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1.
Phys Rev Lett ; 130(23): 237103, 2023 Jun 09.
Artigo em Inglês | MEDLINE | ID: mdl-37354403

RESUMO

We calculate the average number of critical points N[over ¯] of the energy landscape of a many-body system with disordered two-body interactions and a weak on-site potential. We find that introducing a weak nonlinear on-site potential dramatically increases N[over ¯] to exponential in system size and give a complete picture of the organization of critical points. Our results extend solvable spin-glass models to physically more realistic models and are of relevance to glassy systems, nonlinear oscillator networks, and many-body interacting systems.


Assuntos
Vidro , Simulação por Computador
2.
BMC Psychiatry ; 22(1): 474, 2022 07 15.
Artigo em Inglês | MEDLINE | ID: mdl-35841086

RESUMO

BACKGROUND: Although psychomotor symptoms are associated with the clinical symptomatology of depression, they are rarely assessed and standardized clinical evaluation tools are lacking. Psychomotor retardation is sometimes assessed through direct patient observations by clinicians or through a clinical observation grid, in the absence of a standardized psychomotor assessment. In this pilot study, we evaluated the feasibility of standardized psychomotor examination of patients with major depressive disorder (MDD) and detailed a psychomotor semiology in these patients. METHODS: We used a standardized psychomotor assessment to examine 25 patients with MDD and 25 age- and sex-matched healthy controls (HC) and compared their psychomotor profiles. Using standardized tests, we assessed muscle tone and posture, gross motor skills, perceptual-motor skills, and body image/organization. Clinical assessments of depressive symptoms (levels of psychomotor retardation, anxiety, and self-esteem) comprised this detailed psychomotor examination. RESULTS: All participants were examined using the standardized psychomotor assessment. The main results of the psychomotor examination highlighted low body image of MDD participants (p < 0.001). Significant differences between groups were found in passive muscle tone, posture, emotional control, jumping, manual dexterity, walking, and praxis. Among these psychomotor variables, body image, passivity, jumping and rhythm scores predicted an MDD diagnosis. CONCLUSIONS: Beyond the psychomotor retardation known to be present in MDD patients, this examination revealed an entire psychomotor symptomatology characterized by elevated muscle tone, poor body image associated with poor self-esteem, slowness in global motor skills and manual praxis, and poor rhythmic adaptation. In light of these results, we encourage clinicians to consider using a standardized tool to conduct detailed psychomotor examination of patients with depressive disorders. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT04031937 , 24/07/2019.


Assuntos
Transtorno Depressivo Maior , Transtornos Psicomotores , Estudos de Casos e Controles , Transtorno Depressivo Maior/fisiopatologia , Feminino , Humanos , Masculino , Projetos Piloto , Transtornos Psicomotores/diagnóstico , Autoimagem
3.
Rev Epidemiol Sante Publique ; 69(2): 78-87, 2021 Apr.
Artigo em Francês | MEDLINE | ID: mdl-33707007

RESUMO

BACKGROUND: To recreate the in-hospital healthcare pathway for patients treated with coronary angiography or percutaneous coronary intervention, we linked the interventional cardiology registry (ACIRA) and the pseudonymized French hospital medical information system database (PMSI) in the Aquitaine region. The objective of this study was to develop and validate a deterministic merging algorithm between these exhaustive and complementary databases. METHODS: After a pre-treatment phase of the databases to standardize the 11 identified linking variables, a deterministic linking algorithm was developed on ACIRA hospital stays between December 2011 and December 2014 in nine interventional cardiology centers as well as the data from the consolidated PMSI databases of the Aquitaine region from 2011 to 2014. Merging was carried out through 12 successive steps, the first consisting in strict linking of the 11 variables. The performance of the algorithm was analyzed in terms of sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV). Strategies complementary to the initial algorithm (change in the order of variables and base preprocessing) were tested. Comparative analysis of merged/unmerged patients explored potential causes of mismatch. RESULTS: The algorithm found 97.2% of the 31,621 ACIRA stays to have sensitivity of 99.9% (95% CI [99.9; 99.9]), specificity of 97.9% (95% CI [97.7; 98.1]), PPV of 99.9% (95% CI [99.9; 99.9]) and NPV of 96.9% (95% CI [96.7; 97.1]). Complementary strategies did not yield better results. The unmerged patients were older, and hospitalized mostly in 2012 in two interventional cardiology centers. CONCLUSION: This study underscored the feasibility and validity of an indirect deterministic pairing to routinely link a registry of practices using hospital data to pseudonymized medico-administrative databases. This method, which can be extrapolated to other health events leading to hospitalization, renders it possible to effectively reconstruct patients' hospital healthcare pathway.


Assuntos
Cardiologia , Hospitalização , Bases de Dados Factuais , Hospitais , Humanos , Sistema de Registros
4.
Osteoporos Int ; 31(7): 1283-1290, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32020264

