Retention of nurses in the Portuguese NHS: organizational, career, and work–life balance factors shaping intention to stay

Nurse retention is a critical challenge across Europe, directly affecting workforce sustainability, quality of care, and health systems resilience. Despite persistent shortages and increasing emigration, evidence on nurse retention determinants within the Portuguese National Health Service (NHS) remains limited. This study aims to identify factors influencing nurses' intention to stay in the NHS, contributing to national and European debates on sustainable workforce strategies. A quantitative, observational, cross-sectional survey was conducted among a representative sample of 1494 nurses working in NHS. A validated questionnaire was developed using a Nominal Group Technique and Delphi Panel with stakeholders, to measure job satisfaction with Likert scales. Inferential statistical analyses, including t-tests and multiple linear regression, examined associations between intention to stay and factors such as job satisfaction, work-life balance, career development opportunities, remuneration, and sociodemographic characteristics. Fixed work schedules, overall job satisfaction, age, satisfaction with work-life balance, and career development emerged as significant predictors of intention to stay. Satisfaction with salary and financial incentives, while low, was not statistically significant. Findings highlight the importance of integrated workforce retention strategies combining organizational improvements, career progression pathways, and work-life balance policies. These findings differ from those observed among physicians in parallel research, confirming the need for profession-specific retention approaches. This study provides new evidence on nurse retention in Portugal, reinforcing the need for human resources policies aligned with European Union priorities on workforce sustainability. Cross-country policy learning and evidence-informed, context-sensitive strategies are crucial for supporting nurse retention and health system resilience.