Associations Between Blood Nutritional Biomarkers and Cerebral Amyloid-ß: Insights From the COGFRAIL Cohort Study.

Understanding the relationship between blood nutrients and neurodegeneration could contribute to devising strategies for preventing Alzheimer's disease. We investigated the associations between fatty acids, vitamins D, B6, B12, folate, homocysteine, and the cerebral load of amyloid ß (Aß). This cross-sectional study included 177 older adults (70-96 years, 65% female) with objective cognitive impairment, prefrail, or frail. Cerebral Aß load was determined using positron emission tomography Standardized Uptake Value ratios. Fatty acids were assessed in erythrocytes, vitamins D and homocysteine in serum, and the other vitamins in plasma. Linear regression models corrected for multiple comparisons evaluated the associations between each nutrient and Aß. The principal component factor followed by linear regression grouped the fatty acids strongly correlated (factor) and associated with Aß. Higher concentrations of polyunsaturated fatty acids (PUFAs): clupanodonic acid (22:5n-3; ß: -0.13; p = .001), mead acid (20:3n-9; ß: -0.07; p = .036), and adrenic acid (22:4n-6; ß: -0.05; p = .031) were associated with lower global Aß load, whereas linoleic acid (18:2n-6) was associated with higher global Aß load (ß: 0.18; p = .042). Clupanodonic acid was inversely associated with Aß in all cerebral regions except the thalamus. The factor composed of mead, clupanodonic, and arachidonic (20:4n-6) acids was associated with a lower global Aß load (ß: -0.02; p = .002). Some erythrocyte PUFAs were inversely associated with Aß load in the brain, and most of them were metabolites of the essential fatty acids linoleic and α-linolenic. Given the cross-sectional design, these results must be carefully interpreted, and longitudinal studies are needed.

Frailty in Older Patients with Transthyretin Cardiac Amyloidosis.

Background-Transthyretin cardiac amyloidosis (ATTR-CA) prevalence increases with age. The interplay between frailty and heart failure has been increasingly recognized. The objective of this study is to compare clinical, biological, and transthoracic echocardiography (TTE) characteristics of older ATTR-CA patients according to the G8 frailty screening tool. Methods-Patients over 75 years old with a confirmed diagnosis of ATTR-CA were included between January 2020 and April 2021. All patients underwent a routine blood test, TTE, and a functional assessment with a six-minute walking distance test (6MWD) or cardiopulmonary exercise testing (CPET), and the G8 score was calculated. Results-Fifty-two patients were included. Thirty-nine (75%) patients were frail and their mean NYHA stage was more severe (2.2 vs. 1.7; p = 0.004); 62% of them had a Gilmore stage of 2 or 3 (p = 0.05). Global left ventricular strain (GLS) was lower (-11.7% vs. -14.9%; p = 0.014) and the interventricular septum was thicker (18 ± 2 mm vs. 17 ± 2 mm; p = 0.033) in frail patients. There were no significant differences according to functional tests. Conclusion-The majority of older patients with ATTR-CA are frail according to the G8 score. They are more symptomatic and have an increased cardiac involvement and a poorer prognosis, requiring more personalized cardiac management.

Cross-sectional associations of dietary intake with hearing and vision capacities and potential mediation effect of inflammation in older adults: the COGFRAIL study.