RESUMO

We investigated the factors associated with readiness for initiating osteoporosis treatment in women at high risk of fracture. We found that women in the contemplative stage were more likely to report previously being told having osteoporosis or osteopenia, acknowledge concern about osteoporosis, and disclose prior osteoporosis treatment. INTRODUCTION: Understanding factors associated with reaching the contemplative stage of readiness to initiate osteoporosis treatment may inform the design of behavioral interventions to improve osteoporosis treatment uptake in women at high risk for fracture. METHODS: We measured readiness to initiate osteoporosis treatment using a modified form of the Weinstein Precaution Adoption Process Model (PAPM) among 2684 women at high risk of fracture from the Activating Patients at Risk for OsteoPOroSis (APROPOS) clinical trial. Pre-contemplative participants were those who self-classified in the unaware and unengaged stages of PAPM (stages 1 and 2). Contemplative participants were those in the undecided, decided not to act, or decided to act stages of PAPM (stages 3, 4, and 5). Using multivariable logistic regression, we evaluated participant characteristics associated with levels of readiness to initiate osteoporosis treatment. RESULTS: Overall, 24% (N = 412) self-classified in the contemplative stage of readiness to initiate osteoporosis treatment. After adjusting for age, race, education, health literacy, and major osteoporotic fracture in the past 12 months, contemplative women were more likely to report previously being told they had osteoporosis or osteopenia (adjusted odds ratio [aOR] (95% CI) 11.8 (7.8-17.9) and 3.8 (2.5-5.6), respectively), acknowledge concern about osteoporosis (aOR 3.5 (2.5-4.9)), and disclose prior osteoporosis treatment (aOR 4.5 (3.3-6.3)) than women who self-classified as pre-contemplative. CONCLUSIONS: For women at high risk for future fractures, ensuring women's recognition of their diagnosis of osteoporosis/osteopenia and addressing their concerns about osteoporosis are critical components to consider when attempting to influence stage of behavior transitions in osteoporosis treatment.


Assuntos
Doenças Ósseas Metabólicas , Osteoporose , Fraturas por Osteoporose , Escolaridade , Feminino , Humanos , Lactente , Modelos Logísticos , Osteoporose/tratamento farmacológico , Fraturas por Osteoporose/etiologia , Fraturas por Osteoporose/prevenção & controle , Fatores de Risco
5.
J Endocrinol Invest ; 43(11): 1613-1622, 2020 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-32385851

RESUMO

PURPOSE: Cushing's disease (CD) is associated with significant clinical burden, increased mortality risk, and impaired health-related quality of life (HRQoL). This analysis explored the effect of long-acting pasireotide on clinical signs of hypercortisolism and HRQoL in a large subset of patients with CD. METHODS: In this phase III study (clinicaltrials.gov: NCT01374906), 150 adults with CD and a mean urinary free cortisol (mUFC) level between 1.5 and 5.0 times the upper limit of normal (ULN) started long-acting pasireotide 10 or 30 mg every 28 days with dose increases/decreases permitted based on mUFC levels/tolerability (minimum/maximum dose: 5/40 mg). Changes in clinical signs of hypercortisolism and HRQoL were assessed over 12 months of treatment and were stratified by degree of mUFC control for each patient. RESULTS: Patients with controlled mUFC at month 12 (n = 45) had the greatest improvements from baseline in mean systolic (- 8.4 mmHg [95% CI - 13.9, - 2.9]) and diastolic blood pressure (- 6.0 mmHg [- 10.0, - 2.0]). Mean BMI, weight, and waist circumference improved irrespective of mUFC control. Significant improvements in CushingQoL total score of 5.9-8.3 points were found at month 12 compared with baseline, irrespective of mUFC control; changes were driven by improvements in physical problem score, with smaller improvements in psychosocial score. CONCLUSIONS: Long-acting pasireotide provided significant improvements in clinical signs and HRQoL over 12 months of treatment, which, in some cases, occurred regardless of mUFC control. Long-acting pasireotide represents an effective treatment option and provides clinical benefit in patients with CD. CLINICAL TRIAL REGISTRATION NUMBER: NCT01374906.


Assuntos
Hipersecreção Hipofisária de ACTH/tratamento farmacológico , Qualidade de Vida , Somatostatina/análogos & derivados , Adulto , Idoso , Pressão Sanguínea/efeitos dos fármacos , Síndrome de Cushing/tratamento farmacológico , Síndrome de Cushing/etiologia , Síndrome de Cushing/metabolismo , Síndrome de Cushing/fisiopatologia , Preparações de Ação Retardada/uso terapêutico , Feminino , Humanos , Hidrocortisona/urina , Masculino , Pessoa de Meia-Idade , Hipersecreção Hipofisária de ACTH/complicações , Hipersecreção Hipofisária de ACTH/metabolismo , Hipersecreção Hipofisária de ACTH/fisiopatologia , Somatostatina/uso terapêutico , Resultado do Tratamento
6.
Osteoarthritis Cartilage ; 27(12): 1746-1754, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-31404657

RESUMO

OBJECTIVE: To evaluate racial and ethnic disparities in utilization of total knee arthroplasty (TKA) in relation to demographic, health, and socioeconomic status variables. DESIGN: Prospective study of 102,767 Women's Health Initiative postmenopausal women initially aged 50-79, examining utilization rates of primary TKA between non-Hispanic Black/African American, non-Hispanic White, and Hispanic/Latina women (hereafter referred to as Black, White, and Hispanic). A total of 8,942 Black, 3,405 Hispanic, and 90,420 White women with linked Medicare claims data were followed until time of TKA, death, or transition from fee-for-service coverage. Absolute disparities were determined using utilization rates by racial/ethnic group and relative disparities quantified using multivariable hazards models in adjusting for age, arthritis, joint pain, mobility disability, body mass index, number of comorbidities, income, education, neighborhood socioeconomic status (SES), and geographic region. RESULTS: TKA utilization was higher among White women (10.7/1,000 person-years) compared to Black (8.5/1,000 person-years) and Hispanic women (7.6/1,000 person-years). Among women with health indicators for TKA including diagnosis of arthritis, moderate to severe joint pain, and mobility disability, Black and Hispanic women were significantly less likely to undergo TKA after adjusting for age [Black: HR (95% confidence interval) = 0.70 (0.63-0.79); Hispanic: HR = 0.58 (0.44-0.77)]. Adjustment for SES modestly attenuated the measured disparity, but significant differences remained [Black: HR = 0.75 (0.67-0.89); Hispanic: HR = 0.65 (0.47-0.89)]. CONCLUSIONS: Compared to White women, Black and Hispanic women were significantly less likely to undergo TKA after considering need and appropriateness for TKA and SES. Further investigation into personal-level and provider-level factors that may explain these disparities is warranted.


