key: cord-0820195-ml9i2m8w authors: Pérez-Rodríguez, Patricia; Díaz de Bustamante, Macarena; Aparicio Mollá, Salvador; Arenas, María Caridad; Jiménez-Armero, Susana; Lacosta Esclapez, Pilar; González-Espinoza, Liliana; Bermejo Boixareu, Cristina title: Functional, cognitive, and nutritional decline in 435 elderly nursing home residents after the first wave of the COVID-19 Pandemic date: 2021-06-24 journal: Eur Geriatr Med DOI: 10.1007/s41999-021-00524-1 sha: ac5549d5b42cece640f3b02ce790d788dbc202b0 doc_id: 820195 cord_uid: ml9i2m8w PURPOSE: Many institutionalized older people have died during the first wave of COVID-19. Other related consequences have not yet been described objectively. The aim of this study was to compare functional, cognitive, and nutritional status before and after the first wave among nursing home residents, in both COVID-19 and non-COVID-19 patients. METHODS: Older adults institutionalized in four nursing homes were assessed from May to June 2020, by a geriatric multidisciplinary team in collaboration with the nursing homes staff. Comprehensive geriatric assessment was performed including functional, cognitive, and nutritional variables before and after the first wave of the pandemic. Data from residents with positive results for microbiological testing for SARS-CoV-2 were compared with those who did not. RESULTS: 435 nursing home residents were included. The median age was 86.77 ± 8.5 years, 78.4% were women. 190 (43.9%) tested positive for coronavirus. Functional decline after the first wave was detected in 20.2% according to the Barthel Index and in 18.5% according to functional ambulation categories, p < 0.001. Cognitive status worsened by 22 and 25.9% according to the global deterioration scale (p < 0.001) and Lobo’s Mini-Examen Cognoscitivo (p 0.01), respectively. Onset of depressive symptoms was found in 48% (p < 0.001). The prevalence of malnutrition increased by 36.8 and 38.4% lost weight. When comparing the functional, cognitive, and nutritional decline between COVID-19 and non-COVID-19 patients no clinical or statistically significant differences were found except for the presence of prior malnutrition, higher in the COVID-19 group. CONCLUSION: We observed a significative functional, cognitive, and nutritional decline in institutionalized elderly after the first wave of COVID-19. These results may be caused by the lockdown itself, since no differences have been found between COVID-19 and non-COVID-19 patients. According to these results, interventions are necessary during social isolation or confinement to prevent systemic decline in the elderly. The first wave of the COVID-19 pandemic presented an unprecedented public health problem, one that was especially devastating in older adults. This is demonstrated by the mortality figures: over 95% of deaths from in Europe and over 80% of deaths in the United States and China have occurred in people aged 60 years or older [1] . COVID-19 shows multi-systemic involvement and, in the elderly, it presents a great complexity that requires a comprehensive and multidisciplinary approach adapted to the multiple pathologies of these patients [2] . Among the elderly, it is institutionalized older adults who present the highest rates of comorbidity, frailty, and disability [3] . Comorbidity and frailty have been shown to worsen the prognosis of SARS-CoV-2 involvement [2, 4, 5] . It should be added that infection is easily transmitted in the nursing home environment [6] , since they are built for communal living and staffed accordingly, making social distancing or isolation sometimes difficult or even impossible, thus favouring contagion [7] . In addition, clinical symptoms in the elderly are atypical, so detection is challenging [8] . Other factors that explain the enormous impact of the first wave of COVID-19 in nursing homes are the fact that not enough tests were done [7, 9] ; health professionals, their training, and protection measures were scarce [7] . We also know that the social isolation measures (fewer social interactions, restrictions in family visits, less physical activity), necessary to prevent the spread of the disease can have very serious consequences in older patients [7] , especially if they are frail, such as functional and cognitive decline, depression, and increased mortality [2, 10] , although collateral damage from isolation remains to be determined and has yet to be objectively described. The pre-pandemic prevalence of functional dependence, cognitive decline, and malnutrition is much higher in institutionalized older adults compared to older adults in the community [3] . Despite the variability between territories, according to Spanish and European research, around 81% of the elderly who live in nursing homes are dependent [11, 12] . Functional impairment has been shown to be a predictor of mortality, even greater than comorbidity [13] . It is also known that in these people, confinement to a bed or immobilization facilitates an accelerated reduction in muscle mass, strength, and functional capacity. The prevalence of dementia in nursing homes is around 68%, of which 30% is severe [11] . Dementia in patients with COVID-19 represents a significant risk of mortality, falls, aspiration pneumonia, and risk of delirium [14] . The prevalence of depression in nursing homes nationwide is around 30% [11] . There is a high prevalence of malnutrition (30%) and risk of malnutrition (50%) in nursing homes [15] . Malnutrition is associated with multiple adverse events such as functional impairment, falls, fractures, greater severity of acute and chronic diseases, higher mortality [15] , and immune dysfunction [16] . Malnutrition in patients with COVID-19 