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1.
EBioMedicine ; 11: 302-306, 2016 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-27558858

RESUMO

BACKGROUND: Response to disease modifying antirheumatic drugs (DMARDs) in rheumatoid arthritis (RA) is often heterogeneous. We aimed to identify types of disease activity trajectories following the initiation of a new biologic DMARD (bDMARD). METHODS: Pooled analysis of nine national registries of patients with diagnosis of RA, who initiated Abatacept and had at least two measures of disease activity (DAS28). We used growth mixture models to identify groups of patients with similar courses of treatment response, and examined these patients' characteristics and effectiveness outcomes. FINDINGS: We identified three types of treatment response trajectories: 'gradual responders' (GR; 3576 patients, 91·7%) had a baseline mean DAS28 of 4·1 and progressive improvement over time; 'rapid responders' (RR; 219 patients, 5·6%) had higher baseline DAS28 and rapid improvement in disease activity; 'inadequate responders' (IR; 103 patients, 2·6%) had high DAS28 at baseline (5·1) and progressive worsening in disease activity. They were similar in baseline characteristics. Drug discontinuation for ineffectiveness was shorter among inadequate responders (p=0.03), and EULAR good or moderate responses at 1year was much higher among 'rapid responders' (p<0.001). INTERPRETATION: Clinical information and baseline clinical characteristics do not allow a reliable prediction of which trajectory the patients will follow after bDMARD initiation.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Reumatoide/diagnóstico , Artrite Reumatoide/tratamento farmacológico , Fatores Biológicos/uso terapêutico , Biomarcadores , Comorbidade , Progressão da Doença , Feminino , Seguimentos , Humanos , Masculino , Índice de Gravidade de Doença , Resultado do Tratamento
2.
Ann Rheum Dis ; 74(6): 979-84, 2015 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-24442884

RESUMO

OBJECTIVES: To compare the effectiveness of rituximab versus an alternative tumour necrosis factor (TNF) inhibitor (TNFi) in patients with rheumatoid arthritis (RA) with an inadequate response to one previous TNFi. METHODS: SWITCH-RA was a prospective, global, observational, real-life study. Patients non-responsive or intolerant to a single TNFi were enrolled ≤4 weeks after starting rituximab or a second TNFi. Primary end point: change in Disease Activity Score in 28 joints excluding patient's global health component (DAS28-3)-erythrocyte sedimentation rate (ESR) over 6 months. RESULTS: 604 patients received rituximab, and 507 an alternative TNFi as second biological therapy. Reasons for discontinuing the first TNFi were inefficacy (n=827), intolerance (n=263) and other (n=21). A total of 728 patients were available for primary end point analysis (rituximab n=405; TNFi n=323). Baseline mean (SD) DAS28-3-ESR was higher in the rituximab than the TNFi group: 5.2 (1.2) vs 4.8 (1.3); p<0.0001. Least squares mean (SE) change in DAS28-3-ESR at 6 months was significantly greater in rituximab than TNFi patients: -1.5 (0.2) vs -1.1 (0.2); p=0.007. The difference remained significant among patients discontinuing the initial TNFi because of inefficacy (-1.7 vs -1.3; p=0.017) but not intolerance (-0.7 vs -0.7; p=0.894). Seropositive patients showed significantly greater improvements in DAS28-3-ESR with rituximab than with TNFi (-1.6 (0.3) vs -1.2 (0.3); p=0.011), particularly those switching because of inefficacy (-1.9 (0.3) vs -1.5 (0.4); p=0.021). The overall incidence of adverse events was similar between the rituximab and TNFi groups. CONCLUSIONS: These real-life data indicate that, after discontinuation of an initial TNFi, switching to rituximab is associated with significantly improved clinical effectiveness compared with switching to a second TNFi. This difference was particularly evident in seropositive patients and in those switched because of inefficacy.