Assuntos
Artralgia/cirurgia , Artrite Reumatoide/cirurgia , Artroplastia do Joelho/estatística & dados numéricos , Etnicidade/estatística & dados numéricos , Disparidades em Assistência à Saúde/etnologia , Limitação da Mobilidade , Osteoartrite do Joelho/cirurgia , Negro ou Afro-Americano/estatística & dados numéricos , Idoso , Artralgia/epidemiologia , Artrite Reumatoide/epidemiologia , Feminino , Hispânico ou Latino/estatística & dados numéricos , Humanos , Medicare , Pessoa de Meia-Idade , Osteoartrite do Joelho/epidemiologia , Modelos de Riscos Proporcionais , Classe Social , Estados Unidos/epidemiologia , População Branca/estatística & dados numéricos , Mulheres
7.
Osteoarthritis Cartilage ; 26(8): 1038-1044, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29758352

RESUMO

OBJECTIVE: To examine associations of high-sensitivity C-reactive protein (CRP) levels and polygenic CRP genetic risk scores (GRS) with risk of end-stage hip or knee osteoarthritis (OA), defined as incident total hip (THR) or knee replacement (TKR) for OA. DESIGN: This study included a cohort of postmenopausal white, African American, and Hispanic women from the Women's Health Initiative. Women were followed from baseline to date of THR or TKR, death, or December 31, 2014. Medicare claims data identified THR and TKR. Hs-CRP and genotyping data were collected at baseline. Three CRP GRS were constructed: 1) a 4-SNP GRS comprised of genetic variants representing variation in the CRP gene among European populations; 2) a multilocus 18-SNP GRS of genetic variants significantly associated with CRP levels in a meta-analysis of genome-wide association studies; and 3) a 5-SNP GRS of genetic variants significantly associated with CRP levels among African American women. RESULTS: In analyses conducted separately among each race and ethnic group, there were no significant associations of ln hs-CRP with risk of THR or TKR, after adjusting for age, body mass index, lifestyle characteristics, chronic diseases, hormone therapy use, and non-steroidal anti-inflammatory drug use. CRP GRS were not associated with risk of THR or TKR in any ethnic group. CONCLUSIONS: Serum levels of ln hs-CRP and genetically-predicted CRP levels were not associated with risk of THR or TKR for OA among a diverse cohort of women.


Assuntos
Artroplastia de Quadril/estatística & dados numéricos , Artroplastia do Joelho/estatística & dados numéricos , Proteína C-Reativa/genética , Osteoartrite do Quadril/genética , Osteoartrite do Joelho/genética , Proteína C-Reativa/análise , Feminino , Predisposição Genética para Doença/epidemiologia , Predisposição Genética para Doença/genética , Estudo de Associação Genômica Ampla , Humanos , Osteoartrite do Quadril/sangue , Osteoartrite do Quadril/etiologia , Osteoartrite do Quadril/cirurgia , Osteoartrite do Joelho/sangue , Osteoartrite do Joelho/etiologia , Osteoartrite do Joelho/cirurgia , Polimorfismo de Nucleotídeo Único/genética , Grupos Raciais/genética , Grupos Raciais/estatística & dados numéricos , Fatores de Risco
8.
Gesundheitswesen ; 80(2): 101-104, 2018 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-27144713

RESUMO

We report on 5 years of hands-on experience with the inclusion of peers as recovery companions in the psychiatric teams at Klinikum Bremerhaven-Reinkenheide. It was our aim to offer those affected the possibility of professional inclusion into peer support and organize our department more strongly in line with recovery principles as result of their work. Currently, seven peer support people are permanent employees at our department. Their salaries are covered by the nursing budget. We discuss the preconditions of our model, implementation of the program, changes that occurred, but also problems that arose.


Assuntos
Grupo Associado , Psiquiatria , Relatório de Pesquisa , Alemanha , Salários e Benefícios
9.
Osteoporos Int ; 28(12): 3495-3500, 2017 12.
Artigo em Inglês | MEDLINE | ID: mdl-28861636

