Vitamin D deficiency and SARS­CoV­2 infection: A retrospective case-Control study with big-data analysis covering March 2020 to March 2021.

BACKGROUND: Vitamin D may have immunomodulatory functions, and might therefore play a role in the pathogenesis of acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. However, no conclusive evidence exists regarding its impact on the prevalence of this infection, the associated course of disease, or prognosis. OBJECTIVE: To study the association between SARS-CoV-2 infection and vitamin D deficiency in patients attending a tertiary university hospital, and to examine the clinical course of infection and prognosis for these patients. METHODS: This non-interventional, retrospective study, which involved big-data analysis and employed artificial intelligence to capture data from free text in the electronic health records of patients diagnosed with SARS-CoV-2, was undertaken at a tertiary university hospital in Madrid, Spain, between March 2020 and March 2021. The variables recorded were vitamin D deficiency, sociodemographic and clinical characteristics, course of disease, and prognosis. RESULTS: Of the 143,157 patients analysed, 36,261 had SARS-CoV-2 infection (25.33%) during the study period, among whom 2,588 (7.14%) had a vitamin D deficiency. Among these latter patients, women (OR 1.45 [95%CI 1.33-1.57]), adults over 80 years of age (OR 2.63 [95%CI 2.38-2.91]), people living in nursing homes (OR 2.88 [95%CI 2.95-3.45]), and patients with walking dependence (OR 3.45 [95%CI 2.85-4.26]) appeared in higher proportion. After adjusting for confounding factors, a higher proportion of subjects with SARS-CoV-2 plus vitamin D deficiency required hospitalisation (OR 1.38 [95%CI 1.26-1.51]), and had a longer mean hospital stay (3.94 compared to 2.19 days in those with normal levels; P = 0.02). CONCLUSION: A low serum 25(OH) vitamin D concentration in patients with SARS-CoV-2 infection is significantly associated with a greater risk of hospitalisation and a longer hospital stay. Among such patients, higher proportions of institutionalised and dependent people over 80 years of age were detected.

Differences in the baseline characteristics, management and outcomes of patients with hip fractures depending on their pre-fracture place of residence: the Spanish National Hip Fracture Registry (RNFC) cohort.

PURPOSE: One in four hip fracture patients comes from an aged care facility. This study aimed to compare the characteristics of these subjects with their community-dwelling counterparts at baseline, during hospitalization and 1-month post-fracture. METHODS: We analyzed data from a cohort of older adults admitted with hip fractures to 75 Spanish hospitals, collected prospectively in the Spanish National Hip Fracture Registry between 2016 and 2018. We classified participants according to pre-fracture residence: community dwellers vs. aged care facilities residents. We collected demographic records at baseline, along with variables relating to in-hospital evolution and discharge to geriatric rehabilitation units. Patients or relatives were interviewed at 1-month follow-up. RESULTS: Out of 18,262 patients, 4,422 (24.2%) lived in aged care facilities. Aged care facilities residents were older (median age: 89 vs. 86 years), less mobile (inability to walk independently: 20.8% vs. 9.4%) and had more cognitive impairment (Pfeiffer's SPMSQ > 3, 75.3% vs. 34.8%). They were more likely to receive conservative treatment (5.4% vs. 2.0%) and less likely to be mobilized early (58.2% vs. 63.0%). At discharge, they received less vitamin D supplements (68.5% vs. 72.4%), less anti-osteoporotic medication (29.3% vs. 44.3%), and were referred to geriatric rehabilitation units less frequently (5.4% vs. 27.5%). One-month post-fracture, 45% of aged care facilities residents compared to 28% of community dwellers experienced a severe gait decline. Aged care facilities residents had a higher one-month mortality (10.6% vs. 6.8%). CONCLUSION: Hip fracture patients from aged care facilities are more vulnerable than their community-dwelling peers and are managed differently both during hospitalization and at discharge. Gait decline is disproportionately higher among those admitted from aged care.

Development of a new comprehensive preoperative risk score for predicting 1-year mortality in patients with hip fracture: the HULP-HF score. Comparison with 3 other risk prediction models.

