Introduction

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) that causes COVID-19 has become a global public health threat (^{Nguyen et al., 2020}). Most of the world’s countries are continuing to fight to counteract the repercussions on the population. Although more than six months have passed since the start of the pandemic, some characteristics and behaviors of the virus remain a mystery (^{Arias-Reyes et al., 2020}).

In this scenario, health workers constitute the first line of battle and are therefore at the greatest risk of becoming infected. This is borne out by studies in China and Italy, where approximately 10% to 20% of reported cases correspond to health professionals (^{Algado-Sellés et al., 2020}). In addition to this, other reports reveal risk factors in this population, such as the lack of personal protective equipment (PPE), constant exposure to infected patients, work overload, pre-existing medical conditions, and poor infection control (^{Mhango, Dzobo, Chitungo, & Dzinamarira, 2020}). This obviously affects medical services and the behavior of healthcare personnel, leading them to experience fear and uncertainty, which translates into concern about the consequences of the virus (^{Chang, 2020}).

As for the effects that concern over COVID-19 might be causing, there are a number of hypotheses. For example, the study by ^{Spoorthy, Pratapa, & Mahant (2020)} reports mental health problems among health personnel, specifically a lack of self-efficacy, associated with anxiety and depression symptoms. Along these same lines, ^{Lai et al. (2020)} corroborate that health workers in several regions of China have experienced depression, anxiety, insomnia, and anguish, particularly female nurses from Wuhan, and frontline health workers directly involved in the diagnosis, treatment or provision of care to patients with suspected or confirmed COVID-19. Concern about COVID-19 appears to mainly cause anxiety and depression in this population (^{Shaukat, Ali, & Razzak, 2020}) since, in response to the probability of being infected by the virus and suffering consequences in their own health or in that of a close relative, the individual experiences an emotional reaction (anxiety) which prepares the body to cope with stressful situations, such as caring for patients infected with COVID-19 (^{Buitrago Ramírez, Ciurana Misol, Fernández Alonso, & Tizón, 2021}). Moreover, prolonged exposure to this concern leads to the emergence of depressive symptoms such as sadness, mood alterations, lack of sleep, tiredness, and feelings of uselessness (^{Dosil Santamaría, Ozamiz-Etxebarria, Redondo Rodríguez, Jaureguizar Alboniga-Mayor, & Picaza Gorrotxategi, 2021}). This situation has been observed in certain contexts such as Peru, as shown by a review noting the consequences on health personnel (^{Huarcaya-Victoria, 2020}).

Other no less important aspects would be psychological discomfort and professional self-efficacy. Regarding the former, a study in Cameroon found a prevalence of psychological distress associated with fear of contagion (^{Nguépy Keubo et al., 2021}). This situation could be due to work overload, the perceived or actual mismatch between the demand for care and the available means, and repeated exposure to infected patients (^{Lefèvre et al., 2021}; ^{Vignaud & Prieto, 2020}), which in some contexts is interpreted as psychological distress and suffering (^{Ornell, Chwartzmann Halpern, Paim Kessler, & Narvaez, 2020}). Regarding the latter, studies reveal that a shortcoming in this capacity is associated with greater stress, anxiety, and depression (^{Spoorthy et al., 2020}). Likewise, another study in Iran recommended developing professional self-efficacy to promote preventive behaviors in the face of the possible effects of COVID-19 (^{Bashirian et al., 2020}), regarding it as a personal strength in health workers (^{Cheung et al., 2020}) particularly in nursing personnel, where there is also an urgent need to develop resilience (^{Hu & Bentler, 1999}).

On the basis of these indicators, the pandemic can be said to have increased the challenge of caring for the mental health of health workers (^{Maben & Bridges, 2020}) currently considered to be a risk group. Although it is unlikely that a disease with the characteristics of the current SARS-CoV-2 will be repeated, the repercussions it has caused have obviously revealed the need to recognize the impact external factors have on the mental health of these workers. Moreover, given the magnitude of the problem, since all health workers in the world have been exposed to the same stressor at the same time, the impact of sustained, severe stressors was clearly visible. Accordingly, studies to evaluate mental health in this population are extremely useful for developing public health strategies to prevent and control the repercussions caused by the pandemic in Latin America (^{Lozano-Vargas, 2020}).

At the beginning of the pandemic, ignorance about the virus was one of the main causes of infection in health workers. However, at present, despite all the scientific knowledge generated, the infection and mortality rate continues to increase, which suggests that this situation continues to prevail because of external factors such as the shortage of PPE equipment, lack of training in infection control, long working hours, and a stressful environment (^{Arias-Reyes et al., 2020}).

In short, despite having generated a certain amount of discussion of the problem based on the findings of studies conducted both globally and locally, focusing attention on the repercussions on the mental health of health workers in the context of COVID-19, the authors of this study consider that the data are still limited (^{Nguyen et al., 2020}); instead, the purpose of this study is linked to the impetus shown by the World Health Organization and the International Council of Nurses, who expressed great concern over the fact that some countries are failing to track or report data related to infection by COVID-19 in healthcare workers (^{Arias-Reyes et al., 2020}).

