CoviPrev: How Have Lockdowns Affected Mental Health?

This study aims to study changes in behaviour and mental health during the COVID-19 pandemic in the French population


1. French population’s mental health at the beginning of the lockdown. At the end of the first week of lockdown, population mental health had considerably worsened, compared to pre-lockdown data. Respondents reported twice the usual prevalence of anxiety disorders (27% compared to 13.5%), and their life satisfaction (score > 5 out of 10) diminished by 20 points (66% compared to 85%).

2. Evolution during and after lockdown (Figure 1). On average, respondents’ mental health improved between wave 1 (23-25 March) and wave 8 (18-20 May) of the survey, with the end of the lockdown having a positive impact.

Figure 1. Prevalence and trends of mental health indicators and sleep problems (weighted %)

Description of the Study:

  • Title: CoviPrev.
  • Principal Investigator: Santé Publique France.
  • Study Population: 2000 people over 18 years of age living in France.
  • Study Type: Observational.
  • Methods:
    – Repeated quantitative surveys on independent samples.
    – Self-administered questionnaires completed online using the CAWI (Computer Assisted Web Interview) system.
    – Samples of 2,000 people aged 18 and over living in metropolitan France recruited by the BVA Access Panel.
    – Quota sampling (gender, age, socio-professional category of the respondent, region, city category) adjusted to the 2016 general population census.

Objectives of the Study:

Principal Objectives:
(1) To monitor the adoption of protective measures and the health of the population during the confinement and deconfinement period.
(2) To collect the necessary information to guide and adjust preventive efforts.
(3) Monitor health inequalities.
(4) Exploit knowledge useful for the management of future pandemics.

More about this Study:

Scientific Context: On 17 March 2020, the French government implemented nationwide lockdown measures in response to the increase in COVID-19 cases and deaths. It was in this context that Santé Publique France launched a survey to monitor the mental health and behaviour of the population in order to quickly collect useful data to coordinate a preventive response. The survey analysed the degree of adoption of hygiene and physical distancing measures (both key determinants of the evolution of the epidemiological situation) and the mental health of the population.

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