Immune Fitness and the Psychosocial and Health Consequences of the COVID-19 Pandemic Lockdown in The Netherlands: Methodology and Design of the CLOFIT Study

Pantea Kiani; Agnese Merlo; Hama M Saeed; Sarah Benson; Gillian Bruce; Rosalie Hoorn; Aletta D Kraneveld; Aurora J A E van de Loo; Noortje R Severeijns; Annabel S M Sips; Andrew Scholey; Johan Garssen; Joris C Verster

doi:10.3390/ejihpe11010016

Immune Fitness and the Psychosocial and Health Consequences of the COVID-19 Pandemic Lockdown in The Netherlands: Methodology and Design of the CLOFIT Study

Eur J Investig Health Psychol Educ. 2021 Feb 20;11(1):199-218. doi: 10.3390/ejihpe11010016.

Authors

Affiliations

¹ Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, 3584CG Utrecht, The Netherlands.
² Centre for Human Psychopharmacology, Swinburne University, Melbourne, VIC 3122, Australia.
³ Division of Psychology and Social Work, School of Education and Social Sciences, University of the West of Scotland, Paisley PA1 2BE, UK.
⁴ Clinical Psychology, Faculty of Behavioural and Movement Sciences, Vrije Universiteit Amsterdam, 1081BT Amsterdam, The Netherlands.
⁵ Global Centre of Excellence Immunology, Nutricia Danone Research, 3584CT Utrecht, The Netherlands.

Abstract

This article provides an overview of the design and methodology of the "Corona lockdown: how fit are you?" (CLOFIT) study, including the questionnaires and scales that were included in the online survey. The aim of the CLOFIT study was to investigate the psychosocial and health consequences of the coronavirus disease 2019 (COVID-19) pandemic in the Netherlands. The survey was conducted among the Dutch population to collect data on immune fitness and the psychological and health consequences of the 2019 coronavirus disease (COVID-19) pandemic lockdown in the Netherlands. The CLOFIT dataset contains measures from N = 1910 participants and is broadly representative of the Dutch general population. The dataset represents both sexes, a range of ages including the elderly, different education levels, and ethnic backgrounds. The cohort also includes people with a diverse health status and range of medication use.

Keywords: COVID-19; alcohol consumption; immune fitness; lockdown; mood; pain.