**5. Conclusions**

Although there is reason to expect that mental health will increase with the successful containment of the COVID-19 pandemic [41], the spreading course of the coronavirus seems to be coming and going in waves. The populations' mental health can, thus, be assumed to be equally dynamic. The latest numbers from the U.S., for example, demonstrate that, related to the pandemic, 40% of respondents showed signs of anxiety, depression, or increased use of substances with 25% even reporting symptoms of trauma-related and stressor-related disorders [42]. By now, COVID-19 case numbers worldwide have gone up again and measures are being intensified globally. Therefore, it is of vital importance to continuously monitor the mental health of the general public during this pandemic and its aftermath to identify associated protective factors and to carefully screen for IPV and its risk factors such as stress, sleep problems, and anger [43].

**Supplementary Materials:** The following are available online at http://www.mdpi.com/2077-0383/9/11/3708/s1, Table S1: Mann-Whitney-U-tests for group differences between participants with and without pre-existing physical health conditions, Table S2: Means and standard deviations for PHQ-4, WHO-5, SOC-L9 and PHQ stress module for participants with and without pre-existing physical health conditions., Table S3: Answers for item "coping" (percentage) for participants with and without pre-existing physical health conditions.

**Author Contributions:** Conceptualization, S.J., J.K. and T.H.C.K.; methodology, S.J., J.K. and T.H.C.K.; validation, S.J., J.K. and T.H.C.K.; formal analysis, S.J. and J.K.; investigation, S.J.; resources, S.J. and T.H.C.K.; data curation, S.J. and J.K.; writing—original draft preparation, S.J.; writing—review and editing, S.J., J.K. and T.H.C.K.; visualization, S.J. and J.K.; supervision, T.H.C.K.; project administration, S.J. and T.H.C.K. All authors have contributed to the scientific work and have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The authors declare no conflict of interest.
