Association between Social Integration and Face Mask Use Behavior during the SARS-CoV-2 Pandemic in Japan: Results from U-CORONA Study

Association of lifestyle and flourishing during the COVID-19 pandemic in Japan

Introduction

COVID-19 have changed our lifestyle and little is known how our lifestyle associated with flourishing during COVID-19. This study examined the association between lifestyle, including sleep time, drinking, and smoking, and flourishing during the COVID-19 pandemic in Japan.

Methods

We used the population-based study, Utsunomiya COVID-19 seROprevalence Neighborhood Association (U-CORONA) survey conducted in November 2021 to examine the association between lifestyle such as sleeping time, drinking and smoking, and flourishing (n = 473). Flourishing was assessed with the flourishing index, a 10-item multidimensional scale with five domains. Multivariate linear regression analysis was performed adjusted for sex, age, income, and education.

Results

We found that the flourishing index was significantly lower in the group that slept less than 6 h than in the group that slept 6-8 h (coef = -0.49, SE = 0.17, p < 0.01). We also found that drinking once to several times/week showed higher flourishing than those who almost never drink (coef = 0.57, SE = 0.19, p < 0.01). Smoking was not associated with flourishing.

Discussion

Sleep duration and drinking habit, but not smoking, may be important for flourishing during the COVID-19 pandemic.

Factors enabling comorbidities and secondary conditions in older adults with spinal cord injury

OBJECTIVE

To examine the role of personal, social, and environmental factors predicting comorbidities and secondary conditions among older adults with spinal cord injury (SCI).

DESIGN

Cross-sectional study utilizing survey methods were used to collect the data analyzed with two distinct general linear models.

SETTING

Community-dwelling participants who resided in rural and urban areas.

PARTICIPANTS

One hundred and eighty-three (183) participants with SCI ages 45 and over at least five years post injury.

INTERVENTIONS

Not applicable.

MEASURES

Spinal Cord Injury Secondary Conditions Scale (SCI-SCS); Comorbidities Questionnaire; Spinal Cord Injury Functional Index Assistive Technology (SCI-FI/AT) Basic - Mobility; Spinal Cord Injury Quality of Life (SCI-QOL) Satisfaction with Social Roles and Activities Scale (SSRA); Cohen's Social Network-Social Integration Index, the Medical Outcomes Study (MOS) Social Support Emotional/Informational Support Scale, and the Facilitators and Barriers Survey for Mobility (FABS-Mv2). Questions were also asked from the Behavioral Risk Factor Surveillance System (BRFSS).

RESULTS

Common predictors of comorbidities and secondary conditions included age, basic mobility, primary health care payer and parking limitations. An interaction between parking and neurological classification was observed for comorbidities. Neurological classification and employment were significantly associated with comorbidities while for secondary conditions, sex, years since injury, education, satisfaction with social roles and the home environment were critical factors.

CONCLUSIONS

Our study shows the effects of demographic and injury factors, physical functioning, satisfaction with social roles, access to home environment adaptations and health resources in predicting comorbidities and secondary conditions among older adults with SCI.

Change of human flourishing during the COVID-19 pandemic in Japan: Results from population-based U-CORONA study

Longitudinal change in flourishing during the pandemic of COVID-19 would provide new insight to reveal determinants of well-being. We aimed to describe changes in flourishing during the COVID-19 pandemic in Japan and to examine the association of sex, age, education, and income with changes in flourishing. Utsunomiya COVID-19 seROprevalence Neighborhood Association (U-CORONA) study conducted in October 2020 and November 2021 was used (n = 419 in 2020 and n = 478 in 2021, and n = 327 for both waves). Flourishing was assessed using a 12-item multidimensional flourishing scale including six domains. Change of flourishing was categorized into decreased, unchanged, and increased. Multinomial logistic regression was applied to longitudinal data to estimate the relative risk ratio of increase and decrease in flourishing scores. Cross-sectional analysis showed that the mean score of flourishing was approximately seven in both waves, with no sex differences, but older adults had higher scores than young-aged adults. We found that men were twice as likely to lose their flourishing scores as women and lower levels of education were associated with 2-3 times declining flourishing scores than higher levels of education. Age and income were not significantly associated with the change of flourishing. During the COVID-19 pandemic, flourishing declined, and men and lower-educated people were more vulnerable. In prolonged difficult situations, support for men and less educated people may contribute to the prevention of declining well-being in Japan.

Social contact patterns during the COVID-19 pandemic in 21 European countries - evidence from a two-year study

BACKGROUND

Most countries have enacted some restrictions to reduce social contacts to slow down disease transmission during the COVID-19 pandemic. For nearly two years, individuals likely also adopted new behaviours to avoid pathogen exposure based on personal circumstances. We aimed to understand the way in which different factors affect social contacts - a critical step to improving future pandemic responses.

METHODS

The analysis was based on repeated cross-sectional contact survey data collected in a standardized international study from 21 European countries between March 2020 and March 2022. We calculated the mean daily contacts reported using a clustered bootstrap by country and by settings (at home, at work, or in other settings). Where data were available, contact rates during the study period were compared with rates recorded prior to the pandemic. We fitted censored individual-level generalized additive mixed models to examine the effects of various factors on the number of social contacts.

RESULTS

The survey recorded 463,336 observations from 96,456 participants. In all countries where comparison data were available, contact rates over the previous two years were substantially lower than those seen prior to the pandemic (approximately from over 10 to < 5), predominantly due to fewer contacts outside the home. Government restrictions imposed immediate effect on contacts, and these effects lingered after the restrictions were lifted. Across countries, the relationships between national policy, individual perceptions, or personal circumstances determining contacts varied.

CONCLUSIONS

Our study, coordinated at the regional level, provides important insights into the understanding of the factors associated with social contacts to support future infectious disease outbreak responses.

Severe Acute Respiratory Syndrome Coronavirus 2 Variants of Concern: A Perspective for Emerging More Transmissible and Vaccine-Resistant Strains

Novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VOC) are constantly threatening global public health. With no end date, the pandemic persists with the emergence of novel variants that threaten the effectiveness of diagnostic tests and vaccines. Mutations in the Spike surface protein of the virus are regularly observed in the new variants, potentializing the emergence of novel viruses with different tropism from the current ones, which may change the severity and symptoms of the disease. Growing evidence has shown that mutations are being selected in favor of variants that are more capable of evading the action of neutralizing antibodies. In this context, the most important factor guiding the evolution of SARS-CoV-2 is its interaction with the host's immune system. Thus, as current vaccines cannot block the transmission of the virus, measures complementary to vaccination, such as the use of masks, hand hygiene, and keeping environments ventilated remain essential to delay the emergence of new variants. Importantly, in addition to the involvement of the immune system in the evolution of the virus, we highlight several chemical parameters that influence the molecular interactions between viruses and host cells during invasion and are also critical tools making novel variants more transmissible. In this review, we dissect the impacts of the Spike mutations on biological parameters such as (1) the increase in Spike binding affinity to hACE2; (2) bound time for the receptor to be cleaved by the proteases; (3) how mutations associate with the increase in RBD up-conformation state in the Spike ectodomain; (4) expansion of uncleaved Spike protein in the virion particles; (5) increment in Spike concentration per virion particles; and (6) evasion of the immune system. These factors play key roles in the fast spreading of SARS-CoV-2 variants of concern, including the Omicron.