-effectiveness of visiting nursing care, it is necessary to construct an evaluation system that considers these aspects and obtain appropriate data. Geriatr Gerontol Int 2020; 20: 36-41.