PURPOSE: The aim of this study was to develop a new comprehensive preoperative risk score for predicting mortality during the first year after hip fracture (HF) and its comparison with 3 other risk prediction models. METHODS: All patients admitted consecutively with a fragility HF during 1 year in a co-managed orthogeriatric unit at a university hospital were assessed and followed for 1 year. Factors independently associated with 1-year mortality were used to create the HULP-HF (Hospital Universitario La Paz - Hip Fracture) score. The predictive validity, discrimination and calibration of the HULP-HF score, the American Society of Anesthesiologists (ASA) scale, the abbreviated Charlson comorbidity index (a-CCI) and the Nottingham Hip Fracture score (NHFS) were compared. Discriminative performance was assessed using the area under the curve (AUC) and calibration by the Hosmer-Lemeshow goodness-of-fit-test. RESULTS: 509 patients were included. 1-year mortality was 23.2%. The 8 independent mortality risk factors included in the HULP-HF score were age >85 years, baseline functional and cognitive impairment, low body mass index, heart disease, low hand-grip strength, anaemia on admission, and secondary hyperparathyroidism associated with vitamin D deficiency. The AUC was 0.79 in the HULP-HF score, 0.66 in the NHFS, 0.61 in the abbreviated CCI and 0.59 in the ASA scale. The HULP-HF score, the NHFS and the abbreviated CCI all presented good levels of calibration (p > 0.05). CONCLUSIONS: The HULP-HF score has a predictive capacity for 1-year mortality in HF patients slightly superior to that of other previously existing scores.

Handgrip strength predicts 1-year functional recovery and mortality in hip fracture patients.

OBJECTIVES: Muscle strength is a possible predictor of adverse events. It could have prognostic value in patients with hip fracture (HF). The aim of this study was to determine if handgrip strength is associated with functional impairment, readmissions, and mortality at one year in elderly patients with HF. DESIGN: A prospective observational study was carried out. It included a cohort of patients aged 65 years or older with a diagnosis of fragility HF, consecutively from January 2013 to February 2014 and seen in follow-up at one year. Statistical analysis was performed using SPSS v21 software. MAIN OUTCOME MEASURES: Five hundred and nine patients with a mean age of 85.4 ± 0.3 years were included, of whom 403 (79.2 %) were women. Clinical and functional outcomes, laboratory parameters and anthropometric measurements were collected. RESULTS: Of the total sample, 339 (66.6 %) had reduced handgrip strength, and these patients were older, more frequently institutionalized, had poorer functional and cognitive status, higher comorbidity, higher surgical risk, lower body mass index and a greater intra-hospital mortality (all p < 0.01). At one year, patients with lower handgrip strength had a major change in their ability to walk (32.7 % vs. 10.9 %, p < 0.001) and a higher mortality rate (30.4 % vs. 8.8 %, p < 0.001). However, in patients over 91 years of age, there was no association between lower handgrip strength and change in ability to walk. There were no differences in the number of readmissions. CONCLUSION: Low handgrip strength in elderly patients with HF predicts greater functional disability and higher long-term mortality.

Minimal clinically important decline in physical function over one year: EPOSA study.

BACKGROUND: The Australian/Canadian hand Osteoarthritis Index (AUSCAN) and the Western Ontario and McMaster Universities knee and hip Osteoarthritis Index (WOMAC) are the most commonly used clinical tools to manage and monitor osteoarthritis (OA). Few studies have as yet reported longitudinal changes in the AUSCAN index regarding the hand. While there are published data regarding WOMAC assessments of the hip and the knee, the two sites have always evaluated separately. The current study therefore sought to determine the minimal clinically important difference (MCID) in decline in the AUSCAN hand and WOMAC hip/knee physical function scores over 1 year using anchor-based and distribution-based methods. METHODS: The study analysed data collected by the European Project on Osteoarthritis, a prospective observational study investigating six adult cohorts with and without OA by evaluating changes in the AUSCAN and WOMAC physical function scores at baseline and 12-18 months later. Pain and stiffness scores, the performance-based grip strength and walking speed and health-related quality of life measures were used as the study's anchors. Receiver operating characteristic curves and distribution-based methods were used to estimate the MCID in the AUSCAN and WOMAC physical function scores; only the data of those participants who possessed paired (baseline and follow up-measures) AUSCAN and WOMAC scores were included in the analysis. RESULTS: Out of the 1866 participants who were evaluated, 1842 had paired AUSCAN scores and 1845 had paired WOMAC scores. The changes in the AUSCAN physical function score correlated significantly with those in the AUSCAN pain score (r = 0.31). Anchor- and distribution-based approaches converged identifying 4 as the MCID for decline in the AUSCAN hand physical function. Changes in the WOMAC hip/knee physical function score were significantly correlated with changes in both the WOMAC pain score (r = 0.47) and the WOMAC stiffness score (r = 0.35). The different approaches converged identifying two as the MCID for decline in the WOMAC hip/knee physical function. CONCLUSIONS: The most reliable MCID estimates of decline over 1 year in the AUSCAN hand and WOMAC hip/knee physical function scores were 4 and 2 points, respectively.

