The present study aimed to determine the predictive value of Pender's health promotion model (HPM) structures in performing COVID-19 self-care behaviors in the general population. The results of this study showed that the Pender's HPM has a reasonable fit for predicting COVID-19 self-care behavior in the Iranian population. According to direct path analysis to COVID-19 self-care behavior, the variables of perceived self-efficacy, interpersonal effects, positive emotions, and perceived benefits were able to significantly predict the self-care behaviors. Moreover, the bootstrapping test results in the indirect path analysis demonstrated that the variables of perceived self-efficacy, perceived social support, and perceived barriers and benefits through the mediator variable of commitment to action are able to significantly predict COVID-19 self-care behavior.
Our results revealed that the perceived self-efficacy was both directly and indirectly able to predict the COVID-19 self-care behavior through commitment to action. It should be noted that 86% of studies on health-promoting model supported the importance of self-efficacy as a determinant of health-promoting behavior [20]. The self-efficacy has been emphasized as a significant precondition for self-management to improve health-promoting behaviors [21].
In this regard, a study in China stated that perceived self-efficacy was significantly higher in the group exploiting social media than in others [22]. Thus, social media can be said to be a useful tool for transferring health messages, and contributing to COVID-19 self-care behaviors. In other words, understanding the importance of self-care behaviors and knowing the consequences of non-adherence increases individual self-efficacy and reinforces a positive belief in COVID-19 self-care behaviors, leading to the adoption of preventive behaviors [23]. Other studies found that perceived self-efficacy influences a person's ability to perform a particular level of action, and commitment to action is affected by variables such as perceived self-efficacy [13]. Perception of abilities and skills in a particular area leads a person to a behavior in which one is superior. A sense of efficiency, effectiveness, and skill in performing an action strengthens one's commitment to that action compared to when one has no self-confidence. Therefore, it can be said that the perceived self-efficacy enhances commitment to action, and the commitment to action reinforces COVID-19 self-care behavior.
Based on the results, interpersonal communication is directly able to significantly explain self-care against COVID-19. In other words, people with effective interpersonal communication skills have a high level of self-care during COVID-19 outbreak. The ability to communicate effectively is one of the ten skills emphasized by the WHO and a prerequisite for mental health in individual and social life. This skill is important in human life as some experts have stated that the communication process is the basis of all human development, personal injury and human progress [24]. Hence, it can be said that such a skill can lead a person to take care of him/her and others, while developing mental health.
The results also showed that perceived social support could not directly predict COVID-19 self-care behavior but indirectly significantly predicted COVID-19 self-care behavior through commitment to action. According to the results of several studies on the effect of social and family support in reducing stress levels and improving skills in controlling the prevalence of diseases such as influenza [25], Ebola (26), SARS [27] and COVID-19 (28 and 29), our findings also emphasized the role of social support and commitment to action in the individual as components promoting COVID-19 self-care behaviors. In other words, a central function of commitment to action in COVID-19 self-care behavior is an acceptable approach to health promotion in which people in the community are empowered to take responsibility for their own health and the health of others and to adopt a healthy lifestyle.
Based on the results, positive emotion is directly able to significantly predict COVID-19 self-care behavior. Positive emotion has been shown to be a key component of emotion control skills, and plays an important role in people's adaptation to stressful life events [30]. People who have experienced negative life events but focus on the positive aspects of life report greater life satisfaction [31]. Therefore, positive emotions and high mood can enhance people's hope and quality of life. In such cases, positive emotions will lead to the adoption of effective control strategies and self-care behaviors of COVID-19. The results on the role of negative emotion in COVID-19 self-care are not significant because this component is unable to directly or indirectly predict COVID-19 self-care behavior.
Another finding of the present study is the absence of directly predicting self-care behaviors by the variable of perceived barriers. On the other hand, the results of this study also revealed that commitment to action is indirectly able to predict COVID-19 self-care behavior. Most studies testing the health promotion model have expressed empirical support for the importance of barriers as a determinant of health-promoting behavior [32]. In such cases, perceived barriers can be imaginatively related to the inaccessibility, inappropriateness, costliness, dissatisfaction, difficulty, or time-consuming nature of a particular action, which acts as a barrier to behavior [13].
Contrary to previous findings, this study found no inverse correlation between perceived barriers and self-care behaviors. In other words, barriers to self-care practices and behaviors (such as lack of financial resources, apathy, and shortage of time) do not prevent self-care behaviors. Such a result is not unexpected given the serious and deadly nature of COVID-19, and it seems that when it comes to one's life, people endure deficiencies and barriers to save their lives. On the other hand, the mediating role of commitment to action in the relationship between perceived barriers and self-care behaviors shows that although barriers alone cannot affect individuals' self-care and preventive behaviors at COVID-19 risk, they can influence self-care behaviors of people by reducing their motivation and commitment. In other words, barriers have no effect on the onset of COVID-19 self-care behaviors but can reduce individuals' motivation to pursue self-care behaviors by affecting their commitment.
Based on the results of the present study, the perceived benefits of individuals can directly explain self-care behavior and are indirectly able to predict COVID-19 self-care behavior through commitment to action. This result is consistent with other findings in this field [33].
People's perception of the positive outcomes and benefits of self-care can increase people's motivation to increase such behaviors. Perceived benefits refer to a person's beliefs consistent with the usefulness of health-promoting behaviors in preventing a health threat or disease. According to the definition of this structure, an individual chooses the behavior that involves the most benefit and is accessible to society [13]. Studies show that if perceived barriers outweigh the benefits of prediction, behavior is less likely to occur. In other words, the individual's action directs the self-care behavior through the balance and imbalance between perceived positive and negative forces [33]. Given the widespread and deadly consequences of COVID-19, mass media and cyber advertising and the WHO emphasize the positive aspects and benefits of health-promoting behaviors. In addition, politicians and statesmen in different societies emphasize the benefits of self-care behaviors due to their economic consequences and downplay the role of barriers. These increase people's knowledge of perceived benefits among individuals and increase commitment to self-care practices and behaviors.
Finally, it is recommended that the dimensions with the strongest predictive value should be integrated to design and implement a comprehensive model for health planning and appropriate interventions for COVID-19 self-care behavior. The limitations of the present study are the self-report nature and Internet completion of the designed questionnaire, which reduce the reliability of the data. To reduce these problems, an attempt was made to consider an option when designing an online questionnaire so that a user could complete the online form only once with an ID. In addition, the online form was tried to be sent through various communication channels to provide the ability to respond with smartphones as well as the operating system. However, one of the major problems with online questionnaires is the need for the Internet to complete the relevant form, which eliminates the chances of people without these facilities participating in such studies.