Vietnam's rapidly aging population has increased the demand for institutional care, highlighting the importance of understanding quality of life (QoL) among older adults in nursing homes. This cross-sectional study, conducted in 2025 in Hanoi, will explore associations between QoL and factors such as demographics, health status, and social support. Data will be collected through structured interviews using validated tools (e.g., WHOQOL-BREF, Barthel Index, MSPSS, MNA-SF, NRS, GDS-15) and analyzed with descriptive and inferential statistics. The study expects to show that functional independence and strong social support are linked to better QoL. Findings will provide evidence to guide nursing practice, care planning, and policy development for older adults in Vietnam's long-term care facilities.

Background: The aging of Vietnam's population has led to a growing demand for institutional care, underscoring the need to understand the quality of life (QoL) among older adults living in nursing homes. This study aims to identify and analyze factors associated with QoL, with a focus on demographic characteristics, health- related status, and perceived social support.

Methods: A cross-sectional study will be conducted in 2025 using convenience sampling from selected nursing homes in Hanoi. Participants will be aged 60 years or older, have resided in the facility for at least three months, be cognitively capable of communication, and provide informed consent. Data will be collected via structured face-to-face interviews using standardized instruments, including the WHOQOL- BREF, Barthel Index, Multidimensional Scale of Perceived Social Support (MSPSS), Mini Nutritional Assessment (MNA-SF), Numerical Raiting Scale (NRS) and Geriatric Depression Scale (GDS-15). SPSS version 27 will be used for data analysis, employing descriptive and inferential statistics such as t-tests, ANOVA, Pearson's correlation, and multiple linear regression.

Expected Results: It is anticipated that higher levels of functional independence and perceived social support will be positively associated with better QoL outcomes.

Expected Conclusion/Implications: Findings from this study are expected to contribute to evidence-based nursing practice and inform care planning and policy- making to improve the well-being of older adults in long-term care facilities in Vietnam.

Inclusion Criteria:

• - Aged 60 years or older
• Had resided in a nursing home for at least 3 months
• Capable of verbal communication and able to participate in a face-to-face interview - Had adequate cognitive function to complete the questionnaire, defined as a MoCA score ≥ 26
• Provided written informed consent

Exclusion Criteria:

• Has significant language barriers, such as being unable to communicate in Vietnamese or only speaking a minority language for which the research team does not have an appropriate interpreter.
• Is experiencing acute medical conditions requiring emergency treatment or is under medical isolation as required by public health regulations (e.g., in cases of acute infectious diseases).

Other

Older adults aged 60 and above residing in nursing homes in Hanoi in 2025. Facilities will be selected based on logistical feasibility and formal approval from the director. They provide long-term or day-care services, including assistance with ADLs, medical supervision, rehabilitation, and social activities, accommodating residents with varying physical and cognitive abilities.

Individual participant data (IPD) will not be shared due to the sensitive nature of personal health and social information collected from older adults in nursing homes. Data will be kept confidential and used solely for the purposes of this study.