is high [17] , and can be related with a longer and unfavourable recover [18, 19] . The prevention, diagnosis and treatment of malnutrition must be included in the management of COVID-19 patients [18] . The main aim of this study is to compare the functional, cognitive, and nutritional status of institutionalized older adults before and after the first wave of the COVID-19 pandemic and also to assess whether there are differences between those who contracted COVID-19 and those who didn't. The study was carried out by a multidisciplinary geriatric team at a tertiary hospital that has 613 hospital beds and 62 nursing homes in its area of influence, serving a total of 6200 residents. A multicentre observational study was conducted in four of the nursing homes in this area between May 21 and June 23, 2020. All residents of these centres were included except those who were hospitalized or at home at the time of the study. A comprehensive geriatric assessment of each resident was performed in person by the hospital geriatric multidisciplinary team, which consisted of geriatricians, clinical nutritionists and nurses, with the collaboration of the nursing home health professionals (doctors, nursing staff and occupational therapists). Demographic data were collected such as age and sex, and clinical data such as the presence or not of SARS-CoV-2 infection diagnosed by microbiological tests (PCR-Polymerase Chain Reaction and/or IgG/IgM rapid test). Functional, cognitive, and nutritional scale data were collected from the nursing home records prior to the start of the COVID-19 pandemic (between January and March 2020), and these same scales were used after the first wave of the pandemic, which occurred in Spain between the months of March and May 2020. Functional assessment was carried out using the Barthel Index (BI) and the Functional Ambulation Categories (FAC) scale. BI scores were grouped as: independence for basic activities of daily living (BI 90-100), mild dependence (BI 60-89), moderate dependence (BI 40-59), severe dependence (BI 21-39) and total dependence (BI ≤ 20). A FAC score of 0 indicates the patient cannot walk or requires assistance from more than one person. FAC values of 1, 2, and 3, indicate that the patient can walk with great help from one-person, light help or supervision, respectively. A FAC value of 4 indicates independence for ambulation on level surfaces and a FAC value of 5 indicates independence on all surfaces. Regarding cognitive variables, we used the global deterioration scale (GDS), a cognitive assessment scale that includes values from 1 (no cognitive decline) to 7 (severe cognitive decline); Lobo's Mini-Examen Cognoscitivo (MEC), which distinguishes the following categories: 35-25: no cognitive impairment, 24-20: mild cognitive impairment, 19-14: moderate cognitive impairment and < 14: severe cognitive impairment; and the 10-item short portable mental status questionnaire (Pfeiffer's SPMSQ), in which values equal to or greater than 3 errors are suggestive of cognitive impairment. To assess mood, the residents were asked two questions in relation to the last month: "¿Have you often felt sad, discouraged or hopeless?" And "Have you felt less interest or pleasure in doing things?" [20] . A positive response was indicative of depressive syndrome. In patients whose functional situation prevented them from responding adequately to this question, the nursing home staff were consulted about depressive symptoms. Nutritional assessment was carried out using the Mini Nutritional Assessment-Short Form (MNA-SF) according to which three categories are established: malnutrition (0-7 points), risk of malnutrition (8-11 points) or no risk (12-14 points) . The nursing home weight and height records were used to calculate body mass index (BMI), with post-COVID-19 weight measurements taken in patients for whom the records were not available. It was quantified by percentage how was each person's food intake before and after, according to the nursing home medical records. Functional, cognitive, and nutritional decline were defined as a decline of at least one category of each variable during the first wave of the COVID-19 pandemic. The results for the different variables before and after the pandemic were subsequently analysed by comparing those of the "COVID-19" cohort of residents who tested positive for SARS-CoV-2 from microbiological tests with those of the "non-COVID-19" cohort who were not infected. After obtaining signed informed consent from each resident or a family member, the data were collected on anonymous data collection sheets, after which they were entered into the database. The study was approved by the Hospital's Ethics Committee. A descriptive analysis of the categorical variables was performed using absolute and relative frequencies. For numerical variables, the mean and standard deviation or the median and the IQR were used according to normality of distribution. Changes between the scores of the categorical variables were compared using McNemar's test; for numerical variables, the Wilcoxon signed-rank test was used. We looked for differences in certain variables between COVID-19 and non-COVID-19 patients using the Chisquare test to compare categorical variables and the Mann-Whitney U test for numerical variables. Subsequently, an ANCOVA analysis was performed to evaluate whether infection with COVID-19 was associated with worse results, adjusting for the previous score of each resident. Linear or logistic regressions were performed depending on the variable evaluated. The level of statistical significance was set at 0.05. The statistical software used was Stata/IC v. 16 The study included 435 residents