BACKGROUND: Considering their prevalence and burden, information on the sensory impairment etiology is essential. Links between nutrition and sensory impairment through inflammation have been suggested. Although the decline in sensory capacities is age-related, few research included a geriatric population. AIMS: Exploring the associations of nutrition with sensory capacities and test inflammation as a mediator among cognitively and physically impaired older adults. METHODS: Cross-sectional data from the COGFRAIL cohort, including 164 participants with no hearing aid and 20 participants wearing no visual aid. Hearing was evaluated using the Hearing Handicap Inventory for the Elderly-screening version (on 40 points, the lower the better), and the Monoyer chart (one to ten out of ten points, the higher the better), and the Parinaud scale (from 1.5, the best, to 28 points, the worst) assessed distant and near vision, respectively. Dietary intake was assessed through a diet history interview and inflammation was measured by the C-Reactive Protein level. Multivariate linear regressions were performed and Structural Equation Modeling (SEM) framework was used to explore the potential mediation effect of inflammation on the diet-hearing relationships. RESULTS: None of the nutrients was significantly associated with hearing acuity in the regressions or the SEM model. Regarding vision, a higher intake of saturated fatty acids was related to lower long-distance visual acuity, and greater Omega-3 consumption was associated with better near-vision capacity. DISCUSSION: No nutrient was associated with hearing capacity and relationships between fatty acids quality and vision acuity were suggested. CONCLUSION: These exploratory results require further investigations.

Development and Validation of a Cutoff for the Chair Stand Test as a Screening for Mobility Impairment in the Context of the Integrated Care for Older People Program.

BACKGROUND: The 5-repetition chair stand test (CST) is increasingly being used to assess locomotion capacity in older adults. However, there is a lack of age-stratified cutoffs for adults aged ≥70 validated against a higher risk of functional loss. METHODS: We used 2 population-based studies (Study on global AGEing and adult health in Mexico [SAGE Mexico] and Toledo Study for Healthy Aging [TSHA]) and receiver operating characteristic (ROC) analyses to develop and cross-validate age-stratified chair stand cutoffs with activities of daily living (ADL) disability as the outcome. Then, we used data from an randomized controlled trial (RCT) (Multidomain Alzheimer Preventive Trial [MAPT]) and a frailty day-hospital for external validation with cross-sectional and longitudinal measures of ADL disability. The merged sample of SAGE Mexico and TSHA was n = 1 595; sample sizes for external validation were: MAPT n = 1 573 and Frailty day-hospital n = 2 434. The Cox models for incident disability in MAPT had a mean follow-up of 58.6 months. RESULTS: Cutoffs obtained were 14 second (ages 70-79) and 16 second (ages 80+). Those cutoffs identified older adults at higher odds of incident ADL disability odds ratio (OR) = 1.72 (95% confidence interval [CI] 1.06; 2.78) for ages 70-79 and odds ratio (OR) = 2.27 (95% CI 1.07; 4.80) in those aged 80+. Being a slow chair stander according to the cut points was associated with ADL disability in cross-sectional and longitudinal measures. CONCLUSIONS: Fourteen- and 16-second cut points for the CST are suitable to identify people at higher risk of functional decline among older adults in Mexico and Toledo, Spain. Adjusting the cut point from 14 to 16 second generally improved the psychometric properties of the test. The validation of these cutoffs can facilitate the screening for limited mobility and the implementation of the Integrated Care for Older People program.

Nutrients and amyloid ß status in the brain: A narrative review.

Amyloid beta (Aß) is a peptide and a hallmark of Alzheimer's disease (AD). Emerging evidence suggests that Aß levels could be influenced by diet. However, the evidence is sparse and for some nutrients, controversial. The aim of this narrative review is to gather the findings of observational and clinical trials involving human participants on the relationships between nutrients and brain Aß status. Some dietary patterns are associated to reduced levels of Aß in the brain, such as the Mediterranean diet, ketogenic diet as well as low intake of saturated fat, high-glycemic-index food, sodium, and junk/fast food. Low Aß status in the brain was also associated with higher density lipoproteins (HDL) cholesterol and polyunsaturated fatty acids consumption. Data on alcohol intake is not conclusive. On the contrary, high Aß levels in the brain were related to a higher intake of total cholesterol, triglycerides, low-density lipoproteins (LDL) cholesterol, saturated fat, sucrose, and fructose. Folic acid, cobalamin, vitamin E, and vitamin D were not associated to Aß status, while high blood concentrations of Calcium, Aluminum, Zinc, Copper, and Manganese were associated with decreased Aß blood levels but were not associated with Aß cerebral spinal fluid (CSF) concentrations. In conclusion, certain dietary patterns and nutrients are associated to brain Aß status. Further research on the association between nutrients and brain Aß status is needed in order to pave the way to use nutritional interventions as efficacious strategies to prevent Aß disturbance and potentially AD.