For all these reasons, the purpose of this research is to determine the effect of concern about COVID-19 on professional self-efficacy, psychological discomfort, anxiety, and depression in a sample of Peruvian health professionals.

Method

Results

Table 1 shows the descriptive statistics of the variables under study. It is observed that the arithmetic mean of the work self-efficacy variable (M = 23.03; SD = 7.26) and of the concern about COVID-19 (M = 48.28; SD = 12.97) exceeds 50% of the range of values they can take. Asymmetry is positive in all variables except work self-efficacy. Moreover, kurtosis is below ± 2 values. In addition, reliability is reported by means of the omega coefficient that is higher than .70, indicating good internal correlation between the variables and in the analysis of explained variance (AEV), which is higher > .50.

Table 2 shows the factor loadings of the explanatory model, the same one that shows high goodness of fit: χ² (286) = 797.31, p<.001; CFI = .99; RMSEA = .06; SRMR = .07; WRMR = 1.25. This ensures that the estimates are appropriate and that there are no biases due to poor model specifications. Figure 1 shows that concern about COVID-19 has a greater effect on anxiety (β = .77) and depression (β = .71). In relation to the variable psychological discomfort, it is lower (β = .65), although it can still be considered a significant effect. Conversely, work self-efficacy (β = .12) shows the least effect.

Figure 1 Factor structure of the effect of concern about COVID-19 on work self-efficacy, psychological discomfort, depression and anxiety. The items are removed from the figure but considered in the estimation of the model. 

Discussion

Scientific literature suggests that the COVID-19 pandemic has affected the mental and physical health of large numbers of healthcare workers (^{Shaukat et al., 2020}). Based on the results, the main finding is having found that health workers’ concern about being infected with COVID-19 has had a significant impact on the increase in psychological discomfort, anxiety, and depression, although this effect has been greater for anxiety than for depression, and minimal for professional self-efficacy. This is partly consistent with ^{Yook, Kim, Suh, and Lee (2010)}, who point out that worry produced a significant variation in the prediction of depression and anxiety symptoms. The relationship between worry, discomfort, depression, and anxiety has been adequately documented in clinical and non-clinical population (^{Yook et al., 2010}).

Although anxiety and depression do not affect all health workers, they can decrease self-confidence, especially since they are suppposed to keep calm and reassure patients (^{Shanafelt, Ripp, & Trockel, 2020}). The degree of concern may increase and exacerbate anxiety and depressive and discomfort symptoms due to the absence of adequate protective measures (^{Roy et al., 2020}). This is particularly important in a country such as Peru, where strong healthcare infrastructure, and so recognizing the sources of concern about contagion will allow specific approaches to be developed to address these concerns and provide support for workers.

These results can be explained by the high levels of intolerance to uncertainty, which can create difficulties in dealing with stressful events, making it more likely for them to experience high levels of anxiety (^{Dar, Iqbal, & Mushtaq, 2017}). This is hardly surprising as it has been shown that intolerance of uncertainty is closely related to concern (^{Lin, Xie, Yan, & Yan, 2017}). However, it is necessary to recognize that COVID-19 is a disease with an extremely high fatality rate and a strong probability of infection in ordinary, everyday activities. In health personnel, this means that the mere fact of going to work is a risk factor.

The study has various strengths. First, health workers were evaluated, a group of whom were actively treating patients with COVID-19 in the Puno region, which despite being over 3,800 meters above sea level (^{Arias-Reyes et al., 2020}), is one of the most severely affected regions in Peru (^{Gestión, 2020}). Moreover, the study was conducted during the peak of the COVID-19 outbreak in Peru. At the same time, it also has limitations, such as the unequal distribution of the number of men and women, as well as the relatively small sample size, compared to the total population of health workers in Peru. Likewise, the workers who participated may not be representative of health workers from different regions of Peru. It is also possible that some workers did not have much time to participate in the study due to their professional obligations. Finally, the use of self-report measures is another limitation, since it may produce a social desirability bias in the participants.

In conclusion, the study evaluated health workers, a group of whom were treating patients with COVID-19 in the Puno region, one of the most severely affected in Peru and the global epicenter of the pandemic. Different variables associated with mental health were quantified, ranging from concern about infection from COVID-19, professional self-efficacy, and psychological to discomfort, depression, and anxiety. In this group of workers, concern about the spread of COVID-19 leads to psychological discomfort, anxiety and depression symptoms and lower professional self-efficacy.

These findings should serve to develop and implement interventions to reduce the impact of concern about the spread of COVID-19 on the mental well-being of healthcare workers. In addition, the fact of having highlighted the impact of sustained and severe stressors, regardless of whether they occur on a smaller or larger scale, should promote the installation of a monitoring and treatment system by the Peruvian health system. The findings presented here should therefore be considered by decision makers in occupational health, health service administration, and the community at large to promote and protect health workers in this and future public health crises.