Within-Person Pain Variability and Mental Health in Older Adults With Osteoarthritis: An Analysis Across 6 European Cohorts.

Pain is a key symptom of osteoarthritis (OA) and has been linked to poor mental health. Pain fluctuates over time within individuals, but a paucity of studies have considered day-to-day fluctuations of joint pain in relation to affective symptoms in older persons with OA. This study investigated the relationship of pain severity as well as within-person pain variability with anxiety and depression symptoms in 832 older adults with OA who participated in the European Project on OSteoArthritis (EPOSA): a 6-country cohort study. Affective symptoms were examined with the Hospital Anxiety and Depression Scale, pain severity was assessed with the Western Ontario and McMaster Universities OA Index and the Australian/Canadian Hand Osteoarthritis Index, and intraindividual pain variability was measured using pain calendars assessed at baseline, 6, and 12 to 18 months. Age-stratified multiple linear regression analyses adjusted for relevant confounders showed that more pain was associated with more affective symptoms in older-old participants (74.1-85 years). Moreover, older-old participants experienced fewer symptoms of anxiety (ratio = .85, 95% confidence interval [CI], .77-.94), depression (ratio = .90, 95% CI, .82-.98), and total affective symptoms (ratio = .87, 95% CI, .79-.94) if their pain fluctuated more. No such association was evident in younger-old participants (65-74.0 years). These findings imply that stable pain levels are more detrimental to mental health than fluctuating pain levels in older persons. PERSPECTIVE: This study showed that more severe and stable joint pain levels were associated with anxiety and depressive symptoms in older persons with OA. These findings emphasize the importance of measuring pain in OA at multiple time points, because joint pain fluctuations may be an indicator for the presence of affective symptoms.

Baseline and pre-operative 1-year mortality risk factors in a cohort of 509 hip fracture patients consecutively admitted to a co-managed orthogeriatric unit (FONDA Cohort).

INTRODUCTION: The aim of this study was to determine the patient characteristics that predict 1-year mortality after a hip fracture (HF). METHODS: All patients admitted consecutively with fragility HF during 1 year in a co-managed orthogeriatric unit of a university hospital (FONDA cohort) were assesed. Baseline and admission demographic, clinical, functional, analytical and body-composition variables were collected in the first 72 h after admission. A protocol designed to minimize the consequences of the HF was applied. One year after the fracture patients or their carers were contacted by telephone to ascertain their vital status. RESULTS: A total of 509 patients with a mean age of 85.6 years were included. One-year mortality was 23.2%. The final multivariate model included 8 independent mortality risk factors: age >85 years, baseline functional impairment in basic activities of daily living, low body mass index, cognitive impairment, heart disease, low hand-grip strength, anaemia at admission, and secondary hyperparathyroidism associated with vitamin D deficiency. The association of several of these factors greatly increased mortality risk, with an OR (95% confidence interval [CI]) of 5.372 (3.227-8.806) in patients with 4 to 5 factors, and an OR (95% CI) of 11.097 (6.432-19.144) in those with 6 or more factors. CONCLUSIONS: In addition to previously known factors (such as age, impairment in basic activities of daily living, cognitive impairment, malnutrition and anaemia at admission), other factors, such as muscle strength and hyperparathyroidism associated with vitamin D deficiency, are associated with greater 1-year mortality after a HF.

Comprehensive geriatric assessment for identifying older people at risk of hip fracture: cross-sectional study with comparative group.