Assuntos
Anticorpos Monoclonais Murinos/uso terapêutico , Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Corticosteroides/uso terapêutico , Adulto , Idoso , Substituição de Medicamentos , Quimioterapia Combinada , Feminino , Humanos , Masculino , Metotrexato/uso terapêutico , Pessoa de Meia-Idade , Estudos Prospectivos , Rituximab , Falha de Tratamento , Resultado do Tratamento
3.
Ann Rheum Dis ; 69(12): 2095-101, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-20570834

RESUMO

OBJECTIVES: To explore the impact of disease-modifying osteoarthritis drug (DMOAD) treatment on biomarker levels and their correlation with cartilage volume loss and disease symptoms in a 2-year phase III clinical trial in patients with knee OA. METHODS: 161 patients with knee OA (according-to-protocol population) were selected from a 2-year DMOAD trial studying the effect of licofelone (200 mg twice daily) versus naproxen (500 mg twice daily). Clinical evaluation of patients was carried out using the Western Ontario and McMaster Universities (WOMAC) questionnaire. Biomarker measurements of matrix metalloproteinase (MMP)-1, MMP-3, interleukin (IL)-6, C reactive protein (CRP), cartilage oligomeric matrix protein (COMP) and type I collagen C-terminal telopeptide (CTX-I) in serum, type II collagen C-terminal telopeptide (CTX-II) in urine, and knee MRI were performed at baseline and 2 years. RESULTS: Over time an increase occurred in all biomarker levels with the exception of IL-6, CRP and CTX-II which decreased. The increase in MMP-1 and MMP-3 was significantly less (p = 0.05; p < 0.01, respectively) in the licofelone group. The baseline MMP-1 level was significantly but inversely predictive of cartilage volume loss for the medial compartment in both univariate (p = 0.04) and multivariate (p ≤ 0.04) regression analyses, and COMP, a predictor for the lateral compartment, in both univariate and multivariate models (p < 0.01). Baseline levels of IL-6 and CRP also showed a significant relationship with volume loss for the medial compartment (univariate analysis, p = 0.04 and p = 0.01, respectively; multivariate analysis, p = 0.03, p = 0.01). A significant association (univariate) was observed between the change in the levels of MMP-1 (p = 0.03) and MMP-3 (p = 0.02) and cartilage volume loss (lateral compartment) over 2 years. Baseline levels of CTX-I correlated (p = 0.02) with an increase in the size of the bone marrow lesion in the medial compartment. The baseline CRP levels correlated with worsening of symptoms: WOMAC total index (p < 0.01), pain (p < 0.01) and function (p < 0.01). CONCLUSION: Higher baseline values of IL-6, CRP and COMP are predictive of greater risk of cartilage loss in OA. However, over time a reduction in MMP-1 and MMP-3 levels correlated best with reduction in cartilage volume loss and the effect of drug treatment. Baseline CRP was found to be a good predictor of the symptomatic response to treatment.


Assuntos
Anti-Inflamatórios não Esteroides/uso terapêutico , Metaloproteinases da Matriz/sangue , Osteoartrite do Joelho/tratamento farmacológico , Idoso , Biomarcadores/sangue , Proteína C-Reativa/metabolismo , Cartilagem Articular/patologia , Monitoramento de Medicamentos/métodos , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Pessoa de Meia-Idade , Naproxeno/uso terapêutico , Osteoartrite do Joelho/enzimologia , Osteoartrite do Joelho/patologia , Pirróis/uso terapêutico , Índice de Gravidade de Doença , Resultado do Tratamento
4.
Scand J Rheumatol ; 38(4): 311-6, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19444717

RESUMO

We report the case of a patient with rheumatoid arthritis (RA) on etanercept who presented with panniculitis and focal myositis as manifestations of disseminated histoplasmosis. Systematic search of the literature showed 11 additional case reports of disseminated histoplasmosis with tumour necrosis factor-alpha (TNFalpha) blockade therapy (infliximab, n = 8; etanercept, n = 3). Although disseminated histoplasmosis may manifest with classical symptoms of fever and respiratory complaints, it may also present atypically, such as with panniculitis and focal myositis. This review illustrates and emphasizes the importance of being highly suspicious for infection, including by opportunistic organisms, and to exclude such process in patients treated with a TNFalpha inhibitor when faced with unusual complications, even when an alternative aetiology appears plausible.


