*Limitations of the Study*

This study provides very novel information about a series of indicators of mental health in a student population that had been poorly studied to date in a pandemic situation, thereby updating the knowledge on this topic to contribute to future research lines that address this problem. However, this study presents some limitations that must be pointed out. One of such limitations is that, despite the large sample size, most of the population who responded to the questionnaire were Spanish, thus the data cannot be extrapolated to the international scope. Similarly, participation in this study was voluntary, which can pose a sample selection bias.

Further research in this line is required, with larger populations and greater representation of international origin, in order to extrapolate the results. Moreover, randomized sampling must be applied to avoid selection bias.

#### **5. Conclusions**

In sum, the final-year nursing students who participated in this study suffered negative psychological consequences during the pandemic. These participants showed a high level of psychological discomfort. The differences in the latter were related to sociodemographic variables such as age, sex, university of origin, and feeling ready for the world of work.

The COVID-19 pandemic has caused serious repercussions. Therefore, in these periods of health crisis, it is necessary to develop research lines focused on studying the phenomenon and its impact with other variables, in order to know its effect on future healthcare professionals. This could help to prevent and address the negative personal aspects that can affect students' professional integration.

**Author Contributions:** Conceptualization, J.S.-P. and F.E.-L.; methodology, E.M.-S.; software, F.-J.G.- V.; validation, V.S.-N.; M.-d.-l.-Á.M.-G. and J.S.-P.; formal analysis, F.E.-L.; investigation, E.M.-S.; resources, F.-J.G.-V.; data curation, V.S.-N.; writing—original draft preparation, M.-d.-l.-Á.M.-G.; writing—review and editing, M.-d.-l.-Á.M.-G.; visualization, F.E.-L.; supervision, E.M.-S.; project administration, F.-J.G.-V.; funding acquisition, V.S.-N. All authors have read and agreed to the published version of the manuscript.

**Funding:** University of Huelva.

**Institutional Review Board Statement:** The formal aspects of the declaration of Helsinki were considered at all times. The study was approved by the Research Ethics Committee of Huelva (code: MG-COV-2021-02; internal code: 0742-N-21).

**Informed Consent Statement:** Informed consent was obtained from all subjects involved in the study.

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