Background: Hip fracture (HF) is by far the most common serious fragility fracture. Its care is a major challenge to all healthcare systems. Aim: To determine whether there are characteristics of older people identified via comprehensive geriatric assessment (CGA) that help identify those with an increased risk of HF. Methods: The demographic, functional, cognitive and nutritional data of a cohort of patients admitted for acute HF were compared with those of a population cohort representing community-dwelling older people in the same urban district without HF. Bivariate analysis was performed on the variables in both the complete samples and in a subsample of age and sex paired subjects, followed by logistic regression analysis. Results: A total of 509 HF patients and 1315 community-dwelling older people were included. The HF patients were older and more frequently women and had more frequent disability and cognitive impairment, lower handgrip strength, lower body mass index (BMI) and a higher frequency of vitamin D deficiency compared with the community controls (P < 0.001). The variables most strongly associated with the presence of HF in the multivariate analysis, aside from age and female sex, were BMI<22 kg/m2 [odds ratio (OR) = 5.11], disability (OR = 4.32), muscle weakness (OR = 3.01), and vitamin D deficiency (OR = 2.13). Conclusions: There are easily obtained CGA determinants that are strongly associated with fragility HF. The detection of low weight, disability, malnutrition, muscle weakness, and vitamin D deficiency can help identify at-risk older people to implement prevention strategies.

Frecuencia de sarcopenia y características de los pacientes estudiados mediante criterios EWGSOP uniformes en estudios españoles / Fequency of sarcopenia and characteristics of the patients studied using uniform EWGSOP criteria in Spanish studies

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The Influence of Weather Conditions on Outdoor Physical Activity Among Older People With and Without Osteoarthritis in 6 European Countries.

BACKGROUND: Older adults with osteoarthritis (OA) often report that their disease symptoms are exacerbated by weather conditions. This study examines the association between outdoor physical activity (PA) and weather conditions in older adults from 6 European countries and assesses whether outdoor PA and weather conditions are more strongly associated in older persons with OA than in those without the condition. METHODS: The American College of Rheumatology classification criteria were used to diagnose OA. Outdoor PA was assessed using the LASA Physical Activity Questionnaire. Data on weather parameters were obtained from weather stations. RESULTS: Of the 2439 participants (65-85 years), 29.6% had OA in knee, hand and/or hip. Participants with OA spent fewer minutes in PA than participants without OA (Median = 42.9, IQR = 20.0 to 83.1 versus Median = 51.4, IQR = 23.6 to 98.6; P < .01). In the full sample, temperature (B = 1.52; P < .001) and relative humidity (B = -0.77; P < .001) were associated with PA. Temperature was more strongly associated with PA in participants without OA (B = 1.98; P < .001) than in those with the condition (B = 0.48; P = .47). CONCLUSIONS: Weather conditions are associated with outdoor PA in older adults in the general population. Outdoor PA and weather conditions were more strongly associated in older adults without OA than in their counterparts with OA.

How Hand Osteoarthritis, Comorbidity, and Pain Interact to Determine Functional Limitation in Older People: Observations From the European Project on OSteoArthritis Study.

OBJECTIVE: To examine the role of comorbidity and pain in the associations of hand osteoarthritis (OA) with self-reported and performance-based physical function in a general population of elderly persons. METHODS: We studied data from 2,942 participants ages 65-85 years in the European Project on OSteoArthritis, a collaborative observational study of 6 European cohorts (from Germany, Italy, The Netherlands, Spain, Sweden, and the UK). Outcome measures included self-reported physical function of the hands measured by the AUStralian/CANadian Osteoarthritis Hand Index (AUSCAN) for hand OA physical function subscale and performance-based grip strength measured using a strain gauge dynamometer. RESULTS: Comorbidity was not a confounder in the association of hand OA with self-reported and performance-based functional limitations, while the role of pain as a mediator was confirmed. Anxiety, depression, stroke, and osteoporosis were associated with AUSCAN scores reflecting more impairment. Depression and osteoporosis were associated with less grip strength. CONCLUSION: Although comorbidity was decidedly and independently associated with hand functional limitation, it had no effect on the relationship of hand OA with physical function. Hand OA was found to be associated with both self-reported and performance-based physical function impairment; the association was found to be partially mediated by pain, which reduced its impact.