Diagnostic accuracy of the FRAIL scale plus functional measures for frailty screening: a cross-sectional study.

BACKGROUND: There is little knowledge of the diagnostic accuracy of screening programmes for frailty in primary care settings. AIM: To assess a two-step strategy consisting of the administration of the FRAIL scale to those who are non-dependent and aged ≥75 years, followed-up by measurement of the Short Physical Performance Battery (SPPB) or gait speed in those who are positive. DESIGN & SETTING: Cross-sectional and longitudinal cohort study. Analysis of primary care data from the FRAILTOOLS project at five European cities. METHOD: All primary care patients consecutively attending were enrolled. They received the index tests, plus the Fried frailty phenotype (FP) and the frailty index to assess their frailty status. Mortality and worsening of dependency in basic and instrumental activities of daily living (BADL and IADL) over 1 year were ascertained. RESULTS: Prevalence of frailty based on FP was 14.9% in the 362 participants. A FRAIL scale score ≥1 had a sensitivity of 83.3% (95% confidence interval [CI] = 73.1 to 93.6) to detect frailty. A positive result and an SPPB score <11 had a sensitivity of 72.2% (95% CI = 59.9 to 84.6); when combined with a gait speed <1.1 m/s, the sensitivity was 80.0% (95% CI = 68.5 to 91.5). Two-thirds of those screened as positive were not frail. In the best scenario, sensitivities of this last combination to detect IADL and BADL worsening were 69.4% (95% CI = 59.4 to 79.4) and 63.6% (95% CI = 53.4 to 73.9), respectively. CONCLUSION: Combining the FRAIL scale with other functional measures offers an acceptable screening approach for frailty. Accurate prediction of worsening dependency and death need to be confirmed through the piloting of a frailty screening programme.

Monocytes are the main source of STING-mediated IFN-α production.

BACKGROUND: Type I interferon (IFN-I) production by plasmacytoid dendritic cells (pDCs) occurs during viral infection, in response to Toll-like receptor 7 (TLR7) stimulation and is more vigorous in females than in males. Whether this sex bias persists in ageing people is currently unknown. In this study, we investigated the effect of sex and aging on IFN-α production induced by PRR agonist ligands. METHODS: In a large cohort of individuals from 19 to 97 years old, we measured the production of IFN-α and inflammatory cytokines in whole-blood upon stimulation with either R-848, ODN M362 CpG-C, or cGAMP, which activate the TLR7/8, TLR9 or STING pathways, respectively. We further characterized the cellular sources of IFN-α. FINDINGS: We observed a female predominance in IFN-α production by pDCs in response to TLR7 or TLR9 ligands. The higher TLR7-driven IFN-α production in females was robustly maintained across ages, including the elderly. The sex-bias in TLR9-driven interferon production was lost after age 60, which correlated with the decline in circulating pDCs. By contrast, STING-driven IFN-α production was similar in both sexes, preserved with aging, and correlated with circulating monocyte numbers. Indeed, monocytes were the primary cellular source of IFN-α in response to cGAMP. INTERPRETATION: We show that the sex bias in the TLR7-induced IFN-I production is strongly maintained through ages, and identify monocytes as the main source of IFN-I production via STING pathway. FUNDING: This work was supported by grants from Région Occitanie/Pyrénées-Méditerranée (#12052910, Inspire Program #1901175), University Paul Sabatier, and the European Regional Development Fund (MP0022856).

Diagnostic accuracy of the frail scale plus functional measures for frailty screening.