Assuntos
Artrite Reumatoide/tratamento farmacológico , Fungemia/diagnóstico , Histoplasmose/diagnóstico , Imunoglobulina G/uso terapêutico , Miosite/diagnóstico , Paniculite/diagnóstico , Receptores do Fator de Necrose Tumoral/uso terapêutico , Idoso , Antibacterianos/uso terapêutico , Artrite Reumatoide/diagnóstico , Artrite Reumatoide/imunologia , Biópsia por Agulha , Diagnóstico Diferencial , Quimioterapia Combinada , Etanercepte , Seguimentos , Fungemia/tratamento farmacológico , Histoplasma/isolamento & purificação , Histoplasmose/patologia , Humanos , Hospedeiro Imunocomprometido/imunologia , Imuno-Histoquímica , Imunossupressores/uso terapêutico , Itraconazol/uso terapêutico , Masculino , Miosite/tratamento farmacológico , Miosite/imunologia , Infecções Oportunistas/diagnóstico , Infecções Oportunistas/tratamento farmacológico , Paniculite/tratamento farmacológico , Paniculite/imunologia , Medição de Risco
5.
Ann Rheum Dis ; 68(6): 938-47, 2009 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18653484

RESUMO

OBJECTIVE: In a multicentre study to explore the effects of licofelone as a disease-modifying osteoarthritis drug in comparison with naproxen in patients with knee osteoarthritis (OA), using MRI and x-ray examination. METHODS: Patients with knee OA (n = 355) were randomised to receive either licofelone (200 mg twice a day) or naproxen (500 mg twice a day). MRI and x-ray examinations were performed at baseline, 6 months (MRI only), 12 and 24 months. MRI was used to assess quantitatively changes in cartilage volume, and x-ray examinations (Lyon-Schuss) to measure changes in the mean and minimum joint space width (JSW) in the medial compartment. Questionnaires probing symptoms were completed. Data were presented as intention to treat (ITT) and according to protocol (ATP). RESULTS: Cartilage volume loss in the global joint and medial and lateral compartments was significantly less in the licofelone than in the naproxen group for ITT at 12 and 24 months and for ATP at all times except in the medial compartment. Patients with medial meniscal extrusion had a greater loss of cartilage volume. In these patients, licofelone markedly reduced the cartilage loss for both ITT and ATP at 12 and 24 months. Although licofelone showed less reduction in the JSW than naproxen, this did not reach significance. All clinical variables were improved at 24 months (p<0.001) for both groups, with a good safety profile. CONCLUSION: Licofelone and naproxen were equally effective in reducing OA symptoms; however, licofelone significantly reduced cartilage volume loss over time, thus having a protective effect in patients with knee OA. This study proves the superiority of quantitative MRI over x-ray examinations in a multicentre clinical trial.


Assuntos
Antirreumáticos/uso terapêutico , Inibidores de Ciclo-Oxigenase/uso terapêutico , Naproxeno/uso terapêutico , Osteoartrite do Joelho/tratamento farmacológico , Osteoartrite do Joelho/patologia , Pirróis/uso terapêutico , Idoso , Antirreumáticos/efeitos adversos , Cartilagem Articular/patologia , Distribuição de Qui-Quadrado , Inibidores de Ciclo-Oxigenase/efeitos adversos , Método Duplo-Cego , Esquema de Medicação , Feminino , Seguimentos , Humanos , Processamento de Imagem Assistida por Computador , Articulação do Joelho/diagnóstico por imagem , Inibidores de Lipoxigenase , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Naproxeno/efeitos adversos , Osteoartrite do Joelho/diagnóstico por imagem , Medição da Dor , Pirróis/efeitos adversos , Radiografia , Resultado do Tratamento
6.
Osteoarthritis Cartilage ; 16 Suppl 3: S8-13, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18672386