Consumo de medicamentos en mayores de 65 años en Oporto (Portugal) y riesgo de prescripción de medicamentos potencialmente inapropiados / Consumption of drugs in over 65 in Porto (Portugal) and risk of potentially inappropriate medication prescribing

Objetivo: Conocer el consumo de medicamentos entre los mayores de un área de Oporto, determinar la prevalencia de la prescripción de medicamentos potencialmente inapropiados y analizar su asociación con la polimedicación y otros factores. Diseño: Estudio observacional transversal de base poblacional. Emplazamiento: Unidade de Saúde Familiar Rainha D. Amélia, Centro histórico de Oporto (Portugal). Participantes: Muestra de 747 personas representativa de la población de 65 años y más del área de referencia. Mediciones principales: Identificación de todos los medicamentos prescritos utilizando los registros electrónicos disponibles. Se definió polimedicación como el tratamiento simultáneo con 5 o más medicamentos, y medicación potencialmente inapropiada (MPI) como el uso de medicamentos considerados inadecuados según los criterios de Beers 2012. Se recogieron datos sociodemográficos, de diagnóstico y de utilización de servicios. Se utilizó la regresión logística para analizar la asociación de las distintas covariables con el uso de MPI. Resultados: El 89,2% (IC 95%: 87,6-92,0) de la población de estudio tenían prescrito, al menos, un medicamento. El 59,2% (IC 95%: 55,7-62,7) estaban polimedicados. El 37,0% (IC 95%: 33,5-40,5) consumían MPI. La prescripción de MPI se asocia a mayor edad (OR = 1,02 [IC 95%: 1,00-1,05]), polimedicación (OR = 4,45 [IC 95%: 3,12-6,36]), depresión/ansiedad (OR = 2,18 [IC 95%: 1,36-3,51]) y artrosis (OR = 1,64 [IC 95%: 1,11-2,42]). Conclusiones: La prescripción de fármacos, polimedicación y uso de MPI son muy elevados en la población portuguesa estudiada. La polimedicación es el factor más importante asociado al consumo de MPI. La prescripción de ansiolíticos, antidepresivos o antiinflamatorios debe hacerse con mucho cuidado ante el riesgo de los MPI (AU)

Objective: To determine medication consumption in the older people from a central area of Oporto; determine the prevalence of prescription of Potentially Inappropriate Medication and to analyse the polypharmacy and other important connected factors. Design, setting and patients: Cross-sectional study with a sample of 747 patients older than 64 years, who were attended in a Primary care health centre: USF Rainha D. Amélia, Oporto, Portugal. Main outcome measures: identification of all medication prescribed from electronic registers. Polypharmacy was considered more than 5 medication prescribed and Potential Inappropriate Medication was identified by Beers criteria 2012. The socio-demographic factors, diagnosis and health care services use were registered too. Logistic regression analysis was used to determine the association between co-variables. ;Results There were 89.2% (95% CI: 87.6-92.0) of the studied population with at least one prescription. The polypharmacy was present at 59.2% (95% CI: 55.7-62.7) of people. The Potential Inappropriate Medication was present in 37.0% (95% CI: 33.5-40.5) of the cases. The Potential Inappropriate Medication was related with increasing age [OR = 1.02 (95% CI: 1.00-1.05)], polypharmacy [OR = 4.45 (95% CI: 3.12-6.36)], and be diagnosed with depression/anxiety [OR = 2.18 (95% CI: 1.36-3.51)] and/or arthrosis [OR = 1.64 (95% CI: 1.11-2.42)]. Conclusion: The rate of medication prescription, polypharmacy and the prescription of Potentially Inappropriate Medication are very high in Portuguese population studied. The polypharmacy is the most important factor related with this potential inappropriate medication. The physician need to have carefully with prescription of the anxiolytic and anti-inflammatory pain drugs (AU)

Prevalence of sarcopenia in acute hip fracture patients and its influence on short-term clinical outcome.

