Publications by authors named "Guessous I"

Objectives: This study aims (1) to assess the prevalence of severe fatigue among the general population of Geneva, 2 years into the COVID-19 pandemic and (2) to identify pandemic and non-pandemic factors associated with severe fatigue.

Design: Cross-sectional population-based survey conducted in Spring 2022.

Setting: General adult population of Geneva, Switzerland.

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Future time perspectives (FTP) and future-related concerns in adolescence remain underexplored. We aimed to identify factors associated with limited FTP and describe future-related concerns. Data were drawn from a population-based sample of adolescents aged 14-17 participating in the SEROCoV-KIDS cohort study, in Geneva, Switzerland (October 2022).

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Background: The present analysis aimed to assess the mediating role of psychosocial and behavioural factors in socio-economic inequalities in health-related quality of life (HRQoL) among children and adolescents.

Methods: Cross-sectional data was drawn from the randomly selected SEROCoV-KIDS cohort study in Geneva, Switzerland. Associations of socio-economic conditions (parents' highest education, household financial situation) with HRQoL, psychosocial (parent-child relationship, school difficulties, friends, extracurricular activities) and behavioural factors (screen time, physical activity, green spaces time, sleep duration), along with associations of psychosocial and behavioural factors with HRQoL, were evaluated with generalized estimating equations.

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Abusive head trauma (AHT) is a type of neurotrauma that accounts for significant morbidity and mortality. It is characterized by a constellation of neurologic and radiologic signs indicative of abuse in children aged zero to five years. Detection of these cases could be a challenging endeavor and is entirely contingent on the acumen of the healthcare professionals.

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Chatbots are computer programs designed to engage in natural language conversations in an easy and understandable way. Their use has been accelerated recently with the advent of large language models. However, their application in medicine and healthcare has been limited due to concerns over data privacy, the risk of providing medical diagnoses, and ensuring regulatory and legal compliance.

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Backgrounds: Acne vulgaris is one of the most common skin conditions worldwide among adolescents. Beyond its physical manifestations, acne can leave invisible psychological scars.

Objectives: We aimed to examine the protective and risk factors of acne-related quality of life, and its association with mental health outcomes.

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Cognitive symptoms persisting beyond the acute phase of COVID-19 infection are commonly described for up to 2 years after infection. The relationship between cognitive performance, in particular episodic memory processes observed chronically after infection, and cytokine levels in the acute phase of COVID-19 has not yet been identified in humans. To determine whether the levels of cytokines IL1β, IL-6 and TNFα secreted in the acute phase of SARS-CoV-2 infection are associated and predict verbal and visuospatial episodic memory performance in humans 6 to 9 months and 12 to 15 months post-infection.

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Article Synopsis
  • The study explores the relationship between metabolic disorders and circadian dysfunction, revealing that changes in blood chemistry due to metabolic issues can alter circadian rhythms in cells.
  • Researchers found that serum from diabetic and obese subjects lengthened the circadian period in U2OS cells, particularly linked to insulin resistance factors.
  • Genetic analysis pinpointed variants related to insulin sensitivity and metabolism, specifically highlighting branched chain amino acids as significant components influencing the circadian system in the context of metabolic disorders.
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  • The study aims to investigate how organized mammography screening programs affect breast cancer screening participation across different socioeconomic groups in Switzerland, which has a diverse linguistic context.
  • Data from 14,173 women was analyzed using various socioeconomic indicators, and Poisson regression was employed to assess the effectiveness of these screening programs.
  • Results showed that while screening programs increased participation significantly, they did not address socioeconomic inequalities in all regions, highlighting the need for public health agencies to tailor initiatives to respect cultural differences and improve equity.
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Background: Out-of-hospital cardiac arrest (OHCA) incidence and survival often vary within regions according to patient-related and contextual factors. This study aims to establish the overall spatial dependence of incidence, bystander cardiopulmonary resuscitation (BCPR) and 48-h survival of OHCA with their associated demographic and socioeconomic characteristics in a Swiss region.

Methods: We conducted a retrospective study using data of all OHCAs recorded between 2007 and 2019 in the canton of Vaud and, more specifically, in the Lausanne area.

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Objective: We assessed trends in socioeconomic inequalities in cardiovascular risk factors prevalence among Swiss adults from 2008 to 2019.

Methods: Using data from the Bus Santé study, an annual survey of adults living in Geneva, Switzerland, we calculated the prevalence per period and by demographic and socioeconomic indicators, assessing inequality trends using the relative index of inequality (RII) and the slope index of inequality (SII).

Results: Among 10,739 participants, most CVD risk factors decreased over time, while diabetes, obesity, and smoking prevalence remained steady.