RESUMO

OBJECTIVES: Synovitis in knee osteoarthritis (OA) patients is a significant risk factor for disease progression. This study aimed at developing a magnetic resonance imaging (MRI) scoring system allowing reliable and sensitive assessment of synovitis severity in knee OA patients without the use of a contrast agent. METHODS: Imaging was performed without contrast agent, using a 1.5T and a knee coil. For the synovial membrane, the MRI exam included two axial sequences: a T2-weighted (synovial fluid) and a gradient echo (GRE) (synovial membrane). Synovial membrane thickness was measured on four regions of interest (ROI): medial and lateral recesses, and medial and lateral suprapatellar bursa, with each graded/scored from 0 to 3, for a maximum of 12. A validation study was performed on a cohort of 27 knee OA patients having MRI at baseline. A subset of 14 patients had an additional MRI acquisition and symptom assessment at Day 60. Evaluation of disease symptoms was done with Western Ontario and McMaster Universities OA Index and visual analog scale, and of cartilage volume, menisci and subchondral bone, with MR images from a 3D spoiled gradient recalled (SPGR) sequence. RESULTS: The synovial membrane thickness grade was 1.9+/-0.5 (mean+/-SD) with a score of 7.1+/-2.3. The intra-reader (r=0.91) and inter-reader (r=0.82) correlation coefficients were excellent (P<0.0001). The medial compartment grade was 1.9+/-0.6 and score was 3.4+/-1.4, and of the lateral compartment were 2.0+/-0.7 and 3.7+/-1.5, respectively. The grade and score for the suprapatellar bursa and recess were 1.8+/-0.7 and 3.5+/-1.5, and 2.1+/-0.5 and 3.9+/-0.9, respectively. No statistically significant differences in the ROI score and grade were observed between medial and lateral compartments or between recess and suprapatellar bursa. A positive correlation was found between the global severity of synovitis at baseline and the presence of a medial meniscal extrusion (P<0.04), and the loss of cartilage volume at 60 days (P<0.03). CONCLUSION: This newly developed MRI technology for the assessment of synovial membrane thickness in knee OA patients was shown to be accurate and reproducible.


Assuntos
Cartilagem Articular/fisiologia , Osteoartrite do Joelho/diagnóstico , Sinovite/diagnóstico , Idoso , Progressão da Doença , Feminino , Humanos , Processamento de Imagem Assistida por Computador , Articulação do Joelho/patologia , Estudos Longitudinais , Imageamento por Ressonância Magnética/métodos , Masculino , Meniscos Tibiais/patologia , Pessoa de Meia-Idade , Osteoartrite do Joelho/fisiopatologia , Índice de Gravidade de Doença , Membrana Sinovial/patologia
7.
Ann Rheum Dis ; 67(5): 683-8, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-17728333

RESUMO

OBJECTIVE: To evaluate in patients with knee osteoarthritis (OA) the size changes in bone oedema and cysts over 24 months, and to contrast these changes with cartilage volume loss using quantitative magnetic resonance imaging. METHODS: 107 patients with knee OA, selected from a large trial evaluating the effect of a bisphosphonate, were analysed by magnetic resonance imaging at baseline and 24 months. Assessments of subchondral bone oedema and cysts, and cartilage volume were done. RESULTS: At baseline, 86 patients showed the presence of at least one type of bone lesion: 71 oedema, 61 cysts and 51 both. At 24 months, although not statistically significant, the oedema total size change increased by 2.09 (SD 15.03) mm, and the cyst by 1.09 (8.13) mm; mean size change for the oedema was +0.38 (2.18) mm and -0.10 (4.36) mm for the cyst. When analysed according to subregions, an increase was found for the cyst size in the trochlea (+0.67 (2.74) mm, p = 0.02) and in the lateral tibial plateau (+0.15 (0.83) mm, p = 0.09), and for the oedema size in the medial tibial plateau (+1.73 (8.11) mm, p = 0.05). At 24 months, significant correlations were seen between the loss of cartilage volume and oedema size change in the medial condyle (-0.40, p = 0.0001) and the medial tibial plateau (-0.23, p = 0.03), and the changes in cyst size in the medial condyle (-0.29, p = 0.01). A multivariate analysis showed that the oedema size change was strongly and independently associated with medial cartilage volume loss (-0.31, p = 0.0004). CONCLUSION: These data demonstrate that bone lesions are prevalent in knee OA. The correlation of the oedema and cyst size increase in the medial compartment over time with a greater loss of cartilage volume in this area underlines the importance of subchondral bone lesions in OA pathophysiology.


