Our study found that only 18.9% of participants who scored above the threshold for depressive or anxiety symptoms in the previous two weeks had used specialized MH services in the last three months. Using Andersen’s model of healthcare use, we found that certain predisposing, enabling, and need factors were associated with a higher prevalence of using specialized MH services among young people experiencing psychological distress in three cities in South America. As the MH treatment gap is a concerning issue worldwide [54], this study sheds light on critical elements that policymakers could consider to increase access to MH services among young people in the South American region.
Comparison with literature
According to our study, more than 80% of participants do not receive specialized MH care, although they might need it due to the severity of their symptoms of depression and anxiety. While we acknowledge that having symptoms does not necessarily mean participants have a formal diagnosis and, thus, not all of them are in need of specialized treatment, our findings are similar to the treatment gap reported for middle-income countries [7, 8] and Latin America (76% and 73%, respectively) for disorders such as depression and anxiety in the general population [6]. We found no difference in the use of specialized MH services across the three cities of our study, which could indicate that the scenario is similar throughout the region despite the contrasts in how health systems work in each country. On the health services side, the MH treatment gap is related to the lack of integration of MH into primary care, as well as the limited capacity of human resources to provide care for a high demand [5, 55]. On the part of young users, the stigma towards MH and the preference to solve problems on their own is a significant barrier to accessing services [24].
Among predisposing factors, young people with symptoms of anxiety and/or depression had a higher prevalence of using specialized MH services if their parents had also received MH treatment compared to their counterparts. The fact that their parents had received MH treatment could have created more awareness and decreased the stigma around MH care. This might suggest that those parents might have more resources to identify whether their children needed treatment and that young people might feel encouraged, supported and less judged for seeking support for their MH. A systematic review of parental factors associated with service use by young people with MH disorders found that 6 out of 10 studies showed that parental psychopathology was associated with young people’s use of specialized MH services (p < 0.001); however, family history of MH service use had no statistical evidence of association [56]. In addition, a study conducted with young people, parents, and teachers in Australia showed that parental history of MH could be an asset if families open up with young people about their lived experience of MH problems [57].
Among enabling factors, we identified that having a parent with education beyond secondary school favors using specialized MH services. This is consistent with previous research conducted with Dutch adolescents using education as a proxy for socioeconomic status [58]. Nevertheless, a study in Brazil with caregivers of school-aged young people found no association between education level and the use of formal or informal MH services [59]. Achieving a higher level of education may be linked to greater MH literacy, which may favor recognition of these problems [58] and more positive attitudes toward using health services [60]. However, as education level is highly associated with socioeconomic status, it might also show a tendency for less economically advantaged groups to experience more barriers to MH care, even within a sample recruited from deprived areas in Latin America.
Among need factors, people with greater severity of anxiety symptoms in the last two weeks and those who self-recognized ever experiencing anxiety symptoms had a higher prevalence of using specialized MH services compared to their counterparts. In addition, experiencing specific anxiety symptoms (e.g., feeling nervous, worried, fearful, or unrelaxed) for more than 7 days out of the last 14 days was linked to the use of specialized MH services. Experiencing some of these symptoms for a prolonged period and being aware of it could make young people conscious of how their anxiety affects their performance and productivity at work and school. Although we did not find studies focusing on the association between the severity of anxiety symptoms and the use of MH services in young people, a study with Canadian youths found that stress, used as a proxy for impairment, was a critical driver for MH service use [36]. A comparable association could also explain our findings, as young South American people reported seeking specialized MH services only when they felt they could not handle problems independently [61].
Concerning depression, our study did not find an association between the use of MH services and the severity of depression symptoms in the last two weeks or self-recognition of ever experiencing depressive symptoms. In line with our findings, a study using machine learning techniques to predict the use of MH services among adolescents could not propose a model based on depressive symptoms severity [62]. A systematic review of qualitative studies exploring barriers to seeking help among young people found that almost half of the included studies reported difficulty in identifying symptoms of mental illness as a potential barrier [63]. Nevertheless, the treatment gap for the group of young people with severe symptoms of depression is alarming. A qualitative study found that adolescents with depression tend to view their distress as a weakness of character and that accepting they have a MH problem such as depression could be viewed as a frightening experience because their normalcy is questioned [64]. In addition, the lack of access to treatment might also be explained by the debilitating effect of severe depression symptoms on day-to-day functioning and emphasizes the need for young people with severe depression symptoms to be supported to access MH services. Nevertheless, experiencing specific symptoms of depression (e.g., lack of interest, low self-esteem, and lack of concentration) for more than 7 days out of the last 14 days was linked to a greater use of specialized MH services. As with anxiety symptoms, it may be possible that these depressive symptoms are perceived as causing more impairment in daily life; however, it could also be that among depressive symptoms, these are easier to identify compared to others.
Furthermore, in our study, experiencing three or more SLEs was associated with a higher prevalence of using specialized MH services, consistent with findings from a cohort of Swedish young people [29]. It should be noted, however, that the SLEs explored in both studies differ considerably.
Finally, individuals with low and moderate resilience levels have a higher prevalence of using specialized MH services than those with high resilience. Presumably, people who struggle to recover quickly from difficulties and emotional distress may turn to external resources for help, such as MH services [32]. Previous studies have similar findings with negative correlations between resilience and seeking help for psychological problems among Chinese young adults [33] and migrant adolescents in Australia [32].
Implications
This study has identified factors that could be relevant for promoting the use of specialized MH services among young people with depression and/or anxiety. In recent years, several efforts have been made to improve MH care in Latin America, including developing legislation and implementing specialized MH centers with a community-based approach [55]. Despite these efforts, there is still a significant gap in addressing MH disorders, especially among young people [65]. Thus, a key challenge is to increase the supply of MH services and ensure these are youth-friendly, which requires young people to be involved in the design and implementation of such services.
Interestingly, depressive symptoms did not seem to drive service use, opposite to anxiety symptoms. Future research could focus on exploring whether anxiety is more distressing than depression or whether the latter has now become more accepted and perceived as not requiring specialized care. In any case, primary and secondary prevention among adolescents are essential and could specifically target young people with severe symptoms of depression as, even though this population is experiencing increased distress, they are less likely to access care.
Policymakers could aim to raise awareness about MH among young people, parents, teachers, and health professionals, especially in lower-resourced settings where awareness might be scarce. Help-seeking campaigns could include strategies that have proven to promote resilience and help-seeking behaviors, such as ensuring confidentiality and trust in the provider, having positive relationships with service staff, acknowledging the severity of the problem, giving young people the autonomy to seek help, and promoting emotion expression and openness [21, 63]. These campaigns could also benefit from incorporating young people with lived experience of MH problems from inception.
Strengths and limitations
This study is strengthened by its large sample size of over a thousand young participants from deprived areas in three of South America's biggest capital cities and its use of standardized methods across settings.
However, this study also has some limitations. Firstly, the study's observational nature only allows for determining associations, not causality. Secondly, self-reporting may lead to inaccuracies and recall bias because some of the information collected is about third parties and past events. Thirdly, there could be differential misclassification bias, where certain exposure variables, such as the severity of depressive symptoms and anxiety, may be influenced by access to MH services, potentially leading to overestimation or underestimation of the effect estimates. Finally, the data collection was partially conducted during the social distancing restrictions due to the COVID-19 pandemic, which could have impacted access to MH services in the three settings.