BACKGROUND: There is little knowledge of the diagnostic accuracy of screening programmes for frailty in primary care settings. AIM: To assess a two-step strategy consisting of the administration of the FRAIL scale to those who are non-dependent, aged ≥75 years, followed-up by measurement of the Short Physical Performance Battery (SPPB) or gait speed in those who are positive. DESIGN & SETTING: Cross-sectional and longitudinal cohort study. Analysis of primary care data from the FRAILTOOLS project at five European cities. METHOD: All patients consecutively attending were enrolled. They received the index tests plus the Fried phenotype and the frailty index to assess their frailty status. Mortality and worsening of dependency in basic (BADL) and instrumental (IADL) activities of daily living over a year were ascertained. RESULTS: Prevalence of frailty based on frailty phenotype was 14.9% in the 362 participants. A FRAIL scale score ≥1 had a sensitivity of 83.3% (95%CI:73.1-93.6) to detect frailty. A positive result and a SPPB score <11 had a sensitivity of 72.2% (95%CI: 59.9-84.6); when combined with a gait speed <1.1 m/s, the sensitivity was 80% (95%CI: 68.5-91.5). Two thirds of those screened as positive were not frail. In the best scenario, sensitivities of this last combination to detect IADL and BADL worsening were 69.4% (95%CI: 59.4-79.4) and 63.6% (95%CI: 53.4-73.9). CONCLUSION: Combining the FRAIL scale with other functional measures offers an acceptable screening approach for frailty. Accurate prediction of worsening dependency and death need to be confirmed through the piloting of a frailty screening programme.

Potential determinants of unfavourable healthcare utilisation trajectories during the last year of life of people with incident Alzheimer Disease or Related Syndromes: a nationwide cohort study using administrative data.

BACKGROUND: people approaching the end-of-life frequently face inappropriate care. With Alzheimer Disease or Related Syndromes (ADRS), end-of-life is characterised by progressive decline, but this period remains difficult to identify. This leads to a lack of anticipation and sometimes with unfavourable healthcare utilisation trajectories (HUTs). OBJECTIVE: to quantify unfavourable HUTs during the last year of life and identify their potential determinants in both community and nursing-home settings. DESIGN: nationwide cohort study using administrative database. SETTING: French community and nursing-home residents. SUBJECTS: incident ADRS people identified in 2012, who died up to 31 December 2017. METHODS: we used multidimensional clustering to identify 15 clusters of HUTs, using 11 longitudinal healthcare dimensions during the last year of life. Clusters were qualitatively assessed by pluri-disciplinary experts as favourable or unfavourable HUTs. Individual and contextual potential determinants of unfavourable HUTs were studied by setting using logistic random-effect regression models. RESULTS: 62,243 individuals died before 31 December 2017; 46.8% faced unfavourable end-of-life HUTs: 55.2% in the community and 31.8% in nursing-homes. Individual potential determinants were identified: younger age, male gender, ADRS identification through hospitalisation, shorter survival, life-limiting comorbidities, psychiatric disorders, acute hospitalisations and polypharmacy. In the community, deprivation and autonomy were identified as potential determinants. Contextual potential determinants raised mostly in the community, such as low nurse or physiotherapist accessibilities. CONCLUSIONS: Nearly half of people with ADRS faced unfavourable HUTs during their last year of life. Individual potential determinants should help anticipate advance care planning and palliative care needs assessment. Contextual potential determinants suggest geographical disparities and health inequalities.

Diabetes and Frail Older Patients: Glycemic Control and Prescription Profile in Real Life.

(1) Background: The latest recommendations for diabetes management adapt the objectives of glycemic control to the frailty profile in older patients. The purpose of this study was to evaluate the proportion of older patients with diabetes whose treatment deviates from the recommendations. (2) Methods: This cross-sectional observational study was conducted in older adults with known diabetes who underwent an outpatient frailty assessment in 2016. Glycated hemoglobin (HbA1c) target is between 6% and 7% for nonfrail patients and between 7% and 8% for frail patients. Frailty was evaluated using the Fried criteria. Prescriptions of glucose-lowering drugs were analyzed based on explicit and implicit criteria. (3) Results: Of 110 people with diabetes with an average age of 81.7 years, 67.3% were frail. They had a mean HbA1c of 7.11%. Of these patients, 60.9% had at least one drug therapy problem in their diabetes management and 40.9% were potentially overtreated. The HbA1c distribution in relation to the targets varied depending on frailty status (p < 0.002), with overly strict control in frail patients (p < 0.001). (4) Conclusions: Glycemic control does not seem to be routinely adjusted to the health of frail patients. Several factors can lead to overtreatment of these patients.