RESUMO

In this study, we report that self-perception of fracture risk captures some aspect of fracture risk not currently measured using conventional fracture prediction tools and is associated with improved medication uptake. It suggests that adequate appreciation of fracture risk may be beneficial and lead to greater healthcare engagement and treatment. INTRODUCTION: This study aimed to assess how well self-perception of fracture risk, and fracture risk as estimated by the fracture prediction tool FRAX, related to fracture incidence and uptake and persistence of anti-osteoporosis medication among women participating in the Global Longitudinal study of Osteoporosis in Women (GLOW). METHODS: GLOW is an international cohort study involving 723 physician practices across 10 countries in Europe, North America and Australia. Aged ≥ 55 years, 60,393 women completed baseline questionnaires detailing medical history, including co-morbidities, fractures and self-perceived fracture risk (SPR). Annual follow-up included self-reported incident fractures and anti-osteoporosis medication (AOM) use. We calculated FRAX risk without bone mineral density measurement. RESULTS: Of the 39,241 women with at least 1 year of follow-up data, 2132 (5.4%) sustained an incident major osteoporotic fracture over 5 years of follow-up. Within each SPR category, risk of fracture increased as the FRAX categorisation of risk increased. In GLOW, only 11% of women with a lower baseline SPR were taking AOM at baseline, compared with 46% of women with a higher SPR. AOM use tended to increase in the years after a reported fracture. However, women with a lower SPR who were fractured still reported lower AOM rates than women with or without a fracture but had a higher SPR. CONCLUSIONS: These results suggest that SPR captures some aspect of fracture risk not currently measured using conventional fracture prediction tools and is also associated with improved medication uptake.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Fraturas por Osteoporose/etiologia , Autoimagem , Idoso , Conservadores da Densidade Óssea/uso terapêutico , Comorbidade , Uso de Medicamentos/estatística & dados numéricos , Feminino , Seguimentos , Humanos , Incidência , Adesão à Medicação/psicologia , Adesão à Medicação/estatística & dados numéricos , Pessoa de Meia-Idade , Osteoporose Pós-Menopausa/tratamento farmacológico , Osteoporose Pós-Menopausa/epidemiologia , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/prevenção & controle , Fraturas por Osteoporose/psicologia , Medição de Risco/métodos , Inquéritos e Questionários
10.
Clin Endocrinol (Oxf) ; 85(2): 216-22, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-26928716

RESUMO

OBJECTIVE: Previous studies have reported recovery of secondary adrenal insufficiency (SAI) in patients with pituitary disorders, generally immediately after pituitary surgery; however, data regarding recovery of long-term SAI are lacking. We conducted a study to assess the longer term recovery rate of SAI in patients with pituitary disorders. METHODS: We identified all SAI patients in the Halifax Neuropituitary Database from 1 November 2005 to 30 September 2014, who had required glucocorticoid therapy for ≥3 months, and had a minimum follow-up of 6 months. Patients with ACTH-secreting adenomas, those receiving glucocorticoids only in the routine peri-operative period for pituitary surgery and those on glucocorticoids for nonpituitary conditions were excluded. SAI was defined as either basal serum cortisol < 130 nm and/or a subnormal cortisol response to ACTH-(1-24) stimulation test or insulin tolerance test response. RESULTS: Fifty-one patients fulfilled the criteria. Nine (17·6%) patients had complete recovery of SAI over a median of 20 months (range: 8-51) after initiating glucocorticoid replacement. Patients with smaller tumour size had increased likelihood of hypothalamic-pituitary-adrenal (HPA) axis recovery, whereas those with secondary hypogonadism or growth hormone deficiency were less likely to recover. Those with initial cortisol >175 nm had an almost one in two chance of recovery. CONCLUSION: Results from our study show that approximately one in six patients with SAI recover adrenal function, even up to 5 years after diagnosis. We recommend that patients with SAI undergo regular testing to assess recovery in order to prevent unnecessary glucocorticoid therapy.


Assuntos
Insuficiência Adrenal/fisiopatologia , Hipopituitarismo/complicações , Sistema Hipófise-Suprarrenal/fisiopatologia , Recuperação de Função Fisiológica , Adolescente , Insuficiência Adrenal/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Glucocorticoides/uso terapêutico , Humanos , Hidrocortisona/sangue , Masculino , Pessoa de Meia-Idade , Sistema de Registros , Estudos Retrospectivos , Fatores de Tempo , Adulto Jovem
11.
Climacteric ; 18(6): 859-66, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26517583

RESUMO

OBJECTIVE: To describe self-reported menopausal symptom priorities and their association with demographics and other symptoms among participants in an intervention trial for vasomotor symptoms (VMS). METHODS: Cross-sectional study embedded in the MsFLASH 02 trial, a three-by-two factorial design of yoga vs. exercise vs. usual activity and omega-3-fatty acid vs. placebo. At baseline, women (n = 354) completed hot flush diaries, a card sort task to prioritize symptoms they would most like to alleviate, and standardized questionnaires. RESULTS: The most common symptom priorities were: VMS (n = 322), sleep (n = 191), concentration (n = 140), and fatigue (n = 116). In multivariate models, women who chose VMS as their top priority symptom (n = 210) reported significantly greater VMS severity (p = 0.004) and never smoking (p = 0.012), and women who chose sleep as their top priority symptom (n = 100) were more educated (p ≤ 0.001) and had worse sleep quality (p < 0.001). ROC curves identified sleep scale scores that were highly predictive of ranking sleep as a top priority symptom. CONCLUSIONS: Among women entering an intervention trial for VMS and with relatively low prevalence of depression and anxiety, VMS was the priority symptom for treatment. A card sort may be a valid tool for quickly assessing symptom priorities in clinical practice and research.