Assuntos
Osso e Ossos/patologia , Cartilagem Articular/patologia , Imageamento por Ressonância Magnética , Osteoartrite do Joelho/patologia , Análise de Variância , Cistos Ósseos/patologia , Difosfonatos/uso terapêutico , Progressão da Doença , Edema/patologia , Ácido Etidrônico/análogos & derivados , Ácido Etidrônico/uso terapêutico , Feminino , Fêmur/patologia , Fibrocartilagem/patologia , Seguimentos , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/tratamento farmacológico , Patela/patologia , Ácido Risedrônico
8.
Ann Rheum Dis ; 65(10): 1394-7, 2006 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-16973789

RESUMO

OBJECTIVES: To study the association between two common polymorphisms in the peroxisome proliferator-activated receptor gamma (PPARgamma) gene and susceptibility to, and severity of, osteoarthritis in a French-Canadian population. METHODS: Genomic DNA was obtained from 172 patients with osteoarthritis and 210 ethnically matched healthy controls. Genotyping for the polymorphisms in the PPARgamma gene (Pro12Ala and C1431T) was carried out using polymerase chain reaction-restriction fragment length polymorphism. The standard Kellgren-Lawrence grading score and the French version of the Western Ontario and McMaster Universities Osteoarthritis Index were used to assess the radiological and functional severity of the disease. Estimated haplotypes were generated using the expectation maximisation algorithm. Genotype and allele frequencies were analysed using the chi2 test. RESULTS: Genotype and allele frequencies for either polymorphism in the PPARgamma gene did not differ significantly between patients with osteoarthritis and controls. Moreover, no significant differences were observed after stratification of patients according to age at disease onset, radiological or functional severity. Similarly, haplotype analysis of both polymorphisms in the PPARgamma gene showed no association of any haplotype with susceptibility to, or severity of, osteoarthritis. CONCLUSION: These findings suggest that the examined polymorphisms in the PPARgamma gene do not contribute to susceptibility to, or severity of, osteoarthritis in the French-Canadian population.


Assuntos
Predisposição Genética para Doença , Osteoartrite do Joelho/genética , PPAR gama/genética , Polimorfismo Genético , Idade de Início , Idoso , Estudos de Casos e Controles , Feminino , Frequência do Gene , Genótipo , Haplótipos , Humanos , Masculino , Pessoa de Meia-Idade , Índice de Gravidade de Doença
9.
Rheumatology (Oxford) ; 44(6): 751-5, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15757968

RESUMO

OBJECTIVE: We have shown that SLE patients in Canada and the UK incurred 20% and 13% lower health costs than those in the US, respectively, but did not experience worse outcomes as expressed by the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index. We now compare change in quality of life in these patients. PATIENTS AND METHODS: Seven hundred and fifteen SLE patients (Canada 231, US 269, UK 215) completed the SF-36 annually over four years. The annual change in the SF-36 Physical and Mental Component Summary (PCS and MCS) scores over the course of the study were summarized by estimating a linear trend for each individual patient using hierarchical modelling. Cross-country comparison of the slopes in the PCS and MCS scores was then performed using simultaneous regressions. RESULTS: The estimated mean annual changes (95% credible interval [CrI]) in the PCS scores in Canada, the US, and the UK were 0.18 (-0.07, 0.43), -0.05 (-0.27, 0.17), and 0.03 (-0.20, 0.27), respectively; the mean annual changes in the MCS scores were 0.15 (-0.04, 0.34), 0.23 (0.09, 0.37), and 0.08 (-0.10, 0.27), respectively. Regression results showed that the mean annual changes in PCS and MCS scores did not substantially differ across countries. CONCLUSION: Quality of life remained stable across countries. Despite Canadian and British patients incurring lower health costs, on average, patients experienced similar changes in physical and mental well-being.


Assuntos
Lúpus Eritematoso Sistêmico/reabilitação , Qualidade de Vida , Adulto , Canadá/epidemiologia , Feminino , Nível de Saúde , Humanos , Estudos Longitudinais , Lúpus Eritematoso Sistêmico/epidemiologia , Masculino , Reino Unido/epidemiologia , Estados Unidos/epidemiologia
10.
Ann Rheum Dis ; 64(4): 556-63, 2005 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-15374855

