The level of education is associated with an anxiety-depressive state among men and women – findings from France during the first quarter of the COVID-19 pandemic
Authors: Joannès Camille , Redmond Niamh M. , Kelly-Irving Michelle , Klinkenberg Josephine , Guillemot Cassandra , Sordes Florence , Delpierre Cyrille , Neufcourt Lola ,   On behalf of the EPIDEMIC consortium, Jean-Charles Basson , Grégory Beltran , Laurence Boulaghaf , Alizé Cave , Enzo Cipriani , Eleonore Coeurdevey , Aurélie Croiset , Cyrille Delpierre , Alfonsina Faya-Robles , Michelle Kelly-Irving , Marine Maurel , Sarah Nicaise , Alexandra Soulier , Meryl Srocynski 
Published: July 2023

Abstract
Context
It is widely recognised that the COVID-19 pandemic has negatively impacted individuals’ mental health. However, little emphasis has been put on the possible influence of socio-economic factors in the relationship. In the context of the COVID-19 pandemic, our objectives were (i) to assess the relationship between education level and mental health in French adults, and (ii) to study the influence of the economic, social, health and the COVID-19-related factors in men and women respectively.

Method
Data are from 32,581 individuals representative of the French population who responded to the weekly survey “Baromètre COVID-19” between April 7th and May 31st 2020. Education level was self-reported (university degree, high school qualification, vocational certificate/qualification, no diploma). Anxiety-depressive state was derived from four items related to the frequency of occurrence of depressive and anxiety symptoms, and summarized in an overall validated anxiety-depressive score. Multivariate linear regression analyses were carried out with nested adjustments of variables related to economic, social, health and COVID-19 contexts to assess the relationship between education and anxiety-depressive state.

Results
In total, 45% of individuals reported symptoms of anxiety-depressive state (53% in women versus 36% in men). Among men, those with a vocational certificate/qualification and those with no diploma had a greater risk of having a higher anxiety-depressive state compared to those with a university degree (βVocational certificate/qualification = 0.16 [0.04; 0.27]; βNo diploma = 0.75 [0.43; 1.07]) while among women, the risk of anxiety-depressive state increased as education level decreased (βBaccalaureate = 0.37 [0.25; 0.49]; βVocational certificate/qualification = 0.41 [0.28; 0.54]; βNo diploma = 0.8 [0.49; 1.12]). For both men and women, economic, health, and COVID-19 factors partly attenuate these associations while social factors marginally modified the relationship. After accounting for confounders and intermediate variables, the absence of a diploma remained associated with anxiety-depressive state among men, while the whole educational gradient of anxiety-depressive state persisted among women.

Conclusion
In France, at the end of the first wave of COVID-19, individuals with a lower level of education had a higher risk of anxiety-depressive state. This association was more pronounced for women, highlighting a process of social inequality in health possibly related to gender. This should be considered in future prevention and public health interventions.