Assuntos
Transtornos Cognitivos/terapia , Fadiga/terapia , Fogachos/terapia , Menopausa , Preferência do Paciente , Transtornos do Sono-Vigília/terapia , Adulto , Área Sob a Curva , Atenção , Estudos Transversais , Exercício Físico/fisiologia , Ácidos Graxos Ômega-3/uso terapêutico , Feminino , Humanos , Pessoa de Meia-Idade , Curva ROC , Inquéritos e Questionários , Yoga
12.
Osteoporos Int ; 25(1): 85-95, 2014 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-23884437

RESUMO

UNLABELLED: Accurate patient risk perception of adverse health events promotes greater autonomy over, and motivation towards, health-related lifestyles. INTRODUCTION: We compared self-perceived fracture risk and 3-year incident fracture rates in postmenopausal women with a range of morbidities in the Global Longitudinal study of Osteoporosis in Women (GLOW). METHODS: GLOW is an international cohort study involving 723 physician practices across ten countries (Europe, North America, Australasia); 60,393 women aged ≥55 years completed baseline questionnaires detailing medical history and self-perceived fracture risk. Annual follow-up determined self-reported incident fractures. RESULTS: In total 2,945/43,832 (6.8%) sustained an incident fracture over 3 years. All morbidities were associated with increased fracture rates, particularly Parkinson's disease (hazard ratio [HR]; 95% confidence interval [CI], 3.89; 2.78-5.44), multiple sclerosis (2.70; 1.90-3.83), cerebrovascular events (2.02; 1.67-2.46), and rheumatoid arthritis (2.15; 1.53-3.04) (all p < 0.001). Most individuals perceived their fracture risk as similar to (46%) or lower than (36%) women of the same age. While increased self-perceived fracture risk was strongly associated with incident fracture rates, only 29% experiencing a fracture perceived their risk as increased. Under-appreciation of fracture risk occurred for all morbidities, including neurological disease, where women with low self-perceived fracture risk had a fracture HR 2.39 (CI 1.74-3.29) compared with women without morbidities. CONCLUSIONS: Postmenopausal women with morbidities tend to under-appreciate their risk, including in the context of neurological diseases, where fracture rates were highest in this cohort. This has important implications for health education, particularly among women with Parkinson's disease, multiple sclerosis, or cerebrovascular disease.


Assuntos
Atitude Frente a Saúde , Fraturas por Osteoporose/psicologia , Autoimagem , Idoso , Idoso de 80 Anos ou mais , Doença Crônica/epidemiologia , Estudos de Coortes , Comorbidade , Feminino , Humanos , Incidência , Estimativa de Kaplan-Meier , Estilo de Vida , Pessoa de Meia-Idade , Doenças do Sistema Nervoso/complicações , Doenças do Sistema Nervoso/epidemiologia , Doenças do Sistema Nervoso/psicologia , Osteoporose Pós-Menopausa/complicações , Osteoporose Pós-Menopausa/epidemiologia , Osteoporose Pós-Menopausa/psicologia , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/etiologia , Medição de Risco
13.
Calcif Tissue Int ; 95(5): 428-35, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25187239

RESUMO

There are occasional marked discordances in BMD T-scores at the lumbar spine (LS) and femoral neck (FN). We investigated whether such discordances could contribute independently to fracture prediction using FRAX. We studied 21,158 women, average age 63 years, from 10 prospective cohorts with baseline FRAX variables as well as FN and LS BMD. Incident fractures were collected by self-report and/or radiographic reports. Extended Poisson regression examined the relationship between differences in LS and FN T-scores (ΔLS-FN) and fracture risk, adjusted for age, time since baseline and other factors including FRAX 10-year probability for major osteoporotic fracture calculated using FN BMD. To examine the effect of an adjustment for ΔLS-FN on reclassification, women were separated into risk categories by their FRAX major fracture probability. High risk was classified using two approaches: being above the National Osteoporosis Guideline Group intervention threshold or, separately, being in the highest third of each cohort. The absolute ΔLS-FN was greater than 2 SD for 2.5% of women and between 1 and 2 SD for 21%. ΔLS-FN was associated with a significant risk of fracture adjusted for baseline FRAX (HR per SD change = 1.09; 95% CI = 1.04-1.15). In reclassification analyses, only 2.3-3.2% of the women moved to a higher or lower risk category when using FRAX with ΔLS-FN compared with FN-derived FRAX alone. Adjustment of estimated fracture risk for a large LS/FN discrepancy (>2SD) impacts to a large extent on only a relatively small number of individuals. More moderate (1-2SD) discordances in FN and LS T-scores have a small impact on FRAX probabilities. This might still improve clinical decision-making, particularly in women with probabilities close to an intervention threshold.


Assuntos
Densidade Óssea , Colo do Fêmur/diagnóstico por imagem , Vértebras Lombares/diagnóstico por imagem , Fraturas por Osteoporose/epidemiologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Pessoa de Meia-Idade , Radiografia , Risco
14.
Osteoporos Int ; 24(2): 567-80, 2013 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-23208074

RESUMO

SUMMARY: The Women's Health Initiative (WHI) double-blind, placebo-controlled clinical trial randomly assigned 36,282 postmenopausal women in the U.S. to 1,000 mg elemental calcium carbonate plus 400 IU of vitamin D(3) daily or placebo, with average intervention period of 7.0 years. The trial was designed to test whether calcium plus vitamin D supplementation in a population in which the use of these supplements was widespread would reduce hip fracture, and secondarily, total fracture and colorectal cancer. INTRODUCTION: This study further examines the health benefits and risks of calcium and vitamin D supplementation using WHI data, with emphasis on fractures, cardiovascular disease, cancer, and total mortality. METHODS: WHI calcium and vitamin D randomized clinical trial (CT) data through the end of the intervention period were further analyzed with emphasis on treatment effects in relation to duration of supplementation, and these data were contrasted and combined with corresponding data from the WHI prospective observational study (OS). RESULTS: Among women not taking personal calcium or vitamin D supplements at baseline, the hazard ratio [HR] for hip fracture occurrence in the CT following 5 or more years of calcium and vitamin D supplementation versus placebo was 0.62 (95 % confidence interval (CI), 0.38-1.00). In combined analyses of CT and OS data, the corresponding HR was 0.65 (95 % CI, 0.44-0.98). Supplementation effects were not apparent on the risks of myocardial infarction, coronary heart disease, total heart disease, stroke, overall cardiovascular disease, colorectal cancer, or total mortality, while evidence for a reduction in breast cancer risk and total invasive cancer risk among calcium plus vitamin D users was only suggestive. CONCLUSION: Though based primarily on a subset analysis, long-term use of calcium and vitamin D appears to confer a reduction that may be substantial in the risk of hip fracture among postmenopausal women. Other health benefits and risks of supplementation at doses considered, including an elevation in urinary tract stone formation, appear to be modest and approximately balanced.