RESUMO

BACKGROUND: The relation between knee meniscal structural damage and cartilage degradation is plausible but not yet clearly proven. OBJECTIVES: To quantitate the cartilage volume changes in knee osteoarthritis using magnetic resonance imaging (MRI), and determine whether meniscal alteration predicts cartilage volume loss over time. METHODS: 32 patients meeting ACR criteria for symptomatic knee osteoarthritis were studied. MRI knee acquisitions were done every six months for two years. The cartilage volumes of different knee regions were measured. Three indices of structural change in the medial and lateral menisci were evaluated--degeneration, tear, and extrusion--using a semiquantitative scale. RESULTS: 24 patients (75%) had mild to moderate or severe meniscal damage (tear or extrusion) at baseline. A highly significant difference in global cartilage volume loss was observed between severe medial meniscal tear and absence of tear (mean (SD), -10.1 (2.1)% v -5.1 (2.4)%, p = 0.002). An even greater difference was found between the medial meniscal changes and medial compartment cartilage volume loss (-14.3 (3.0)% in the presence of severe tear v -6.3 (2.7)% in the absence of tear; p<0.0001). Similarly, a major difference was found between the presence of a medial meniscal extrusion and loss of medial compartment cartilage volume (-15.4 (4.1)% in the presence of extrusion v -4.5 (1.7)% with no extrusion; p<0.001). CONCLUSIONS: Meniscal tear and extrusion appear to be associated with progression of symptomatic knee osteoarthritis.


Assuntos
Traumatismos do Joelho/complicações , Osteoartrite do Joelho/patologia , Lesões do Menisco Tibial , Adulto , Idoso , Idoso de 80 Anos ou mais , Progressão da Doença , Feminino , Humanos , Traumatismos do Joelho/patologia , Imageamento por Ressonância Magnética/métodos , Masculino , Meniscos Tibiais/patologia , Pessoa de Meia-Idade , Osteoartrite do Joelho/etiologia , Projetos Piloto , Análise de Regressão
11.
Rheumatology (Oxford) ; 43(8): 1016-24, 2004 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-15173602

RESUMO

OBJECTIVE: Health consumption and health status in SLE in three countries with different health funding structures were compared. METHODS: Seven hundred and fifteen SLE patients (Canada 231, USA 269, UK 215) were surveyed semi-annually over 4 yr for health resource utilization and health status. Cross-country comparisons of (i) cumulative health expenditure (calculated by applying 2002 Canadian prices to resources in all countries) and (ii) disease damage (Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index, SLICC/ACR DI) at study conclusion were performed after adjustment. Missing expenditure and damage data were managed through multiple imputation using best predictive regressions with all available data from all patients as potential covariates. RESULTS: Four hundred and eighty-five patients provided data at study entry and conclusion and at least four resource questionnaires (Canada 162, USA 157, UK 166); 41 died (Canada 13, USA 18, UK 10); 189 withdrew, were lost to follow-up or provided data at entry and conclusion but fewer than four resource questionnaires (Canada 56, USA 94, UK 39). At conclusion, after imputation, in Canada, the USA and the UK respectively, mean cumulative costs per patient over 4 yr [95% confidence interval (CI)] were $15,845 (13,509, 18,182), $20,244 (17,764, 22,724) and $17,647 (15,557, 19,737) and mean changes in SLICC/ACR DI were 0.49 (0.39, 0.60), 0.63 (0.52, 0.74) and 0.48 (0.39, 0.57). After adjustment for baseline differences, on average (95% CI), Canadian and British patients utilized 20% (8%, 32%) and 13% (1%, 24%) less resources than patients in the USA respectively, but experienced similar health outcomes. CONCLUSION: Despite patients in the USA incurring higher health expenditures, they did not experience superior health outcomes.


Assuntos
Recursos em Saúde/economia , Lúpus Eritematoso Sistêmico/economia , Avaliação de Resultados em Cuidados de Saúde/economia , Adulto , Canadá/epidemiologia , Feminino , Organização do Financiamento/economia , Custos de Cuidados de Saúde , Gastos em Saúde , Nível de Saúde , Humanos , Lúpus Eritematoso Sistêmico/epidemiologia , Lúpus Eritematoso Sistêmico/mortalidade , Masculino , Inquéritos e Questionários , Reino Unido/epidemiologia , Estados Unidos/epidemiologia
13.
J Rheumatol ; 28(11): 2442-8, 2001 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11708416