AIM: Current international criteria provide standardized procedures to diagnose sarcopenia in older people. However, to date few data exist on patients with acute disease. The present study was carried out to determine the frequency of sarcopenia in acute hip fracture patients, and its association with their baseline characteristics and prognosis during hospitalization. METHODS: Data were collected from 509 consecutive patients hospitalized for hip fracture. The European Working Group on Sarcopenia in Older People Criteria for sarcopenia were applied in the first 72 h. Muscle mass was measured by electrical bioimpedance and grip strength by hydraulic dynamometer. Clinical, functional and cognitive characteristics were assessed at baseline and hospital discharge, and their association with the presence of sarcopenia was studied. RESULTS: A total of 479 patients (94%) met the inclusion criteria. The mean age was 85.3 (SD 6.8 years). The frequency of sarcopenia was 17.1% (12.4% in men, 18.3% in women). Sarcopenia was associated with residence in nursing homes (30.5% vs 19.6%, P = 0.030), older age (86.8, SD 6.2 vs 85.1, SD 6.9 years, P = 0.038), and lower body mass index (23.1, SD 3.6 vs 25.6, SD 4.23, P < 0.001). In the multivariate analysis, only low body mass index was predictive of sarcopenia (OR 0.85, 95% CI 0.80-0.91). Sarcopenia was associated with worse functional prognosis at discharge in the crude analysis (OR 1.88, 95% CI 1.15-3.07), but not in the multivariate analysis (OR 1.68, 95% CI 0.99-2.84). CONCLUSIONS: Sarcopenia was detected in almost one of five acute hip fracture patients and was associated with lower body mass index, but an association with worse prognosis at discharge could not be confirmed. Geriatr Gerontol Int 2016; 16: 1021-1027.

[Consumption of drugs in over 65 in Porto (Portugal) and risk of potentially inappropriate medication prescribing]. / Consumo de medicamentos en mayores de 65 años en Oporto (Portugal) y riesgo de prescripción de medicamentos potencialmente inapropiados.

OBJECTIVE: To determine medication consumption in the older people from a central area of Oporto; determine the prevalence of prescription of Potentially Inappropriate Medication and to analyse the polypharmacy and other important connected factors. DESIGN, SETTING AND PATIENTS: Cross-sectional study with a sample of 747 patients older than 64 years, who were attended in a Primary care health centre: USF Rainha D. Amélia, Oporto, Portugal. MAIN OUTCOME MEASURES: identification of all medication prescribed from electronic registers. Polypharmacy was considered more than 5 medication prescribed and Potential Inappropriate Medication was identified by Beers criteria 2012. The socio-demographic factors, diagnosis and health care services use were registered too. Logistic regression analysis was used to determine the association between co-variables. RESULTS: There were 89.2% (95%CI: 87.6-92.0) of the studied population with at least one prescription. The polypharmacy was present at 59.2% (95%CI: 55.7-62.7) of people. The Potential Inappropriate Medication was present in 37.0% (95%CI: 33.5-40.5) of the cases. The Potential Inappropriate Medication was related with increasing age [OR=1.02 (95%CI: 1.00-1.05)], polypharmacy [OR=4.45 (95%CI: 3.12-6.36)], and be diagnosed with depression/anxiety [OR=2.18 (95%CI: 1.36-3.51)] and/or arthrosis [OR=1.64 (95%CI: 1.11-2.42)]. CONCLUSION: The rate of medication prescription, polypharmacy and the prescription of Potentially Inappropriate Medication are very high in Portuguese population studied. The polypharmacy is the most important factor related with this potential inappropriate medication. The physician need to have carefully with prescription of the anxiolytic and anti-inflammatory pain drugs.

Osteoarthritis and frailty in elderly individuals across six European countries: results from the European Project on OSteoArthritis (EPOSA).

BACKGROUND: Osteoarthritis (OA) is the most common cause of disability in the elderly. Clinical frailty is associated with high mortality, but few studies have explored the relationship between OA and frailty. The objective of this study was to consider the association between OA and frailty/pre-frailty in an elderly population comprised of six European cohorts participating in the EPOSA project. METHODS: Longitudinal study using baseline data and first follow-up waves, from EPOSA; 2,455 individuals aged 65-85 years were recruited from pre-existing population-based cohorts in Germany, Italy, the Netherlands, Spain, Sweden and the United Kingdom. Data were collected on clinical OA at any site (hand, knee or hip), based on the clinical classification criteria developed by the American College of Rheumatology (ACR). Frailty was defined according to Fried's criteria. The covariates considered were age, gender, educational level, obesity and country. We used multinomial logistic regression to analyse the associations between OA, frailty/pre-frailty and other covariates. RESULTS: The overall prevalence of clinical OA at any site was 30.4 % (95 % CI:28.6-32.2); frailty was present in 10.2 % (95 % CI:9.0-11.4) and pre-frailty in 51.0 % (95 % CI:49.0-53.0). The odds of frailty was 2.96 (95 % CI:2.11-4.16) and pre-frailty 1.54 (95 % CI:1.24-1.91) as high among OA individuals than those without OA. The association remained when Knee OA, hip OA or hand OA were considered separately, and was stronger in those with increasing number of joints. CONCLUSIONS: Clinical OA is associated with frailty and pre-frailty in older adults in European countries. This association might be considered when designing appropriate intervention strategies for OA management.

