Barefoot social workers are the main workforce engaged in child welfare services in grassroots communities in China, and they play an essential role in ensuring child wellbeing[1]. The Ministry of Civil Affairs of China has been scaling up the child protection model by recruiting barefoot social workers since 2010[2], and the number of barefoot social workers has reached over 0.67 million in 2022[3]. Barefoot social workers often take on multiple tasks, including identifying and reporting children with adverse childhood experiences, helping children in need to seek social services, and protecting children's physical and mental health[4, 5]. In addition, they also take on various roles, such as national policy implementers, vulnerable child protectors, and family prolocutors[3]. The work of barefoot social workers is complex, stressful, and emotionally demanding[6], which may lead to multiple adverse outcomes, such as high job burnout, low work engagement, and low life satisfaction[7, 8].
Among the multiple negative outcomes related to work stress, life satisfaction is one of the most critical but less reported issues in barefoot social workers. As an important part of subjective well-being, life satisfaction is the overall evaluation of an individual's feelings and attitudes toward life at a specific time[9, 10]. Studies have shown that compared with social workers in professional agencies, barefoot social workers experience lower life satisfaction because of lower wages and higher work stress[1, 7, 11]. Low life satisfaction not only negatively affects bare social workers' physical and mental health but also leads to poor work performance, which may directly affect the health and wellbeing of children[1, 10]. Identifying the upstream triggering factors of low life satisfaction among barefoot social workers is a critical initial step in designing effective and targeted interventions to improve their life satisfaction.
Increasing evidence has identified the critical role of mental health literacy in promoting subjective wellbeing and life satisfaction among various populations[12, 13]. Mental health literacy refers to the knowledge and beliefs that help people identify, manage, and prevent mental diseases[14]. It includes the ability to correctly identify different mental disorders, the understanding of the causes, risks, and treatment of mental diseases, and attitudes toward seeking professional assistance[15]. Studies among teachers, practicing counselors, and health management specialists have consistently demonstrated a significant positive correlation between mental health literacy and life satisfaction[16]. Furthermore, previous studies have reported that children in adversity have high rates of mental health problems, especially anxiety, depression, and non-suicidal self-injuries[17]. Barefoot social workers with better mental health literacy are more able to identify children's mental problems and provide timely interventions. However, the current state of mental health literacy in China is not encouraging, with only 12% of the national population having adequate mental health literacy in 2023[18]. People with low mental health literacy are more susceptible to mental illness, such as anxiety, depression, and suicidal ideation. They are less likely to seek professional help due to the high social stigma of mental illness, which may lead to decreased life satisfaction[19]. Therefore, low mental health literacy may be a modifiable risk factor for low life satisfaction among barefoot social workers.
Although the association between mental health literacy and life satisfaction is well-established, the underlying mechanism of such an association remains unclear. Two work-related factors—job burnout and work engagement, may play an essential role in connecting mental health literacy and life satisfaction. Job burnout refers to the state of exhaustion caused by work pressure and load, which includes emotional exhaustion, depersonalization, and low personal accomplishment[20]. Numerous studies have documented the negative effects of job burnout in terms of physical, psychological, and occupational consequences, leading to decreased life satisfaction, especially among social workers in stressful work environments[21]. Furthermore, Xu et al found that burnout mediated the association between job stress and life satisfaction among university faculty members[22]. Work engagement refers to a positive state of high energy combined with deep dedication and a strong focus on work[23]. A plethora of studies have shown that work engagement is positively associated with life satisfaction in various populations[24]. In addition, a randomized controlled trial found that mental health literacy positively predicted work engagement[25]. Therefore, work engagement may mediate the association between mental health literacy and life satisfaction. However, no research has explored the mediation effect of job burnout and work engagement in the relationship between mental health literacy and life satisfaction among barefoot social workers.
To fill in the research gap, we conducted the current study to test a serial mediation model of job burnout and work engagement in the relationship between mental health literacy and life satisfaction based on the job demands-resources (JD-R) theory. According to the JD-R theory, job resources are resources that stimulate personal growth, learning, and development, which instigate a motivational process through motivation. On the other hand, job demands trigger a health impairment process through strain, leading to adverse outcomes, such as low life satisfaction[26]. Mental health literacy represents workers' ability to identify mental health knowledge and cope with psychological problems, thereby serving as a job resource. Job burnout serves as one of the most important and widely concerned strain factors to link job demands and life outcomes. When job demands increase, job burnout will rise, and the levels of performance and work engagement will decrease, leading to lower life satisfaction[27, 28].
Based on the JD-R theory, we proposed the following main hypotheses:
(H1) There were significant correlations among mental health literacy, job burnout, work engagement, and life satisfaction.
(H2) Job burnout mediated the relationship between mental health literacy and life satisfaction.
(H3) Work engagement mediated the relationship between mental health literacy and life satisfaction.
(H4) Job burnout and work engagement serially mediated the relationship between mental health literacy and life satisfaction.