One Year of COVID-19 in Spain, Longitudinal Study on Mental and Physical Health.

The objective of this longitudinal study carried out with the same participants, with two repeated measurements, the first taken in March 2020 (M1) and the second measurement in March 2021 (M2), is to investigate the impact of the COVID-19 pandemic throughout one year on the levels of Affect, Psychological Well-being, Depression and Mental and Physical Health, as well as to learn about the evolution of those levels from M1 to M2. Comparison of the mean scores of the variables analyzed between the two measurements (M1 and M2) show significant differences in the following scales: Positive Affect (PANAS), with lower scores at M2; Total Depression (BDI-II) and the two Cognitive-Affective and Somatic-Motivational factors, with higher scores at M2; the physical and mental health scales (SF-36) of Physical Functioning, Role Physical, Vitality, Social Functioning, Role Emotional, and Mental Health, and the two Physical and Mental Health components, with lower scores at M2 in all of them; and the Purpose in Life (PWB) scale, with a lower score at M2. We can conclude that the one-year pandemic situation has affected all the variables analyzed in this work, showing a decrease in positive affect, an increase in the score of the depression inventory, worse physical and mental health, and less psychological well-being. Throughout the pandemic year, the results show that age has a moderation effect on the Somatic-Motivational factor and on the Total Depression, Physical Functioning, Vitality, and Role Emotional scales. Gender shows no moderation effect on any of the four variables analyzed.