Assuntos
Conservadores da Densidade Óssea/uso terapêutico , Carbonato de Cálcio/uso terapêutico , Colecalciferol/uso terapêutico , Suplementos Nutricionais/efeitos adversos , Fraturas por Osteoporose/prevenção & controle , Idoso , Conservadores da Densidade Óssea/administração & dosagem , Conservadores da Densidade Óssea/efeitos adversos , Carbonato de Cálcio/administração & dosagem , Carbonato de Cálcio/efeitos adversos , Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/prevenção & controle , Colecalciferol/administração & dosagem , Colecalciferol/efeitos adversos , Método Duplo-Cego , Esquema de Medicação , Quimioterapia Combinada , Feminino , Fraturas do Quadril/epidemiologia , Fraturas do Quadril/etiologia , Fraturas do Quadril/prevenção & controle , Humanos , Pessoa de Meia-Idade , Neoplasias/epidemiologia , Neoplasias/prevenção & controle , Osteoporose Pós-Menopausa/complicações , Osteoporose Pós-Menopausa/tratamento farmacológico , Osteoporose Pós-Menopausa/epidemiologia , Fraturas por Osteoporose/epidemiologia , Medição de Risco/métodos , Estados Unidos/epidemiologia , Cálculos Urinários/induzido quimicamente , Cálculos Urinários/epidemiologia
15.
Osteoporos Int ; 24(1): 59-67, 2013 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-22525976

RESUMO

UNLABELLED: We evaluated healthcare utilization associated with treating fracture types in >51,000 women aged ≥55 years. Over the course of 1 year, there were five times more non-hip, non-spine fractures than hip or spine fractures, resulting in twice as many days of hospitalization and rehabilitation/nursing home care for non-hip, non-spine fractures. INTRODUCTION: The purpose of this study is to evaluate medical healthcare utilization associated with treating several types of fractures in women ≥55 years from various geographic regions. METHODS: Information from the Global Longitudinal Study of Osteoporosis in Women (GLOW) was collected via self-administered patient questionnaires at baseline and year 1 (n = 51,491). Self-reported clinically recognized low-trauma fractures at year 1 were classified as incident spine, hip, wrist/hand, arm/shoulder, pelvis, rib, leg, and other fractures. Healthcare utilization data were self-reported and included whether the fracture was treated at a doctor's office/clinic or at a hospital. Patients were asked if they had undergone surgery or been treated at a rehabilitation center or nursing home. RESULTS: During 1-year follow-up, there were 195 spine, 134 hip, and 1,654 non-hip, non-spine fractures. Clinical vertebral fractures resulted in 617 days of hospitalization and 512 days of rehabilitation/nursing home care; hip fractures accounted for 1,306 days of hospitalization and 1,650 days of rehabilitation/nursing home care. Non-hip, non-spine fractures resulted in 3,805 days in hospital and 5,186 days of rehabilitation/nursing home care. CONCLUSIONS: While hip and vertebral fractures are well recognized for their associated increase in health resource utilization, non-hip, non-spine fractures, by virtue of their 5-fold greater number, require significantly more healthcare resources.


Assuntos
Serviços de Saúde/estatística & dados numéricos , Fraturas por Osteoporose/terapia , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Feminino , Fixação de Fratura/reabilitação , Pesquisa sobre Serviços de Saúde/métodos , Fraturas do Quadril/epidemiologia , Fraturas do Quadril/terapia , Hospitalização/estatística & dados numéricos , Humanos , Cooperação Internacional , Tempo de Internação/estatística & dados numéricos , Estudos Longitudinais , Pessoa de Meia-Idade , Casas de Saúde/estatística & dados numéricos , Osteoporose Pós-Menopausa/complicações , Osteoporose Pós-Menopausa/epidemiologia , Osteoporose Pós-Menopausa/terapia , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/etiologia , Centros de Reabilitação/estatística & dados numéricos , Fraturas da Coluna Vertebral/epidemiologia , Fraturas da Coluna Vertebral/terapia
16.
Osteoporos Int ; 23(3): 887-99, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-21625880

