Publications by authors named "Bajos N"

Article Synopsis
  • Research reveals ongoing sex and gender inequalities in ischemic heart disease, where women face worse outcomes and receive fewer guideline-recommended treatments despite lower prevalence.
  • The study analyzed 108 articles referenced in the 2019 European Society of Cardiology guidelines to assess inclusivity of women and gender considerations in cardiovascular research.
  • Findings show minimal focus on sex and gender in the literature, with only 4 out of 20 recommendations addressing sex, none addressing gender specifically, and significant fluctuations in the representation of women over time.
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  • The study examined how the risk of post-covid symptoms differed between the first wave (March-May 2020) and the second wave (September-November 2020) of the pandemic in France, focusing on data from a national population-based cohort.
  • Results showed a higher risk of 14.6% for post-covid symptoms during the first wave compared to 7.0% in the second wave, indicating an increased adjusted risk ratio of 1.36.
  • Factors such as baseline physical and mental conditions, the number of acute symptoms, and educational level influenced the risk, with women also showing higher vulnerability during the first wave.
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Inconsistent results are found regarding social inequalities related to healthcare appointment cancellations during the COVID-19 crisis. Whether rescheduling was associated with social status is unknown. By studying both cancellations and rescheduling, we comprehensively describe which social groups were affected by care disruption.

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  • - The study explores hypertension control beyond the typical "awareness, treatment, and control" model by analyzing data from over 52,000 hypertensive adults in France, focusing on their blood pressure status and treatment history from 2012 to 2021.
  • - Findings show that only 13% of participants generally achieved blood pressure control, but this figure increased to 19% when considering those who were unaware of their condition yet treated and successfully controlled.
  • - The results suggest that certain demographics, such as younger, educated women and individuals with prior cardiovascular issues, were more likely to achieve control through alternative patterns, indicating that a rigid cascade of care model may overlook important groups needing attention.
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Objective: In many countries, before COVID-19 vaccines became available, reluctance to get vaccinated was particularly prevalent among women, the most disadvantaged social groups and ethnoracial minorities, known to be at higher risk for the virus. Using a longitudinal perspective, we analyse the social determinants that are associated with the transition from attitudes towards vaccination to actual vaccination practices.

Design: Representative population-based prospective cohort.

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Lockdown imposed in the early phase of the SARS-CoV-2 outbreak represented a specific setting where activity was restricted but still possible. The aim was to investigate the cross-sectional associations between physical activity (PA) and SARS-CoV-2 infection in a French population-based cohort. Participants completed a PA questionnaire.

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In metropolitan France, estimates suggest that more than one in three adults has hypertension. Low-cost treatments are available, yet fewer than one in four hypertensive adults has a controlled level of hypertension below 140/90 mmHg. This rate is higher in other high-income countries such as Canada (65%) or Germany (52%).

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Sexual expression is fundamental to human existence and an important topic of enquiry in its own right. Understanding sexual behavior is also essential to establish effective sexual health prevention activities (e.g.

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In France, the first pandemic peak fell disproportionately on the most disadvantaged, as they were overrepresented in contaminations and in developing severe forms of the virus. At that time, and especially during lockdown, the French healthcare system was severely disrupted and limited. The issue of social differences in the use of healthcare by people experiencing symptoms of Covid-19 arose.

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This study aims to estimate and compare Roman Catholic Church-related child sexual abuse (CSA) prevalence and characteristics to CSA in other social spheres in France since 1950. Using a cross-sectional representative web-based survey of 28,026 adults in 2021, the weighted prevalence of CSA was estimated according to six social spheres of perpetration: family, Church, school, sports club, artistic activities, and summer camps. Altogether, 14.

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Objective: To assess whether lack of trust in the government and scientists reinforces social and racial inequalities in vaccination practices.

Design: A follow-up of the EpiCov random population-based cohort survey.

Setting: In July 2021, in France.

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We aimed to analyze inequalities in social isolation among older adults in a time of COVID-19 social restrictions, using a gender perspective. A random population-based survey, including 21,543 older adults (65+) was conducted during and post COVID-19 lockdown in France. Our main outcome was a three-dimension indicator of social isolation based on living conditions, i.

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Background: We aimed to study whether social patterns of exposure to SARS-CoV-2 infection changed in France throughout the year 2020, in light to the easing of social contact restrictions.

Methods: A population-based cohort of individuals aged 15 years or over was randomly selected from the national tax register to collect socio-economic data, migration history, and living conditions in May and November 2020. Home self-sampling on dried blood was proposed to a 10% random subsample in May and to all in November.

