Notes: unless otherwise noted, values represent No. (%), only participants with non-missing values were included in the calculation of the percentages.

Shading shows data from Turkey which were not used in the logistic regression. The amount of variability across strata was estimated using Cramér's V(φ_c) for categorical variables and η² for continuous variables.

BE, Belgium; DE, Germany; ES, Spain; HADS, Hospital Anxiety and Depression Scale; IT, Italy; NL, Netherlands; SE, Sweden; TR, Turkey; CES-D, Center for Epidemiologic Studies-Depression Scale; BMI, body mass index; ‘–’ indicates data was not collected.