Stress, anxiety, and depression trajectories during the "first wave" of the COVID-19 pandemic: what drives resilient, adaptive and maladaptive responses in the Portuguese population?

"Conflict of interest The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. The author(s) declared that they were an editorial board member of Frontiers, at the time of submission. This had no impact on the peer review process and the final decision."

"The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work has been funded by the National funds, through the Foundation for Science and Technology (FCT) - project UIDB/50026/2020, UIDP/50026/2020, and 110_596697345 (Research 4 COVID); and by the projects NORTE-01-0145-FEDER-000013 and NORTE-01-0145-FEDER-000023, supported by Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (FEDER). This publication has also been funded by the FLAD Mental Health Award 2021. The funding sources had no involvement in study design, collection, analysis and interpretation of data, writing, or the decision to submit the article for publication."