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Background: Immigrants and ethnic/racialized minorities have been identified as being at higher risk of coronavirus disease-19 (COVID-19) infection, but few studies report on their exposures and prevention behaviours. This study aims to examine the social distribution of COVID-19 exposure (overcrowding, working outside the home, use of public transport to go to work) and prevention behaviours (use of face masks, washing hands, respect for physical distance) in France during the first wave of the epidemic.

Methods: We used the EpiCov population-based survey from a random sample of individuals aged 15 years or more.

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Background: Military sexual trauma (MST) is a major public health concern, given its prevalence and mental health sequelae. This phenomenon is particularly prevalent among women in the US military, although more cases involve men given their overrepresentation. Little is known about MST and its consequences in other military settings, including in Europe.

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Article Synopsis
  • * 134,391 participants were surveyed, revealing an overall seroprevalence of 4.5%, with higher rates in densely populated areas and among specific demographic groups such as healthcare workers.
  • * The findings highlight the influence of living conditions on COVID-19 spread and underscore that contextual factors matter, particularly when testing and protective gear were scarce.
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Equal Access to the COVID-19 vaccine for all remains a major public health issue. The current study compared the prevalence of vaccination reluctance in general and COVID-19 vaccine hesitancy and social and health factors associated with intentions to receive the vaccine. A random socio-epidemiological population-based survey was conducted in France in November 2020, in which 85,855 adults participants were included in this study.

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Background: Population level data on sexual practices, behaviours and health-related outcomes can ensure that responsive, relevant health services are available for all people of all ages. However, while billions of dollars have been invested in attempting to improve sexual and reproductive health (including HIV) outcomes, far less is understood about associated sexual practices and behaviours. Therefore, the World Health Organization embarked on a global consultative process to develop a short survey instrument to assess sexual health practices, behaviours and health outcomes.

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Background: Nutritional factors are essential for the functioning of the immune system and could therefore play a role in COVID-19 but evidence is needed. Our objective was to study the associations between diet and the risk of SARS-CoV-2 infection in a large population-based sample.

Methods: Our analyses were conducted in the French prospective NutriNet-Santé cohort study (2009-2020).

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Background: Sexual harassment (SH) is prevalent in military settings and dependent on the workplace environment. Few studies have investigated this issue in non-US military settings nor have examined how contextual and individual factors related to Military Sexual Trauma (MST) vary by gender.

Methods: This study draws on a national sexual survey in the French military including 1268 servicemen and 232 servicewomen.

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Article Synopsis
  • The study examines social disparities in COVID-19 infection rates in France, focusing on how these disparities changed over time and were affected by public health policies during the early stages of the epidemic.
  • Conducted between May and June 2020, the research analyzed data from a large cohort of 77,588 adults, specifically looking at self-reported symptoms of anosmia (loss of smell) and ageusia (loss of taste).
  • Findings revealed that women and racialized minorities faced higher exposure risks and reported more symptoms, while senior executives experienced lower exposure and different symptom trends, highlighting the evolving impact of socioeconomic factors throughout the pandemic. *
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Obtaining detailed data on gender identity and sex in population-based sexual health studies is important. We convened a group to develop consensus survey items. We identified 2 items to capture data on gender identity and sex that can be used in diverse settings.

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Background: We aimed to estimate the seropositivity to anti-SARS-CoV-2 antibodies in May-June 2020 after the first lockdown period in adults living in three regions in France and to identify the associated risk factors.

Methods: Between 4 May 2020 and 23 June 2020, 16 000 participants in a survey on COVID-19 from an existing consortium of three general adult population cohorts living in the Ile-de-France (IDF) or Grand Est (GE) (two regions with high rate of COVID-19) or in the Nouvelle-Aquitaine (NA) (with a low rate) were randomly selected to take a dried-blood spot for anti-SARS-CoV-2 antibodies assessment with three different serological methods (ClinicalTrial Identifier #NCT04392388). The primary outcome was a positive anti-SARS-CoV-2 ELISA IgG result against the spike protein of the virus (ELISA-S).

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Population health surveys are rarely comprehensive in addressing sexual health, and population-representative surveys often lack standardised measures for collecting comparable data across countries. We present a sexual health survey instrument and implementation considerations for population-level sexual health research. The brief, comprehensive sexual health survey and consensus statement was developed via a multi-step process (an open call, a hackathon, and a modified Delphi process).

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