RESUMO

OBJECTIVE: To portray life with lupus for women affected by this disease and to identify predictors of fatigue, a common symptom that compromises patients' quality of life. METHODS: A sample of 120 female patients (mean age 42.5 yrs) with systemic lupus erythematosus (SLE) from 9 rheumatology clinics across Canada were followed prospectively for 15 months. Assessments of psychosocial functioning took place at baseline, and at 3, 9, and 15 months. Physician examinations were conducted at baseline and 15 months. RESULTS: Significant time effects were found for: global psychological distress (p < 0.001), stress (p < 0.01), emotion-oriented coping (p < 0.001), physical health status (p < 0.001), and fatigue (p < 0.001), indicating that patients improved from baseline to 15 months. Disease activity worsened for 40.3%, improved for 50.8%, and remained the same for 8.8% of the patients from baseline to 15 months. Controlling for baseline disease activity and fatigue, and considering sleep problems, decreases in stress and depression predicted less fatigue at 15 months (p < 0.001; adjusted R2 = 0.43). CONCLUSION: Despite fluctuations in disease activity, patients with SLE, as a group, cope adequately with their disease over time. There is, nonetheless, a subset of patients (about 40%) who remain distressed and who may benefit from psychosocial interventions.


Assuntos
Fadiga/etiologia , Lúpus Eritematoso Sistêmico , Papel do Doente , Adolescente , Adulto , Idoso , Canadá , Feminino , Nível de Saúde , Humanos , Lúpus Eritematoso Sistêmico/complicações , Lúpus Eritematoso Sistêmico/fisiopatologia , Lúpus Eritematoso Sistêmico/psicologia , Pessoa de Meia-Idade , Estudos Prospectivos , Qualidade de Vida , Índice de Gravidade de Doença , Perfil de Impacto da Doença , Comportamento Social , Apoio Social , Inquéritos e Questionários
15.
J Rheumatol ; 27(11): 2597-604, 2000 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-11093439

RESUMO

OBJECTIVE: Indirect costs result from diminished productivity and are incorporated in cost-benefit analysis to guide health resource allocation. Valuing the productivity impairment of those not involved in labor market activities is controversial but important for diseases affecting predominantly women if allocation decisions are to be economically efficient and equitable. We compared indirect costs incurred by women with systemic lupus erythematosus (SLE), a prototypical women's disease, calculated under varying assumptions for the value of diminished labor market and non-labor market activity. METHODS: Six hundred forty-eight female patients with SLE reported on employment status and time lost by themselves and their caregivers from labor market and non-labor market activities over a 6 month period. RESULTS: Average annual indirect costs ranged from $1,424 to $22,604 (1997 Canadian dollars) dependent on the value assigned to labor market and non-labor market activity. CONCLUSION: Indirect cost estimates that fail to consider longterm labor market absenteeism and diminished non-labor market productivity and do not use gender neutral wages to value labor market activity may lead to decisions that jeopardize resources for women's diseases.


Assuntos
Efeitos Psicossociais da Doença , Lúpus Eritematoso Sistêmico/economia , Saúde da Mulher , Absenteísmo , Adulto , Emprego , Feminino , Humanos , Pessoa de Meia-Idade
16.
Arthritis Rheum ; 43(10): 2339-48, 2000 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11037895

RESUMO

OBJECTIVE: To evaluate the efficacy and safety of diacerein, a drug with interleukin-1beta--inhibitory activity in vitro, in patients with knee osteoarthritis (OA). METHODS: A total of 484 patients fulfilling the American College of Rheumatology criteria for knee OA were enrolled in this 16-week, randomized, double-blind, placebo-controlled, parallel study group with 3 diacerein dosages of 50 mg/day, 100 mg/day, and 150 mg/day (administered twice daily). RESULTS: In the intent-to-treat population, 100 mg/day diacerein (50 mg twice daily) was significantly superior (P < 0.05) to placebo using the primary criterion (visual analog scale [VAS] assessment of pain on movement). Significant improvement (P < 0.05) was also observed for the secondary criteria, which included the Western Ontario and McMaster Universities OA Index (WOMAC), the WOMAC subscores, and the VAS assessment of handicap. In patients treated with diacerein dosages of 50 mg/day and 150 mg/day, favorable but not significant results were observed for the primary criterion. The best daily dosage of diacerein, calculated from the effect on the VAS assessment of pain on movement, was 90.1 mg. In the per-protocol population, the analysis of the primary criterion showed significant dose-dependent differences (P < 0.05) between each of the 3 diacerein dosages and the placebo. No differences were observed among the 3 diacerein groups. A significantly higher incidence (P < 0.05) of adverse events (AEs), as well as a higher rate of dropoout due to AEs, was observed in patients treated with 150 mg/day diacerein versus those treated with placebo, 50 mg/day diacerein, or 100 mg/day diacerein. Mild-to-moderate transient changes in bowel habits were the most frequent AEs, increasing with the dosage. CONCLUSION: Diacerein, a drug for the treatment of OA, was shown to be an effective treatment for symptoms in patients with knee OA. Taking into account both efficacy and safety, the optimal daily dosage of diacerein for patients with knee OA is 100 mg/day (50 mg twice daily).