Impact of a comprehensive geriatric assessment on decision-making in older patients with hematological malignancies.

OBJECTIVE: Hematological treatment decisions in older adults with hematological malignancies are complex. Our objective is to study the impact of a comprehensive geriatric assessment on hematological treatment decision in older patients and the factors associated with change in treatment plan. METHODS: We conducted a cross-sectional analysis of patients aged 65 years and above with hematological malignancies, hospitalized between 2008 and 2019 at the University Cancer Institute of Toulouse. They were assessed by a geriatrician/nurse team using a comprehensive geriatric assessment (CGA). A penalized logistic regression model with elastic net regularization was used to identify factors associated with change in hematological treatment plan. RESULTS: A total of 424 patients were included. Main hematological malignancies were lymphoma (36.1 %), acute myeloid leukemia (26.9 %) and myelodysplastic syndrome (19.8%). Change in hematological treatment plan was suggested after CGA for 92 patients (21.7%). Factors associated with change in treatment plan were functional impairment according to ADL and IADL scale, mobility impairment, the presence of comorbidity defined by the Charlson score >1 and increasing age. CONCLUSION: A CGA has a significant impact on hematological treatment decision in older patients. Functional and mobility impairment, comorbidities and age are predictive factors of change in treatment plan.

Acute Care of Older Patients with COVID-19: Clinical Characteristics and Outcomes.

(1) Background: COVID-19 has become a global pandemic and older patients present higher mortality rates. However, studies on the characteristics of this population set are limited. The objective of this study is to describe clinical characteristics and outcomes of older patients hospitalized with COVID-19. (2) Methods: This retrospective cohort study was conducted from March to May 2020 and took place in three acute geriatric wards in France. Older patients hospitalized for COVID-19 infections were included. We collected clinical, radiological, and laboratory outcomes. (3) Results: Ninety-four patients were hospitalized and included in the final analysis. Mean age was 85.5 years and 55% were female. Sixty-four (68%) patients were confirmed COVID-19 cases and 30 (32%) were probable. A majority of patients were dependent (77%), 45% were malnourished, and the mean number of comorbidities was high in accordance with the CIRS-G score (12.3 ± 25.6). The leading causes of hospitalization were fever (30%), dyspnea (28%), and geriatric syndromes (falls, delirium, malaise) (18%). Upon follow-up, 32% presented acute respiratory failure and 30% a geriatric complication. Frailty and geriatric characteristics were not correlated with mortality. Acute respiratory failure (p = 0.03) and lymphopenia (p = 0.02) were significantly associated with mortality. (4) Conclusions: Among older patients hospitalized with COVID-19, clinical presentations were frequently atypical and complications occurred frequently. Frailty and geriatric characteristics were not correlated with mortality.

[Substance use disorder in the elderly and specified DSM-5 criteria]. / Tous les critères DSM-5 du trouble lié à l'usage de substance se valent-ils chez les sujets âgés ?

