Since December 2019, the world is facing a new disease (COVID-19), which is caused by the Coronavirus (Sars CoV-2). WHO declared the disease of COVID-19 as a pandemic in February 2020. Since then, many countries around the world have imposed lockdown (quarantine at home), as the main measure to prevent the spreading of the disease. In Greece, the lockdown was officially imposed from March, 23rd, 2020. This unprecedented situation may have caused changes in adults' and children's dietary and lifestyle habits.~Data were collected via an online survey consisting of 70 questions. Study participants were enrolled after signing an informed consent form. The questionnaire self-reported by volunteers (parents of children aged between 2-18 years old). The survey had 3 sections. The first section focused on participants' sociodemographic data (e.g. gender, age, city of residence and socioeconomic level). The second and third sections contained questions about the parents' (section 2) and their children's (section 3) dietary and lifestyle habits before and during quarantine.~The scientific community raises concerns about the health implications that will be caused due to the COVID-19 lockdown. The results of this study are expected to shed light into children and adolescents, as well as their parents', changes in dietary and lifestyle behaviours and feed the development of effective strategies to prevent the adoption of unhealthy lifestyle behaviours and weight gain in the event of a second wave of COVID-19 in the coming months.
The aim of this study was to examine potential changes in children' and adolescents' dietary and lifestyle (physical activity, sedentary behaviour and sleep) habits during the quarantine that was implemented in Greece due to COVID-19. An online survey in a random sample of families across Greece was conducted. Parents self-reported their children's and their own dietary and lifestyle habits, as well as information about their sociodemographic status.