RESUMO

UNLABELLED: To examine the association between renal function and fracture in multiethnic women, we studied postmenopausal women enrolled in the Women's Health Initiative. Postmenopausal White women with mild renal dysfunction were at increased risk of nonvertebral fracture; this association was at least partially explained by effects of renal dysfunction on chronic inflammation. Reduced renal function appeared to increase fracture risk among Black women, but there was little evidence to support this association among other racial/ethnic groups. INTRODUCTION: The purpose of this study was to determine whether renal function is associated with fracture risk within racial/ethnic groups. METHODS: A nested case-control study was conducted among 93,673 postmenopausal women; incident nonvertebral fractures were identified in 362 Black, 183 Hispanic, 110 Asian, and 45 American-Indian women. A random sample of 395 White women with incident nonvertebral fracture was chosen. One nonfracture control for each case was selected (matched on age, race/ethnicity, and blood draw date). Cystatin C levels were measured using baseline serum, and estimated glomerular filtration rate calculated (eGFR(cys-c)). RESULTS: Each 1 SD increase in cystatin C was associated with a 1.2-fold increased risk of fracture among White women (adjusted odds ratios [OR], 1.23; 95% confidence intervals [CI], 1.04-1.46). The OR of fracture was 1.16 (95% CI, 0.85-1.58) among women with eGFR(cys-c) 60-90 mL/min/1.73 m(2) and 2.46 (95% CI, 1.16-5.21) among those with eGFR(cys-c) <60 mL/min/1.73 m(2) compared to the reference group (eGFR(cys-c) >90 mL/min/1.73 m(2)) (p trend = 0.05). The association was reduced after adjustment for cytokine TNFα soluble receptors (OR, 1.62; 95% CI, 0.59-4.46 for eGFR(cys-c) <60 mL/min/1.73 m(2)). Among Blacks, there was an association between cystatin C and fracture risk (OR per 1 SD increase, 1.15; 95% CI, 1.00-1.32); after adjustment, this association was only modestly attenuated, but no longer statistically significant. There was no evidence of significant associations among Hispanic, Asian, or American-Indian women. CONCLUSION: Postmenopausal White women with mild renal dysfunction are at increased risk of nonvertebral fracture. Effects of renal function on chronic inflammation may mediate this association. Reduced renal function may increase fracture risk among Black women, but there was little evidence to support this association among other racial/ethnic groups.


Assuntos
Fraturas Ósseas/etiologia , Insuficiência Renal Crônica/complicações , Idoso , Biomarcadores/sangue , Estudos de Casos e Controles , Cistatina C/sangue , Feminino , Fraturas Ósseas/sangue , Fraturas Ósseas/etnologia , Taxa de Filtração Glomerular , Humanos , Mediadores da Inflamação/sangue , Pessoa de Meia-Idade , Pós-Menopausa/sangue , Pós-Menopausa/etnologia , Pós-Menopausa/fisiologia , Estudos Prospectivos , Insuficiência Renal Crônica/sangue , Insuficiência Renal Crônica/etnologia , Medição de Risco/métodos , Estados Unidos/epidemiologia
17.
Osteoporos Int ; 23(8): 2179-88, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22086311

RESUMO

UNLABELLED: We examined variations in proportions of hip fractures and major fractures among postmenopausal women using the Global Longitudinal Study of Osteoporosis in Women (GLOW). The proportion of major fractures that were hip fractures varied with age and region, whereas variations in the proportion of fractures that were major fractures appeared modest. INTRODUCTION: In many countries, the World Health Organization fracture risk assessment tool calculates the probability of major fractures by assuming a uniform age-associated proportion of major fractures that are hip fractures in different countries. We further explored this assumption, using data from the GLOW. METHODS: GLOW is an observational population-based study of 60,393 non-institutionalized women aged ≥55 years who had visited practices within the previous 2 years. Main outcome measures were self-reported prevalent fractures after the age of 45 years and incident fractures during the 2 years of follow-up. RESULTS: The adjusted proportion of prevalent and incident major fractures after the age of 45 years that were hip fractures was higher in North America (16%, 17%) than in northern (13%, 12%) and southern Europe (10%, 10%), respectively. The proportion of incident major fractures that were hip fractures increased more than five-fold with age, from 6.6% among 55-59-year-olds to 34% among those aged ≥85 years. Regional and age-associated variations in the proportion of all incident fractures that were major fractures were less marked, not exceeding 16% and 28%, respectively. CONCLUSIONS: The data suggest that there may be regional differences in the proportion of major fractures that are hip fractures in postmenopausal women. In contrast, the regional and age-related variations in the proportion of fractures that are major fractures appear to be modest. However, because of the limited number of fractures in our sample, further studies are necessary to confirm these findings.


Assuntos
Fraturas Ósseas/epidemiologia , Osteoporose Pós-Menopausa/epidemiologia , Fraturas por Osteoporose/epidemiologia , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Europa (Continente)/epidemiologia , Feminino , Seguimentos , Fraturas do Quadril/epidemiologia , Humanos , Incidência , Estudos Longitudinais , Pessoa de Meia-Idade , América do Norte/epidemiologia , Prevalência , Inquéritos e Questionários
18.
Osteoporos Int ; 23(12): 2863-71, 2012 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-22398855

RESUMO

UNLABELLED: Among 50,461 postmenopausal women, 1,822 fractures occurred (57% minor non-hip, non-vertebral [NHNV], 26% major NHNV, 10% spine, 7% hip) over 1 year. Spine fractures had the greatest detrimental effect on EQ-5D, followed by major NHNV and hip fractures. Decreases in physical function and health status were greatest for spine or hip fractures. INTRODUCTION: There is growing evidence that NHNV fractures result in substantial morbidity and healthcare costs. The aim of this prospective study was to assess the effect of these NHNV fractures on quality of life. METHODS: We analyzed the 1-year incidences of hip, spine, major NHNV (pelvis/leg, shoulder/arm) and minor NHNV (wrist/hand, ankle/foot, rib/clavicle) fractures among women from the Global Longitudinal study of Osteoporosis in Women (GLOW). Health-related quality of life (HRQL) was analyzed using the EuroQol EQ-5D tool and the SF-36 health survey. RESULTS: Among 50,461 women analyzed, there were 1,822 fractures (57% minor NHNV, 26% major NHNV, 10% spine, 7% hip) over 1 year. Spine fractures had the greatest detrimental effect on EQ-5D summary scores, followed by major NHNV and hip fractures. The number of women with mobility problems increased most for those with major NHNV and spine fractures (both +8%); spine fractures were associated with the largest increases in problems with self care (+11%), activities (+14%), and pain/discomfort (+12%). Decreases in physical function and health status were greatest for those with spine or hip fractures. Multivariable modeling found that EQ-5D reduction was greatest for spine fractures, followed by hip and major/minor NHNV. Statistically significant reductions in SF-36 physical function were found for spine fractures, and were borderline significant for major NHNV fractures. CONCLUSION: This prospective study shows that NHNV fractures have a detrimental effect on HRQL. Efforts to optimize the care of osteoporosis patients should include the prevention of NHNV fractures.


