Nurse retention after COVID-19 now sits at the center of workforce stability
The pandemic did more than strain hospitals; it exposed how fragile nurse retention had become across clinical settings. In BMJ Open, Buckley and colleagues mapped the peri- and post-COVID-19 evidence base on the factors tied to nurse retention, the strategies used to support it, and the interventions actually tested to keep nurses in the workforce. The review screened literature from 2019 onward and identified 130 studies for inclusion, giving a wide-angle view of how the profession has been trying to absorb the shock of the pandemic while still delivering care.
The central finding is blunt. Most of the published work measured some aspect of retention or turnover intention, but only nine interventions had been tested to address retention directly.
That gap matters because retention is not an abstract staffing metric. Nurse departure affects continuity of care, unit cohesion, patient safety, and the ability of already-stretched hospitals to absorb volume, acuity, and surges. A workforce can tolerate short-term disruption only up to a point; once experienced clinicians leave, organizations lose practical knowledge, team memory, and the mentoring structure that helps newer staff stay.
Staffing pressure, work environment strain and psychological distress shaped retention risk
The scoping review brought together qualitative, quantitative, mixed-methods, and gray literature studies involving Registered Nurses, Licensed Practical Nurses, Registered Practical Nurses, and Public Health Nurses. The evidence consistently pointed to several forces that pushed retention in opposite directions. Demographics appeared in the dataset, but the more immediate clinical pressures centered on staffing safety, work environment quality, psychological well-being, and COVID-19-specific stressors.
Safe staffing emerged as one of the most repeatedly cited anchors for retention. In practical terms, this reflects workload realism: nurses are more likely to stay when patient assignments are manageable, breaks are possible, and the unit does not operate in permanent crisis mode. Chronic understaffing does not merely raise burnout risk; it changes the emotional arithmetic of bedside care, turning each shift into a test of endurance rather than a sustainable role.
Psychological well-being ran through the literature as another major determinant. The pandemic intensified moral distress, fear of infection, grief, fatigue, and exhaustion, all of which can erode a nurse’s willingness to remain in a role even when the underlying commitment to patients stays intact. Work environments with poor communication or inconsistent leadership likely amplified those pressures by making the clinical burden feel both heavier and less controllable. In settings where uncertainty is already high, fragmented communication tends to magnify anxiety rather than relieve it.
Retention strategies clustered around staffing, leadership and professional support
The strategy literature converged on a familiar but still difficult set of priorities: safer flexible staffing, better work environments, stronger mental health and wellness supports, improved leadership and communication, more professional development, mentorship, and better compensation and incentives. Each of those domains speaks to a different layer of retention.
Flexible staffing is the most operational layer. When schedules can adapt to life events, caregiving responsibilities, or recovery from exhaustion, nurses are less likely to view departure as the only way to regain control. Leadership and communication are the organizational layer. A manager who communicates clearly, responds to workload concerns, and treats staffing problems as solvable tends to preserve trust, while inconsistent messaging can hasten attrition.
Professional development and mentorship address the career layer. Nurses often leave not only because the job is difficult, but because it feels stagnant or unsupported. When workplaces create visible growth paths and pair less experienced clinicians with trusted mentors, they reinforce identity and belonging. Compensation and incentives remain essential, but they function best when embedded in a broader environment that makes the work sustainable rather than merely better paid.
The review does not treat these strategies as interchangeable. Their common thread is that they reduce the distance between the demands of bedside work and the supports needed to remain in it.
Only nine tested interventions leave a thin evidence base for action
The most consequential finding may be the simplest one: only nine interventions aimed at nurse retention were identified. For a workforce problem that affects hospitals, community services, public health systems, and governments, that is a narrow intervention base. The literature is rich in diagnosis and comparatively sparse in trialed solutions.
This imbalance creates a practical problem for decision-makers. Organizations can describe the causes of attrition, but without tested interventions it becomes difficult to know which actions produce measurable improvement and which merely feel responsive. Staffing reforms, wellness programs, mentorship structures, and compensation changes may all be sensible, yet the review shows how few have been evaluated in a way that moves beyond intention toward evidence of effect.
The evidence map also suggests that retention research has leaned heavily toward measurement rather than implementation. Many studies tracked retention-related outcomes, turnover intention, or related constructs, but far fewer examined programs designed to change those outcomes. For health systems facing ongoing shortages, that leaves a major translational gap between what clinicians experience and what administrators can confidently deploy.
Workforce policy now needs tested retention programs, not only descriptive data
The review’s conclusion is straightforward: nursing leadership, healthcare organizations, and governments need to develop and test interventions that address retention. The policy relevance is immediate because nurse retention shapes access to care, quality, safety, and system resilience. When experienced nurses stay, units preserve expertise and reduce the constant churn that can destabilize care delivery.
The pandemic-era context makes the need for action more urgent, not less. Nurses did not simply encounter temporary stress; many worked through prolonged uncertainty, resource strain, and emotional depletion while holding together clinical systems that depended on them. Retention strategies therefore need to be built into workforce planning, not added after staffing has already become critical.
One limitation sits inside the evidence itself: the review maps a broad and heterogeneous literature, but heterogeneity also makes translation difficult. Studies differ in setting, design, nurse population, and retention measure, which means the field still lacks a unified intervention model. The next step is not another generic call for support. It is a stronger pipeline of evaluated programs that can show which combinations of staffing, leadership, wellness, mentorship, and incentive structures actually keep nurses at the bedside and in the community where they are needed most.