NR 715 Week 5 Evidence Synthesis
Student Name
Chamberlain University
NR-715: Scientific Underpinnings
Prof. Name
Date
Evidence Synthesis
Doctor of Nursing Practice (DNP)-prepared nurse practitioners are strategically positioned to respond to the global call for advancing nursing through active engagement and public health improvement. As part of this academic journey, the doctoral student accessed the Chamberlain University Library database to select a relevant topic and gather peer-reviewed articles for evidence-based intervention review.
The process began with screening article abstracts, followed by in-depth reviews of selected studies. The purpose was to synthesize evidence by identifying major findings and themes from both quantitative and qualitative research. Once these themes were identified, the student compared and contrasted them to evaluate their implications for improving clinical practice related to a significant national health problem.
For this evidence synthesis, three studies were reviewed:
- Cheruvu & Chiyaka (2019) explored the relationship between medical costs and delayed treatment for depression among older adults.
- Griffiths et al. (2021) conducted a qualitative study on the experiences of patients receiving ketamine infusion therapy for treatment-resistant depression.
- Pokhrel, Khadayat, & Tulachan (2020) examined the prevalence of depression, anxiety, and burnout among medical students in Nepal.
The reviewed studies highlighted that the mental health crisis is not limited to a specific demographic, age group, or geographic region. Rather, it is a pervasive concern across the United States and globally. Collectively, these works emphasize the urgent need for cost-effective, accessible, and innovative interventions to address the burden of depression and related mental health conditions.
Article One: Evidence Synthesis
According to Cheruvu & Chiyaka (2019), depression among older adults represents a pressing public health issue and is projected to become one of the leading causes of disease burden worldwide. Their cross-sectional quantitative study, published in BMC Geriatrics, assessed the prevalence of depressive symptoms among older adults who identified medical costs as a barrier to seeking treatment.
Using data from the Behavioral Risk Factor Surveillance System (BRFSS), the researchers analyzed responses from 24,810 adults aged 65 years and older. The findings revealed a significant correlation between delayed or foregone depression treatment and the inability to afford out-of-pocket healthcare expenses.
Despite limitations, such as the reliance on self-reported survey data, the study highlights a critical barrier: financial constraints. The authors urged policymakers and healthcare providers to prioritize interventions that minimize economic burdens and improve access to mental health services for older adults, particularly those with chronic conditions.
Article Two: Evidence Synthesis
Griffiths et al. (2021) conducted a qualitative study examining patients’ lived experiences with ketamine infusion for treatment-resistant depression. Published in the Journal of Affective Disorders Reports, the study used semi-structured face-to-face interviews with 13 adults who had received at least three ketamine treatments.
Participants reported debilitating symptoms of depression, including memory deficits, hopelessness, suicidal ideation, and anxiety, prior to treatment. Many had exhausted conventional therapies before trying ketamine infusion as a last resort.
The results demonstrated that ketamine provided significant improvements, including mood elevation, reduced suicidal thoughts, and, in some cases, the ability to return to work. Despite the limitation of a small sample size, the study underscored the potential of ketamine as an effective and relatively affordable intervention for individuals with severe depression. The authors emphasized the importance of incorporating patient perspectives to enhance treatment outcomes.
Article Three: Evidence Synthesis
Pokhrel, Khadayat, & Tulachan (2020) explored the prevalence of depression, anxiety, and burnout among medical students in Nepal through a cross-sectional survey of 651 participants. The findings, published in BMC Psychiatry, highlighted alarmingly high rates of psychological distress among future healthcare providers.
The study revealed that students frequently reported personal, academic, and patient-related burnout. Stress levels were attributed to the demanding and lengthy nature of medical education, alongside financial and emotional pressures.
Although the authors acknowledged that further clinical diagnostic tools are required to confirm findings, the study provided critical insights into the widespread mental health struggles of medical students. This underscores the need for early interventions, supportive academic structures, and accessible counseling services within medical education systems.
Compare and Contrast the Main Points
The three studies reviewed (Cheruvu & Chiyaka, 2019; Griffiths et al., 2021; Pokhrel et al., 2020) share a unifying concern: depression and its broader implications on individual and societal health.
Key Similarities:
- All studies addressed barriers to mental health treatment or outcomes of untreated depression.
- Each emphasized the urgent need for effective interventions tailored to unique populations (older adults, treatment-resistant patients, and medical students).
- Findings contributed to understanding depression as a pervasive, non-discriminatory condition with significant public health consequences.
Key Differences:
- Cheruvu & Chiyaka (2019): Focused on economic barriers to care for older adults.
- Griffiths et al. (2021): Highlighted patient experiences with a novel therapeutic option (ketamine).
- Pokhrel et al. (2020): Examined stress and burnout as precursors to depression among medical students.
NR 715 Week 5 Evidence Synthesis
Comparison Table
| Study | Design/Method | Population | Key Findings | Limitations | Implications |
|---|---|---|---|---|---|
| Cheruvu & Chiyaka (2019) | Quantitative, cross-sectional using BRFSS survey | 24,810 older adults (65+) | Financial barriers significantly delayed depression treatment | Reliance on self-reported survey data | Highlights need for policy interventions to reduce out-of-pocket costs |
| Griffiths et al. (2021) | Qualitative, semi-structured interviews | 13 adults with treatment-resistant depression | Ketamine infusion improved mood, reduced suicidal ideation, improved functioning | Small sample size | Suggests ketamine as an alternative, affordable therapy option |
| Pokhrel et al. (2020) | Quantitative, cross-sectional survey | 651 medical students in Nepal | High prevalence of depression, anxiety, and burnout | Requires further diagnostic interviews | Calls for institutional reforms to support student mental health |
Conclusion
The synthesis of these three studies highlights the multifaceted nature of depression and its widespread impact across different populations. The findings reveal that financial barriers, treatment resistance, and academic stress are significant contributors to the ongoing mental health crisis.
This evidence underscores the importance of policy advocacy, innovative treatment strategies, and institutional support systems. Ultimately, the doctoral student’s review demonstrates that depression does not discriminate by age, geography, or socioeconomic status, and addressing it requires a comprehensive, multi-level approach to improve public health outcomes.
References
Cheruvu, V. K., & Chiyaka, E. T. (2019). Prevalence of depressive symptoms among older adults who reported medical cost as a barrier to seeking health care: Findings from a nationally representative sample. BMC Geriatrics, 19(1), 192. https://doi.org/10.1186/s12877-019-1203-2
Griffiths, C., Walker, K., Reid, I., Maravic da Silva, K., & O’Neill-Kerr, A. (2021). A qualitative study of patients’ experience of ketamine treatment for depression: The ‘Ketamine and me’ project. Journal of Affective Disorders Reports, 4, 100079. https://doi.org/10.1016/j.jadr.2021.100079
NR 715 Week 5 Evidence Synthesis
Pokhrel, N. B., Khadayat, R., & Tulachan, P. (2020). Depression, anxiety, and burnout among medical students and residents of a medical school in Nepal: A cross-sectional study. BMC Psychiatry, 20(1), 298. https://doi.org/10.1186/s12888-020-02645-6