Assuntos
Osteoporose Pós-Menopausa/reabilitação , Fraturas por Osteoporose/reabilitação , Qualidade de Vida , Distribuição por Idade , Idoso , Idoso de 80 Anos ou mais , Feminino , Seguimentos , Fraturas do Quadril/epidemiologia , Fraturas do Quadril/etiologia , Fraturas do Quadril/reabilitação , Humanos , Incidência , Pessoa de Meia-Idade , Osteoporose Pós-Menopausa/complicações , Osteoporose Pós-Menopausa/epidemiologia , Osteoporose Pós-Menopausa/psicologia , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/etiologia , Fatores de Risco , Fraturas da Coluna Vertebral/epidemiologia , Fraturas da Coluna Vertebral/etiologia , Fraturas da Coluna Vertebral/reabilitação
19.
Int J Sport Exerc Psychol ; 20(2): 630-643, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35494549

RESUMO

Exploring whether the mechanisms underlying the positive relationship between group exercise and physical activity are forms of social support - emotional, validation, informational, instrumental, and companionship and exercise identity. Participants (n=506; M age = 34.3) completed a 235-item questionnaire assessing physical activity, exercise identity, social support, and other determinants of physical activity. Exploratory path analysis was used to model group exercise membership, forms of social support, exercise identity, and metabolic equivalent (MET) minutes/wk. Women and men had similar yet varying results. For women, group exercise membership was significantly associated with MET-minutes/wk (ß = 0.11) and exercise identity (ß = 0.17). There was a significant association between exercise identity and MET-minutes/wk (ß = 0.38). Women perceived belonging to an exercise group provides emotional (ß = 0.36), validation (ß = 0.25), informational (ß = 0.35), instrumental (ß = 0.19), and companionship (ß = 0.46) support. Validation (ß = 0.11), informational (ß = 0.21), and companionship (B = 0.17) were significantly associated with exercise identity for women. For men, group exercise membership was not significantly associated with MET-minutes/wk or exercise identity. Exercise identity was significantly associated with MET-minutes/wk (ß = 0.46). Men perceived belonging to their group provides emotional (ß = 0.31), validation (ß = 0.32), informational (ß = 0.33), and companionship (ß = 0.34). Validation (ß = 0.22), informational (ß = 0.30), and emotional (ß = 0.23) were significantly associated with exercise identity for men. Belonging to an exercise group is associated with forms of social support that strengthen exercise identity.

20.
Osteoporos Int ; 22(1): 27-35, 2011 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-20358360

RESUMO

UNLABELLED: We compared self-perception of fracture risk with actual risk among 60,393 postmenopausal women aged ≥55 years, using data from the Global Longitudinal Study of Osteoporosis in Women (GLOW). Most postmenopausal women with risk factors failed to appreciate their actual risk for fracture. Improved education about osteoporosis risk factors is needed. INTRODUCTION: This study seeks to compare self-perception of fracture risk with actual risk among postmenopausal women using data from GLOW. METHODS: GLOW is an international, observational, cohort study involving 723 physician practices in 17 sites in ten countries in Europe, North America, and Australia. Participants included 60,393 women ≥55 years attended by their physician during the previous 24 months. The sample was enriched so that two thirds were ≥65 years. Baseline surveys were mailed October 2006 to February 2008. Main outcome measures were self-perception of fracture risk in women with elevated risk vs women of the same age and frequency of risk factors for fragility fracture. RESULTS: In the overall study population, 19% (10,951/58,434) of women rated their risk of fracture as a little/much higher than that of women of the same age; 46% (27,138/58,434) said it was similar; 35% (20,345/58,434) believed it to be a little/much lower. Among women whose actual risk was increased based on the presence of any one of seven risk factors for fracture, the proportion who recognized their increased risk ranged from 19% for smokers to 39% for current users of glucocorticoid medication. Only 33% (4,185/12,612) of those with ≥2 risk factors perceived themselves as being at higher risk. Among women reporting a diagnosis of osteopenia or osteoporosis, only 25% and 43%, respectively, thought their risk was increased. CONCLUSION: In this international, observational study, most postmenopausal women with risk factors failed to appreciate their actual risk for fracture.


Assuntos
Conhecimentos, Atitudes e Prática em Saúde , Osteoporose Pós-Menopausa/complicações , Fraturas por Osteoporose/etiologia , Idoso , Austrália/epidemiologia , Métodos Epidemiológicos , Europa (Continente)/epidemiologia , Feminino , Humanos , Pessoa de Meia-Idade , América do Norte/epidemiologia , Osteoporose Pós-Menopausa/diagnóstico , Osteoporose Pós-Menopausa/epidemiologia , Osteoporose Pós-Menopausa/psicologia , Fraturas por Osteoporose/epidemiologia , Fraturas por Osteoporose/psicologia
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