Les conséquences psychologiques du COVID long. Effet des incertitudes, des stratégies de coping, du soutien social et de la qualité de vie sur la dépression

Objectives

Many people were infected by COVID-19 and for a minority of them, symptoms persisted beyond twenty days. These symptoms are multi-systemic, fluctuating, and impact the quality of life. Long COVID was first defined by patients themselves in the spring of 2020 to describe their recovery problems. Specifically, long COVID is defined as “a constellation of physical and mental symptoms which can persist or emerge afterwards, generating a multi-systemic and disabling syndrome, which varies from patient to patient and fluctuates over time”. The persistence of COVID symptoms, the decrease in the quality of life, the uncertainly about the future sometimes accompanied by a low level of social support perceived in the medical and personal entourage may have triggered the occurrence of a depressive disorder in patients with long COVID. The objective of this research was to study the effect of long COVID symptoms, of uncertainty and the impairment of quality of life on the development of depressive symptoms, while identifying the impact of moderating variables such as coping strategies and social support.

Materials and methods

Two hundred and fourteen participants with long COVID (aged 18–68, M = 44, SD = 11), including 93 % females (n = 200) and 7% males (n = 14), participated in this cross-sectional quantitative study between the months of April and June 2022. They described their symptoms and responded to five scales: the Evaluation of Intolerance of Uncertainty Scale (EII), the Coping Strategies Checklist (WCC), the Medical Outcome Study Short Form 36-item health survey (MOS SF-36), the Perceived Social Support Questionnaire (QSSP), and the Hospital Anxiety and Depression Scale (HADS).

Results

91% of the participants reported symptoms of fatigue (n = 171), 52% a loss of concentration (n = 111), 51% pain (n = 110), 49 % trouble sleeping (n = 104), and 41% memory problems (n = 88). Compared with the general population, they presented a poorer quality of life, as well as high scores for anxiety, depression, and intolerance of uncertainty. Scores on coping strategies were also higher than the norms for the general population, and scores on satisfaction with social support were generally good. It was also found that the variables of intolerance of uncertainty, quality of life, and depression all correlated with each other. Furthermore, the regression analysis revealed predictors of depression. The areas of quality of life and emotional well-being (β = –0.41, t(199) = –6.23, P < 0.01) and fatigue/energy (β = –0.16, t(199) = –2.83, P < 0.01) were negative predictors of depression, as was the problem-focused coping score (β = –0.14, t(199) = –2.84, P < 0.05). Symptoms of the disorder related to concentration difficulties (β = 0.27, t(199) = 5.16, P < 0.01) and those impacting projects (β = 0.18, t(199) = 3.31, P < 0.01) were positive predictors of depression. The second finding of this study is that people treated specifically for their long COVID had significantly lower scores for anxiety and intolerance of uncertainty despite lower scores for certain dimensions of quality of life. The individuals who took part in our study also developed more problem-based coping strategies and reported more availability of and satisfaction with social support. Lastly, in terms of quality of life, the treated population expressed better mental health.

Conclusions

The study showed that, in addition to the effects of long COVID symptoms, quality of life, and coping strategies on the onset of symptoms of depression, the specific treatment of patients with long COVID seemed to constitute in itself a protective factor against depression and anxiety. It therefore would seem essential that any patient suffering from long COVID should receive multidisciplinary care specific to this pathology.