from 4 different nursing homes (69, 75, 118, and 173, respectively). The mean age of people included in this study was 86.77 ± 8.5 years. Of these patients, 341 (78.4%) were women. There were 191 (43.9%) who had presented positive in microbiological tests for COVID-19. The median of the Charlson Index was 3 points (IQR 2-4). In March, 646 residents were in these nursing homes, 175 (27%) died during the first wave and 36 were not present in the moment of the study. The functional, cognitive, and nutritional variables before and after the first wave are listed in Table 1 . The largest decline noted was in the group of higher degree of severity in the activities of daily living (BI < 20/100) (from 29.2 to 39.3%). In the FAC test was found the highest increase also in the non-functional ambulation group (from 36.6 to 40%). In the cognitive assessment of nursing home residents advanced dementia was the most prevalent group (42.5, 37.3 and 54.2%, respectively, according to GDS, MEC and Pfeiffer's SPMSQ) after the first wave, but only in the MEC and the Pfeiffer's SPMSQ tests were detected changes. Most striking increase was found in the prevalence of depression (from 11.1 to 54.5%) and malnutrition according to the MNA-SF (from 20 to 56.8%) (Fig. 1) . The analysis included the number and percentage of subjects who presented a decline of at least one category for each variable during the first wave of the COVID-19 pandemic, adjusted for the previous status ( Table 2 ). The decline was statistically significant for all variables analysed except for Pfeiffer's SPMSQ. In the functional analysis 20.2% of residents presented a decline of at least one category in the Barthel Index and 18,5% in the FAC test. There is a greater functional impairment in the group of older adults with moderate (BI 40-59: 32.4%) and severe dependence (BI 21-39: 44.1%). Fit patients (Barthel 90-100 and FAC 5) were the groups with less functional impairment in both functional scales. Cognitive impairment was observed in 22,5% of subjects according to GDS, 25,9% to MEC and 14,1% in Pfeiffer's SPMSQ, predominantly happened in those with mild (GDS 3) and moderate cognitive impairment (GDS 4, prior to the pandemic. Onset of depression after the first wave of the pandemic appeared in 164 of 344 (47.97%) residents who did not have prior depression (p < 0.001). In the nutritional assessment there was a worsening in 92.9% of patients whose previous nutritional situation was considered normal according to the MNA-SF and a worsening of 63.8% of those at risk of malnutrition after the first wave of the COVID-19 pandemic. Likewise, the greatest decrease in the percentage of food intake occurred in patients with food intakes greater than 75% prior to the first wave. Weight loss was observed in 167 residents (38.4%), the median weight loss was 2.1 kg (IQR 0.4-4.6). The second aim of the study was to compare functional, cognitive, and nutritional decline between residents that had suffered COVID-19 during the first wave and residents free from SARS-CoV infection. We compared baseline characteristics of the COVID-19 cohort versus the non-COVID-19 cohort (Table 3) , and there were no statistically significant differences analysing demographic variables (age, sex), neither Charlson index, functional and cognitive variables, nor depressive symptoms. The only difference detected was in the nutritional assessment according to the MNA-SF before March, 80.1% of the COVID-19 patients identified malnutrition or risk of malnutrition compared to 63.5% of the non-COVID-19 residents (p 0.001). No statistically significant differences were detected when studying functional impairment in both groups (Barthel Index or FAC). There were also no differences in terms of cognitive decline according to MEC and Pfeiffer. In respect to GDS, COVID-19 patients had, on average, a GDS score after the first wave of the pandemic 0.27 points higher than that of non-COVID-19 residents, adjusting for the previous GDS score of each resident (95% CI 0.07; 0.46, p value 0.007). In relation to depressive syndrome, subjects with COVID-19 had a 43% lower risk of developing depression after the pandemic (OR 0.57, 95% CI 0.37; 0.88, p value 0.001). Assessing nutritional status, no significant differences were found in terms of weight loss or BMI. However, COVID-19 patients presented scores in the MNA-SF that were 0.44 points lower, adjusting for previous scores, than those of non-COVID-19 patients (95% CI −0.8; −0.04, p 0.03). The findings of this study show that institutionalized older adults presented significant worsening in their functional, cognitive, emotional, and nutritional status after the first wave of the pandemic, regardless of whether they were infected by SARS-CoV-2 or not, since no clinically or statistically significant differences were found when comparing the decline data for both groups. This shows that the observed worsening is not only associated to infection but 29 is probably related to isolation during the first wave of the pandemic. It is known that functional [21, 22] and cognitive [23] decline happen in elderly especially in those institutionalized compared with noninstitutionalized and there is a huge interpersonal variability depending on the characteristics and comorbidities of individuals. A drop on MMSE score of 2.8 points after placement in a NH is described [23] . Regarding functional decline, it is observed in 34.95% of institutionalized after 10 months [21] and in 5.8% of institutionalized during 6 months [22] . After the pandemic, worryingly high frequencies of severe or total dependence, severe dementia, depression, and malnutrition were detected in this population group, which