BACKGROUND: Substance use disorder (SUD) is commonly thought to be less frequent among the elderly than among younger adults. However, this disorder could be insufficiently screened in this population. And the diagnosis could be difficult to make especially because of specificities of this population. The diagnosis is based on the criteria of the DSM-5. Nevertheless, DSM-5 criteria were elaborated for younger adults and some of them could be inappropriate for older adults. METHODS: We studied the frequency of the DSM-5 criteria in a population of 59 patients aged around of 80 years, non-dependent and exposed to alcohol or benzodiazepines. We collected data relative to age, gender, type of residence (self-home or retirement house), medical past history, current treatment. Patient were also asked about their alcohol consumption, time of exposition, quantity of alcohol ingested or dose of benzodiazepines ingested and frequency of consumption. Alcohol consumption was reported as alcohol unit per day (one unit containing 10-gram alcohol). Frequency consisted in number of days with consumption in a week. Concerning benzodiazepine with evaluated the quantity by converting dose in equivalent diazepam per day. We determine the frequency of each criterion and the association with SUD diagnosis. RESULTS: We found that 45% of patients presented a diagnosis of SUD. DSM criteria 1, 2, 4, 9, 10 and 11 were found significantly more frequently in patients with addiction than in those without addiction. On the regression analysis criteria 1, 4, 6, 9, 10 and 11 as well as the number of units of alcohol consumed per day were associated with the diagnosis of addiction. The other socio-demographic factors were not associated with the diagnosis. CONCLUSION: This pilot study highlights that certain DSM-5 addiction criteria seem to be more relevant to seek in the elderly.

Hemoglobin concentration; a pathway to frailty.

BACKGROUND: Frailty and hemoglobin concentration, above what would be considered clinical anemia, are two common findings in older patients that lead to an increased risk of negative health outcomes. The objective of this study is to evaluate whether hemoglobin concentration is an independent predictor of frailty and investigate possible causal pathways with a focus on the relationship between inflammation or nutrition and hemoglobin concentration. METHODS: 1829 community-dwelling participants aged 65 years or older who visited the Toulouse frailty day hospital during 2011 and 2016 were included in this analysis. Patients underwent a comprehensive geriatric assessment and had a blood sample taken. A series of multivariate logistic regression models were performed after minimizing potential influence from age, gender, kidney function, inflammation, cognition, nutritional status and certain socio-economic factors. RESULTS: Hemoglobin concentration and frailty are significantly associated after minimizing potential influence from other covariates (p < 0.005). An increase in one point of hemoglobin concentration is associated with a 14% risk reduction of being frail (OR = 0.86, 95%IC = 0.79-0.94). There was no evidence of a significant causal relationship between inflammation and nutritional status in the relationship between hemoglobin concentration and frailty status (p > 0.005). CONCLUSIONS: Hemoglobin concentration is strongly associated with frailty in older adults. These results can have potentially important implications for prevention policies targeting frailty by identifying potential patients with high risk of adverse outcomes and functional outcomes.

Impact of the comprehensive geriatric assessment on treatment decision in geriatric oncology.

BACKGROUND: The comprehensive geriatric assessment (CGA) is the gold standard in geriatric oncology to identify patients at high risk of adverse outcomes and optimize cancer and overall management. Many studies have demonstrated that CGA could modify oncologic treatment decision. However, there is little knowledge on which domains of the CGA are associated with this change. Moreover, the impact of frailty and physical performance on change in cancer treatment plan has been rarely assessed. METHODS: This is a cross-sectional study of older patients with solid or hematologic cancer referred by oncologists for a geriatric evaluation before cancer treatment. A comprehensive geriatric assessment was performed by a multidisciplinary team to provide guidance for treatment decision. We performed a multivariate analysis to identify CGA domains associated with change in cancer treatment plan. RESULTS: Four hundred eighteen patients, mean age 82.8 ± 5.5, were included between October 2011 and January 2016, and 384 of them were referred with an initial cancer treatment plan. This initial cancer treatment plan was changed in 64 patients (16.7%). In multivariate analysis, CGA domains associated with change in cancer treatment plan were cognitive impairment according to the MMSE score (p = 0.020), malnutrition according to the MNA score (p = 0.023), and low physical performance according to the Short Physical Performance Battery (p = 0.010). CONCLUSION: Cognition, malnutrition and low physical performance are significantly associated with change in cancer treatment plan in older adults with cancer. More studies are needed to evaluate their association with survival, treatment toxicity and quality of life. The role of physical performance should be specifically explored.

