Background Obesity is a well-established risk factor for multi-morbidity and disability among older adults in the community and acute care settings. However, nursing home residents with body mass index (BMI) below 18.5 kg/m2 and above 25.0 kg/m2 have been understudied. We examined the prevalence of multi-morbidity and disability in activities of daily living (ADL) by BMI category and further investigated the association between BMI, multi-morbidity, and disability of ADL in a large cohort of older adults in nursing homes in New Zealand. Methods A retrospective review of nursing home residents’ data obtained from the New Zealand International Resident Assessment Instrument national dataset from 2015 to 2018. One hundred ninety-eight thousand seven hundred ninety older adults (≥60 years) living in nursing homes were included. BMI was calculated as weight in kilograms (kg) divided by height in meters squared (m2). Multimorbidity was defined as the presence of ≥2 health conditions. The risk of disability was measured by a 4-item ADL self-performance scale. The prevalence ratio (PR) of the association between BMI and multi-morbidity and between BMI and disability in ADL was assessed using Poisson regression with robust variance. Results Of the 198,790 residents, 10.6, 26.6, 11.3 and 5.4% were underweight, overweight, obese, and extremely obese, respectively. 26.4, 31.3 and 21.3% had one, two and three disease conditions, respectively, while 14.3% had four or more conditions. 24.1% could perform only one ADL, and 16.1% could perform none. The prevalence of multi-morbidity increased with increasing BMI, whereas mean disability in ADL decreased with increasing BMI. The risk of multi-morbidity was higher for the overweight (PR, 95%CI: 1.03, 1.02–1.03) and obese (PR, 95% CI: 1.07, 1.06–1.08) compared to normal weight after controlling for age, sex, ethnicity, and region. BMI was inversely associated with mean ADL; β, 95% CI for overweight (− 0.30, − 0.32, − 0.28) and obese − 0.43, − 0.45, − 0.40 compared to normal weight. Conclusion Being underweight was associated with a decline in the performance of ADL in nursing home residents. In contrast, being overweight and obese positively affected functional performance, demonstrating that the obesity paradox plays an important role in this population. The observed associations highlight areas where detection and management of underweight and healthy aging initiatives may be merited.
Objective: To establish the preparedness of nursing homes to deliver high quality, safe and equitable bariatric care for older adults with extreme obesity. Design and methods: A collective case study approach was used. Data collection included observational and interview data from three nursing homes, and a review of 224,200 resident admissions over a 3-year period in New Zealand. Participants: Twenty eight health care workers from three nursing homes in the North Island of New Zealand. Results: Despite a willingness by healthcare staff to care for older adults with extreme obesity, nursing homes were not well equipped to provide safe equitable care for this resident population. Key areas of concern for nursing homes related to limitations in the infrastructure, and financial barriers relating to government funded contracted care services which incorporated equipment procurement and safe staffing ratios. Conclusion: Nursing homes are unprepared to accommodate the existing and increasing number of older adults with extreme obesity who will require bariatric specific care. Government agencies and policy makers will need to consider the financial implications of the increasing need for bariatric level support within aged care, as well as the impact on individual nursing home resources and quality of care provided. Considerable sector and government attention is needed in relation to infrastructure and funding, to allow for the provision of high quality, safe and equitable care for this population group.
Little is known about the level of service demand and preparedness of Aotearoa New Zealand’s aged residential care facilities to care for older adults with extreme obesity. The aim of this study was to assess the current state of bariatric (extreme obesity) services within aged residential care. An environmental scan was conducted to identify bariatric resident needs and gaps in service provision to inform the development of policy and service provision. Observational and interview data from three facilities in Aotearoa New Zealand was collected along with a retrospective review of national resident admissions over a three-year period. Poor environmental design that included infrastructure deficiencies and financial barriers impacted on the ability to deliver safe and equitable care for this population. Specifically, equipment procurement and safe staffing ratios were of concern to the sector. There is an increasing need for bariatric level support within aged care, necessitating more equipment and staff, adaptation of physical care environments, and enhanced funding. Significant investment is required to address care concerns of older adults with extreme obesity at government and organisational levels.
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