has important implications for the Health Care System. Isolation has led to a worsening global condition in the elderly that is avoidable and could be considered iatrogenic. It is striking that functional, cognitive, and nutritional loss is greater in patients with mild-moderate impairments or those at risk, which indicates that this is the group that we must focus on the most to prevent potential complications during the second wave of COVID-19. Physical exercise, cognitive stimulation, and adequate nutritional management have disappeared in recent months due to the breakout of COVID-19 in nursing homes, which has stood out for its high rates of mortality and contagion. Confinement has favoured situations of prolonged immobility, little physical exercise, lack of cognitive stimulation [24, 25] , anxiety [26] , and depression [27] . According to our study, those who had COVID-19 may have lower risk to present depressive symptoms after the pandemic. These findings may be in relation to a better understanding of the confinement, since they passed the disease. Social isolation determines secondary functional decline, cognitive decline [28] , and mood deterioration [24, 26, 27] , as well as a negative impact at the nutritional level [19, 29] , favouring a reduction in food intake and triggering a loss of muscle mass that is hard to recover by dietary modifications alone. We detected statistically significant differences in nutritional status according to MNA-SF, which was worse in patients who presented COVID-19. This is consistent with published studies [17, 18] , and warrants further investigation. According to the results obtained in this study in relation to the high prevalence and risk of malnutrition, it is necessary to optimize nutritional intake through stimulation techniques, oral supplementation, and dedicating more time and trained caregivers to this matter. These results, as well as the well-known mortality, should promote the search for different interventions or strategies at all levels so that health workers, managers and politicians may prevent, as far as possible, these results from being repeated and progressing if this infection persists worldwide [9, 10, 30] . Failure to perform an adequate intervention would have a great impact on the health of our institutionalized elderly with great associated costs down the road [10] . Among the strengths of this study we can highlight that it is a multicentre study with a large sample (n = 435), including all the older adults institutionalized in those centres at the time of the study, without exclusion criteria, comparing both COVID-19 and non-COVID-19 cohorts. The study was carried out in person by a hospital multidisciplinary team using an individualized comprehensive geriatric assessment. There are no studies published to date with objective data on the consequences of isolation in nursing home residents. Among the limitations of the study, it should be noted that the baseline variables were collected retrospectively from the nursing home records, so that on some occasions the initial assessments were performed by different people than those who performed them at the time of the study. The study did not include hospitalized patients, probably in serious condition, who were not at the nursing homes at the time of the study or those who died during the first wave. Since this is an observational study, these results cannot be considered conclusive nor can they be extrapolated to the general population, and therefore, further studies are necessary. In addition, we must study how much of the lost function can be recovered and how long it takes to recover. We observed a significant impact in functional, cognitive, and nutritional status in older adults living in nursing homes after the first wave of the COVID-19 pandemic. This was not only conditioned by the infection itself, but also by the imposed isolation 29 . Maintaining ambulation and functional and cognitive stimulation, family support, and social interaction with other residents is essential to avoid dependence and depression, and to guarantee an adequate state of health [31] . Likewise, guaranteeing adequate nutritional intake would be a priority in the face of this second wave of COVID-19. In this situation of new normality, it is essential to develop the implementation of new technologies and to promote the use of apps to stimulate the patient at all levels [32] , and to use telemedicine to optimize care for the elderly and avoid the general decline derived from COVID-19, confinement and social isolation. Further research aimed at the prevention of functional, cognitive, and nutritional deterioration of the elderly in the face of the COVID-19 pandemic is urgent. 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We thank Ana Royuela for the collaboration in the data analysis. Author contributions PPR, MDB, SAM and CBB conceived and designed the study. PPR, MDB, SAM, MCA, SJA, PLE and LGE collected the data. PPR, MDB and CBB contributed to the literature review. PPR, MDB, MCA and CBB interpreted data. PPR, MDB and CBB were involved in the manuscript preparation. PPR, MDB, SAM, MCA, SJA, PLE, LGE and CBB critically reviewed the report, and all read and approved the final version.Funding No funding was reported. The authors have no relevant financial or non-financial interests to disclose.Availability of data and materials Data are available from the corresponding author upon reasonable request. The authors have declared no conflict of interest for this article and no financial conflicts. The study was approved by the Hospital's Ethics Committee. The patients or their families, gave consent to participate in the study.