The Influence of Weather Conditions on Joint Pain in Older People with Osteoarthritis: Results from the European Project on OSteoArthritis.

OBJECTIVE: This study examined whether daily weather conditions, 3-day average weather conditions, and changes in weather conditions influence joint pain in older people with osteoarthritis (OA) in 6 European countries. METHODS: Data from the population-based European Project on OSteoArthritis were used. The American College of Rheumatology classification criteria were used to diagnose OA in older people (65-85 yrs). After the baseline interview, at 6 months, and after the 12-18 months followup interview, joint pain was assessed using 2-week pain calendars. Daily values for temperature, precipitation, atmospheric pressure, relative humidity, and wind speed were obtained from local weather stations. Multilevel regression modelling was used to examine the pain-weather associations, adjusted for several confounders. RESULTS: The study included 810 participants with OA in the knee, hand, and/or hip. After adjustment, there were significant associations of joint pain with daily average humidity (B = 0.004, p < 0.01) and 3-day average humidity (B = 0.004, p = 0.01). A significant interaction effect was found between daily average humidity and temperature on joint pain. The effect of humidity on pain was stronger in relatively cold weather conditions. Changes in weather variables between 2 consecutive days were not significantly associated with reported joint pain. CONCLUSION: The associations between pain and daily average weather conditions suggest that a causal relationship exist between joint pain and weather variables, but the associations between day-to-day weather changes and pain do not confirm causation. Knowledge about the relationship between joint pain in OA and weather may help individuals with OA, physicians, and therapists to better understand and manage fluctuations in pain.

Frailty prevalence and slow walking speed in persons age 65 and older: implications for primary care.

BACKGROUND: Frailty in the elderly increases their vulnerability and leads to a greater risk of adverse events. According to various studies, the prevalence of the frailty syndrome in persons age 65 and over ranges between 3% and 37%, depending on age and sex. Walking speed in itself is considered a simple indicator of health status and of survival in older persons. Detecting frailty in primary care consultations can help improve care of the elderly, and walking speed may be an indicator that could facilitate the early diagnosis of frailty in primary care. The objective of this work was to estimate frailty-syndrome prevalence and walking speed in an urban population aged 65 years and over, and to analyze the relationship between the two indicators from the perspective of early diagnosis of frailty in the primary care setting. METHODS: Population cohort of persons age 65 and over from two urban neighborhoods in northern Madrid (Spain). Cross-sectional analysis. Bivariate and multivariate analysis with binary logistic regression to study the variables associated with frailty. Different cut-off points between 0.4 and 1.4 m/s were used to study walking speed in this population. The relationship between frailty and walking speed was analyzed using likelihood ratios. RESULTS: The study sample comprised 1,327 individuals age 65 and older with mean age 75.41 ± 7.41 years; 53.4% were women. Estimated frailty in the study population was 10.5% [95% CI: 8.9-12.3]. Frailty increased with age (OR = 1.14; 95% CI: 1.10-1.19) and was associated with poor self-rated health (OR = 2.52; 95% CI: 1.43-4.44), number of drugs prescribed (OR = 1.17; 95% CI: 1.08-1.26) and disability (OR = 6.58; 95% CI: 3.92-11.05). Walking speed less than 0.8 m/s was found in 42.6% of cases and in 56.4% of persons age 75 and over. Walking speed greater than 0.9 m/s ruled out frailty in the study sample. Persons age 75 and older with walking speed <0.8 m/s are at particularly high risk of frailty (32.1%). CONCLUSIONS: Frailty-syndrome prevalence is high in persons aged 75 and over. Detection of walking speed <0.8 m/s is a simple approach to the diagnosis of frailty in the primary care setting.