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  • The study investigates the effects of using media before bedtime on sleep quality and patterns in adults, considering factors like age, mental health, and other behaviors.
  • Data was collected from over 4,000 adults and revealed that using screens before sleep is linked to later bedtimes, shorter sleep durations, and increased daytime sleepiness.
  • The research found that younger adults and those with better mental health are more affected by bedtime media use, suggesting that reducing screen time at night is essential for improving sleep among all adults, particularly those with mental health challenges.
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Introduction: Since its emergence in late 2019, the SARS-CoV-2 virus has led to a global health crisis, affecting millions and reshaping societies and economies worldwide. Investigating the determinants of SARS-CoV-2 diffusion and their spatiotemporal dynamics at high spatial resolution is critical for public health and policymaking.

Methods: This study analyses 194,682 georeferenced SARS-CoV-2 RT-PCR tests from March 2020 and April 2022 in the canton of Vaud, Switzerland.

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Objectives: There have been concerns that the COVID-19 pandemic and the measures used to contain it impacted the cognitive health of older adults. We therefore examined the prevalence of subjective cognitive decline, and its associated risk factors and health consequencs, among dementia-free older adults 2 years into the pandemic in Switzerland.

Study Design: Population-based cohort study.

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Purpose: Socioeconomic status (SES) influences the survival outcomes of patients with early breast cancer (EBC). However, limited research investigates social inequalities in their quality of life (QoL). This study examines the socioeconomic inequalities in QoL after an EBC diagnosis and their time trends.

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  • Mental health initially declined during the early COVID-19 pandemic but showed notable improvement as restrictions were lifted, indicating resilience among the general population.
  • A study involving 5624 adults tracked anxiety and depression symptoms from February to June 2021 and into 2022 and 2023, revealing a consistent decline in these symptoms, particularly among women and younger individuals.
  • Despite the overall improvement, significant mental health disparities persist among vulnerable populations, such as socioeconomically disadvantaged individuals and those living alone, underscoring the need for ongoing support from government and healthcare systems.
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Introduction: SARS-CoV-2 mainly infects respiratory endothelial cells, which is facilitated through its spike protein binding to heparan sulphate. Calcium dobesilate (CaD) is a well-established, widely available vasoactive and angioprotective drug interacting with heparan sulphate, with the potential to interfere with the uptake of SARS-CoV-2 by epithelial cells. The CADOVID trial aims to evaluate the efficacy and safety of CaD in reducing the SARS-CoV-2 viral load in non-hospitalised adult patients diagnosed with COVID-19, confirmed by a positive SARS-CoV-2 PCR, including its efficacy to reduce the impact of persistent COVID-19 symptoms.

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  • The study investigates the use of complementary medicine among patients during the COVID-19 pandemic, particularly its relationship with vaccination status.
  • It involved a survey of 12,246 outpatients from the Geneva University Hospitals, focusing on their complementary medicine usage and vaccination after being tested for COVID-19.
  • Results showed that 63.7% of participants used complementary medicine, with higher usage among women, middle-aged individuals, and those with pre-existing health conditions or previous SARS-CoV-2 infections.
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  • Self-rated health is an important subjective measure of overall health, influenced by physical, mental, and socio-economic factors, and can be useful for healthcare providers.
  • In a study of the Specchio cohort in Geneva, Switzerland, researchers examined how self-rated health evolved during the COVID-19 pandemic, analyzing data from 2021 to 2023 with a focus on consistent good health across various predictors.
  • Results showed that nearly 30% of participants experienced a decline in self-rated health, while 12.1% maintained very good health, with positive lifestyle choices and social support correlated with better health outcomes.
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Background: Despite numerous observations of neuropsychological deficits immediately following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, little is known about what happens to these deficits over time and whether they are affected by changes in fatigue and any psychiatric symptoms. We aimed to assess the prevalence of neuropsychological deficits at 6-9 months and again at 12-15 months after coronavirus disease 2019 (COVID-19) and to explore whether it was associated with changes in fatigue and psychiatric symptoms.

Methods: We administered a series of neuropsychological tests and psychiatric questionnaires to 95 patients (mean age = 57.

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Whether cardiovascular risk scores geographically aggregate and inform on spatial development of atherosclerotic cardiovascular diseases (ASCVD) remains unknown. Our aim is to determine the spatial distribution of 10-year predicted cardiovascular risk and ASCVD, and to compare the overlap of the resulting spatial distributions. Using prospective data from the CoLaus|PsyCoLaus cohort study (2003-2021) we computed SCORE2 in participants free from ASCVD.

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Several studies have been published in 2023, in the field of general internal medicine, addressing various aspects of health and covering topics ranging from hormonal treatment of menopause to the management of chronic and acute diseases. A selection of articles was chosen for this update in outpatient general internal medicine, showing recent studies on outpatient care of patients (treatment, follow-up). The summary of articles is supplemented this year by a table of medical recommendations published in 2023, modestly proposed, and covering various areas.

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