Use of comprehensive geriatric assessment (CGA) to define frailty in geriatric oncology: Searching for the best threshold. Cross-sectional study of 418 old patients with cancer evaluated in the Geriatric Frailty Clinic (G.F.C.) of Toulouse (France).

OBJECTIVES: A consensual and operational definition of frailty is necessary in geriatric oncology. While many studies have focused on geriatric syndromes evaluated in the comprehensive geriatric assessment (CGA) to select patients at higher risk of poor outcomes, few have compared CGA data with Fried's phenotype of frailty, the most consensual measurement of frailty in geriatrics. Our objective was to determine a threshold of impaired domains evaluated in CGA associated with Frailty status. METHODS: A cross-sectional study including all patients with cancer, evaluated from January 2011 to February 2016 at the Geriatric Frailty Clinic, Toulouse. A CGA was performed evaluating seven geriatric domains. Frailty was measured by Fried's phenotype to classify patients into three groups (robust/pre-frail/frail). We plotted a ROC curve to determine the threshold of impaired domains associated with frailty according to Fried. RESULTS: We included 418 patients aged 82.8 years (range 66-100 years). Thirty-three patients (7.9%) were robust, 155 (37.1%) pre-frail and 230 (55%) frail. There was a significant difference in ADL, IADL, nutrition, cognition and polypharmacy between the three groups (p < .001 for each domain). Frail patients had more impaired geriatric domains on CGA than pre-frail and robust patients (respectively 4.5 ±â€¯1.5, 2.8 ±â€¯1.6 and 2.1 ±â€¯1.2; p < .001). The threshold of 4 impaired geriatric domains associated with Fried's Frailty status was identified (Se 77.39%, Sp 67.55%). Area under the curve was 79.6%. CONCLUSION: The phenotype of frailty is associated with more impaired geriatric domains and a threshold of 4 altered domains could be used to detect frailty from CGA data.

Acetaminophen Safety: Risk of Mortality and Cardiovascular Events in Nursing Home Residents, a Prospective Study.

BACKGROUND: Acetaminophen is the most widely used analgesic today. A recent systematic review found increased adverse events and mortality at therapeutic dosage. Our aim was to challenge these results in a large sample of older adults living in nursing homes (NHs). DESIGN: Prospective study using data from the Impact of Educational and Professional Supportive Interventions on Nursing Home Quality Indicators project (IQUARE), a multicenter, individually tailored, nonrandomized controlled trial in NHs across southwestern France. SETTING/PARTICIPANTS: We studied data from 5429 participants living in 175 NHs (average age, 86.1 ± 8.1 years; 73.9% women). MEASUREMENTS: All prescriptions obtained at baseline were analyzed by a pharmacist for acetaminophen use as stand-alone or associated. Myocardial infarction (MI) and strokes were reported from participants' medical records at 18-month follow-up. Dates of death were obtained. Data collection was done through an online questionnaire at baseline and at 18 months by NH staff. Analyses were realized in our total population and a population matched on propensity score of acetaminophen intake. Six models were run for each outcome. RESULTS: A total of 2239 participants were taking, on average, 2352 ± 993 mg of acetaminophen daily. Results for mortality were: hazard ratio (HR) = 0.97 (95% confidence interval [CI] = 0.86-1.10). No associations between acetaminophen intake and the risk of mortality or MI were found. In one of our models, acetaminophen intake was associated with a significant increased risk of stroke in diabetic subjects (OR = 3.19; 95% CI = 1.25-8.18; P = .0157). [Correction added March 16, 2019, after first publication online. In the previous sentence, "HR" was mistakenly used instead of "OR".] CONCLUSION: Despite old age, polypharmacy, and polymorbidity, acetaminophen was found safe for most, but not all, of our NH study population. Pain management in NHs is a health priority, and acetaminophen remains a good therapeutic choice as a first-line analgesic. More studies are needed on older diabetic patients.