1. PubMed
1.1. Staff shortage AND impact AND quality of care; Free full text; 2020-2024; Clinical Trial; RCT; Systematic Review > 15
1.1.1. The Race to Retain Healthcare Workers: A Systematic Review on Factors that Impact Retention of Nurses and Physicians in Hospitals
1.1.2. Interventions to Increase Patient Safety in Long-Term Care Facilities-Umbrella Review
1.2. Quality of care AND association AND nurse staffing; Free full text; 2020-2024; Clinical Trial; RCT; Systematic Review > 15 + 2 Citation matching
1.2.1. Citation Matching: The impact of safety culture, quality of care, missed care and nurse staffing on patient falls: A multisource association study
1.2.2. Nurse staffing levels and patient outcomes: A systematic review of longitudinal studies - NEIN
1.2.2.1. Schneeball: Effects of nurse-to-patient ratio legislation on nurse staffing and patient mortality, readmissions, and length of stay: a prospective study in a panel of hospitals
1.2.3. The association between multi-disciplinary staffing levels and mortality in acute hospitals: a systematic review
1.2.4. The Impact of Rationing Nursing Care on Patient Safety: A Systematic Review
1.3. Lack of staff AND impact AND quality of care; Free full text; 2020-2024; RCT, Clinical Trial, Meta-Analysis, Review, Systematic Review > 87
2. CINAHL
2.1. Staff shortage AND impact AND quality of care; PDF Full Text; Academic Journal; Englisch; 2020-2024 > 8
2.2. Quality of care AND association AND nurse staffing; PDF Full Text; Academic Journal; Englisch; 2020-2024 > 6
2.2.1. Staffing levels and nursing-sensitive patient outcomes: Umbrella review and qualitative study - ABER nur in PubMed komplett zugängliche PDF
2.3. Lack of staff AND impact AND quality of care; PDF Full Text; 2020-2024; Academic Search Elite; Academic Journal; > 7
3. Cochrane Library
3.1. Staff shortage AND impact AND quality of care; 2020-2024 > 0 Cochrane Reviews, > 4 Trials
3.2. Lack of staff AND impact AND quality of life; 2020-2024 > 8
4. ScienceDirect
4.1. Staff shortage AND impact AND quality of care; 2024; Research Articles > 456
4.1.1. Unfinished nursing care in intensive care units and the mediating role of the association between nurse working environment, and quality of care and nurses’ wellbeing
4.2. Quality of care AND association AND nurse staffing; 2024; Research Articles; Englisch, Open access & Open archive > 290
4.2.1. Association of nurse understaffing and limited nursing work experience with in-hospital mortality among patients: A longitudinal register-based study
4.2.2. A New Perspective on Missed Nursing Care in the Emergency Department: A Descriptive Cross-Sectional Study
4.3. The association between nurse staffing and quality of Care in Emergency Departments: A systematic review???
4.4. Lack of staff AND impact AND quality of care; 2020-2024; Nursing and Health Professions> 8.893
4.4.1. Safety culture, quality of care, missed care, nurse staffing and their impact on pressure injuries: A cross-sectional multi-source study
4.4.2. The relationship between quality and staffing in long-term care: A systematic review of the literature 2008–2020
4.4.3. Midwifery and nurse staffing of inpatient maternity services–Asystematic scoping review of associations with outcomes and quality of care
4.4.4. Unfinished nursing care in intensive care units and the mediating role of the association between nurse working environment, and quality of care and nurses’ wellbeing
4.4.5. The association between nurse staffing level and length of stay in general ward and intensive care unit in Korea
4.4.6. Staff shortages in critical care units: Critical care nurses experiences
4.4.7. The Nurse Perceived Adequacy of Staffing Scale for general hospital wards: A development and psychometric validation study
4.4.8. The association between nurse staffing and quality of care in emergency departments: A systematic review