Longitudinal development of depression and anxiety during COVID-19 pandemic in Germany: Findings from a population-based probability sample survey

The stress response to the COVID-19 pandemic might differ between early and later stages. Longitudinal data on the development of population mental health during COVID-19 pandemic is scarce. We have investigated mental health trajectories and predictors for change in a probability sample of the general population in Germany at the beginning and after 6 months of the pandemic. We conducted a longitudinal survey in a population-based probability sample of German adults. The current study analyzed data from a first assessment in May 2020 (T1;N = 1,412) and a second in November 2020 (T2;N = 743). Mental health was assessed in terms of anxiety and depression using the Patient Health Questionnaire-4 (PHQ-4). Mental health outcomes at T1 were compared with PHQ-4 norm data. Trajectories over time were investigated based on outcome classifications of PHQ-4 scores. Predictors of mental health outcomes and change were identified using multiple regression analysis. In spring 2020, participants showed significantly higher PHQ-4 scores as compared to the norm data, however, overall anxiety and depression remained low also 6 months later. 6.6% of respondents showed a mental health deterioration in autumn 2020, entering subclinical and clinical ranges, outweighing the proportion of people with improved outcomes. Sociodemographic variables associated with mental distress at T1 were mainly not predictive for change at T2. Even under prolonged pandemic-related stress, mental health remained mainly stable in the general population. Further development of the considerable subgroup experiencing deterioration of depression and anxiety should be monitored, in order to tailor prevention and intervention efforts.

Eating behaviour and symptom trajectories in patients with a history of binge eating disorder during COVID-19 pandemic.

OBJECTIVE: A history of an eating disorder (ED) might constitute a risk for symptom deterioration and relapse during COVID-19 pandemic. This longitudinal study investigates ED symptom trajectories until the first COVID-19 lockdown in Spring 2020 in patients with a history of binge eating disorder (BED). METHOD: Participants of the randomised-controlled BED treatment trial IMPULS participated in a re-assessment directly after the first COVID-19 lockdown in Germany. We used expert-rated clinical interviews and self-report to investigate binge eating (BE) frequency, ED and general psychopathology, distress, emotion regulation and sense of coherence. Symptom trajectories were analysed for baseline when entering the trial, end of trial participation and the time point directly after lockdown. BE frequency was assessed on a recall basis for 4 weeks directly before lockdown and 4 weeks during lockdown. RESULTS: BE frequency, general ED pathology and depressive symptoms markedly increased after as compared to before the COVID-19 outbreak. Individuals scoring high on reappraisal as emotion regulation strategy and sense of coherence scored lower on general ED pathology. CONCLUSION: Individuals with a history of an ED are at risk for symptom deterioration and relapse during the pandemic. Intervention and service dissemination strategies are needed to support vulnerable groups throughout the pandemic.