The present study aimed to assess the relationship between perceived stress and stress coping strategies among nurses of COVID-19 patients at Ganjavian Hospital, Dezful, Iran. The findings revealed a high intensity of perceived stress among nurses, with a mean of 33.6. Along the same lines, Fallahi-Khoshkenab investigated nurses' mental health and psychological interventions and reported a considerably high incidence of negative mental effects such as post-traumatic stress disorder, anxiety, depression, fear, and sleep disorders, particularly among nurses working in COVID-19 wards (
15). Vagni et al. revealed that among healthcare workers, the highest stress scores belonged to physicians and nurses (
16). Other studies have also shown that healthcare workers experience various degrees of stress, anxiety, and depression, with higher intensities among nurses and laboratory staff compared to physicians (
17-
19). In contrast, some studies have referred to mild or weak levels of stress among nurses (
20,
21). Another research conducted in Iran prior to the COVID-19 pandemic found nurses' stress levels to be moderate and high. These results may be justified by the unknown nature of the virus, high transmission rate (
22), high death rate, loss of self-confidence due to the shortage of personal protective equipment (
4,
19), continuous work shifts, and fear of being infected and unable to see one's family members. Furthermore, evidence has indicated that demographic characteristics can affect perceived stress as well as the selection of coping strategies. For example, individuals who live alone or have weaker support systems had higher levels of perceived stress (
12).
The present study findings revealed a significant correlation between perceived stress and age among nurses of COVID-19 patients. Accordingly, the level of perceived stress was higher in older participants. Consistently, Hou et al. stated that the incidence of stress, depression, and anxiety was higher among nurses aged above 30 years (
12). Conversely, Zhang et al. demonstrated that stress symptoms and job burnout were more evident among younger nurses. They believed that older nurses were more prepared to efficiently face stressful situations and more willing to take avoidance strategies against negative thoughts and emotions (
14). the results of the present study can be attributed to the fact that older nurses are more aware of the risks associated with pandemics and feel more responsible towards patients, which causes them to suffer from higher levels of stress.
The current study results showed a significant relationship between perceived stress and job tenure among nurses of COVID-19 patients. Accordingly, the intensity of perceived stress was higher among participants with greater work experience, which was in agreement with the findings of the research performed by Asfour et al. (
18). Letvak and Buck found job tenure to be negatively associated with stress level and its symptoms among nurses. In other words, greater work experience resulted in a decrease in stressors (
23). Mortaghi Ghasemi et al., however, found no significant relationship between job tenure and stress (
24). Generally, individuals with longer job tenure benefit from more personal and occupational experiences and competencies. Therefore, they are able to prevent the penetration of harms, are more committed to taking care of patients with COVID-19, and are not affected by the consequences. Hence, they may suffer from lower stress levels.
The present study discovered no significant relationship between perceived stress and nurses' gender. In contrast, Lai et al. (as cited in Rossi et al.) conducted a study on Chinese nurses and came to the conclusion that female nurses showed more stress symptoms when they were in direct contact with COVID-19 patients (
25). Other studies have also indicated that females were more stressed while facing patients in comparison with males (
26-
28). Up to now, numerous studies have demonstrated that the majority of nurses are female. Creating a balance between life and work is a source of stress, because high workload and being distant from social and family lives can cause women to experience depression and dissatisfaction (
29). Nonetheless, Khaghanizadeh showed a higher level of occupational stress among males, which might be associated with higher expectations on the part of family, society, and the workplace. This could, in turn, increase men’s workload, such that they are not able to respond properly to these expectations (
29).
The current study results revealed no significant relationship between perceived stress and education level, which was in line with the results obtained by Tavakoli Zadeh et al. (
30). On the contrary, Carvello et al. performed research on stress among nurses and indicated that those participants with higher education levels had lower stress levels. They maintained that having a Master's degree could be a positive factor in the nursing profession, because it could increase individuals' self-esteem, thereby helping them seek new projects and present a better performance and more safety while facing stressors (
31).
Evidence demonstrates that thinking styles can affect the selection of coping strategies. They are also associated with mental health, negatively among individuals with emotion-focused coping and positively among those with problem-focused coping. In other words, people with a better mental health status tend to make use of problem-focused coping strategies (
32).
The present results showed no significant relationship between coping strategies and demographic and underlying features. Nevertheless, the distancing strategy was detected less among nurses with higher education levels. In fact, distancing is the first approach against stress, but it is less utilized by educated nurses due to their higher skills in stress control (
33). Additionally, self-controlling was associated with gender and history of COVID-19 infection. Moreover, the escape-avoidance strategy was detected less among older nurses and those with longer job tenures, but this strategy was used more by male nurses and those with a history of COVID-19 infection. Nurses with greater work experience, however, tended to use positive reappraisal and planful problem-solving. Generally, wishful thoughts involve behavioral attempts to avoid or escape stressful situations, similar to wishing for a miracle, excessive sleeping, eating, drinking, smoking, and drug abuse, which equal escaping from reality (
34).
In the present study, females were more willing to receive social support and accept responsibility. Acceptance of responsibility was also observed among nurses with a previous history of COVID-19 infection. Moreover, the nurses with higher levels of perceived stress made more use of confrontative, distancing, self-controlling, seeking social support, accepting responsibility, planful problem-solving, and positive reappraisal strategies. Conversely, Jafari et al. found no significant relationship between occupational stress and coping strategies. They believed that personality features were more effective in the selection of efficient coping strategies (
33). Several studies have indicated that seeking social support from peers, which has been applied as a stress coping strategy by numerous nurses, can provide them with emotional support and reduce their emotional pressures (
35). On the other hand, accepting responsibility is among the basic skills for all people, which makes them committed to fulfilling all their duties. In other words, responsibility refers to the commitment towards one's duties as well as their outcomes (
36). Thus, perceived stress can enhance responsibility acceptance.
The current findings revealed a significant correlation between perceived stress and planful problem-solving. Other studies have also shown that individuals with higher problem-solving capabilities are less exposed to stress (
34). Furthermore, when encountering problems, some people make genuine attempts to evaluate the situation correctly and properly and cope with it through problem-solving, positive thinking, and appropriate use of support systems. Individuals who are not able to solve problems or tolerate stress may make use of inefficient or even harmful strategies, which can eventually lead to the incidence of more stresses.
5.1. Limitations
One limitation of the current study was ’the limited cooperation of nurses because of their heavy workload as well as their lack of perception of a nurse's role in finding and solving problems. Another limitation of this study is that it was not possible to remove confounding variables
5.2. Conclusions
This study found that nurses faced a large number of stressors during the COVID-19 pandemic. Additionally, the selection of stress coping strategies was somewhat related to factors such as age, gender, and education level. Although many of these factors cannot be changed, nurses' perceived stress can be reduced by training them in effective coping strategies.