Assuntos
Antraquinonas/farmacocinética , Antraquinonas/uso terapêutico , Anti-Inflamatórios não Esteroides/farmacocinética , Anti-Inflamatórios não Esteroides/uso terapêutico , Osteoartrite do Joelho/tratamento farmacológico , Adulto , Idoso , Antraquinonas/efeitos adversos , Anti-Inflamatórios não Esteroides/efeitos adversos , Índice de Massa Corporal , Método Duplo-Cego , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Placebos , Equivalência Terapêutica
17.
Arthritis Rheum ; 43(6): 1410-8, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10857802

RESUMO

OBJECTIVE: As part of an ongoing study of health resource utilization and diminished productivity in patients with systemic lupus erythematosus (SLE), the use of alternative medical therapies was assessed. METHODS: A cohort of 707 patients with SLE from 3 countries completed questionnaires on demographics, social support, health status (using the Short Form 36 health survey), satisfaction with health care, health resource utilization (conventional resources and alternative therapies), and time losses in labor market and non-labor market activities. Annual direct and indirect costs (1997 Canadian dollars) were calculated and compared for users and nonusers of alternative medical therapies. RESULTS: Among the 707 patients, 352 (49.8%) were found to use alternative therapies and at similar rates across Canada, the United States, and the United Kingdom. Users were younger and better educated than nonusers, exhibited poorer levels of self-rated health status and satisfaction with medical care, and had minimal to no objective evidence of worse disease (according to the revised Systemic Lupus Activity Measure instrument). The mean of log direct medical costs for conventional resources was higher for users of select alternative therapies compared with nonusers. In a logistic regression, neither the number of alternative therapies used nor the individual therapy increased the probability of incurring indirect costs. CONCLUSION: The use of alternative medical therapies is common in patients with SLE. Users of many alternative medical therapies accrue greater conventional medical costs compared with nonusers. The use of alternative medical therapy may be a marker for care-seeking behavior associated with higher consumption of conventional medical resources in the absence of demonstrable additional morbidity and should be considered in future cost analyses of patients with SLE.


Assuntos
Terapias Complementares/estatística & dados numéricos , Lúpus Eritematoso Sistêmico/terapia , Adulto , Canadá , Estudos de Coortes , Feminino , Custos de Cuidados de Saúde , Recursos em Saúde/estatística & dados numéricos , Nível de Saúde , Humanos , Lúpus Eritematoso Sistêmico/economia , Lúpus Eritematoso Sistêmico/fisiopatologia , Masculino , Pessoa de Meia-Idade , Reino Unido , Estados Unidos
18.
J Rheumatol ; 27(2): 365-72, 2000 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-10685798

RESUMO

OBJECTIVE: To compare perceived health status in women with fibromyalgia (FM) and systemic lupus erythematosus (SLE) using the Medical Outcomes Study (MOS) Short Form Health Survey (SF-36); and to identify determinants of physical and mental health in each patient group. METHODS: A cross sectional study of 46 women with FM (mean age 48.13 yrs, SD 9.40) and 59 women with SLE (mean age 42.36 yrs, SD 11.31). Patients with FM were recruited from a rheumatology clinic and a rheumatology practice, while patients with SLE were recruited from 4 rheumatology clinics. Clinical examination determined disease activity (by Systemic Lupus Activity Measure) in SLE and a tender point count was used for FM. Patients completed questionnaires assessing health status (SF-36), stress (Hassles), social support (Social Support Questionnaire 6), and coping (Coping Inventory for Stressful Situations). RESULTS: Patients with FM reported more impairment on the following SF-36 subscales: physical function (p < 0.001), role physical (p < 0.001), bodily pain (p < 0.001), and vitality (p < 0.001). Physical component summary scores were also significantly lower (p < 0.001) for the FM group. Four hierarchical regression analyses were computed to determine factors related to physical and mental health in each patient group, with the following variables in the equation: age, income, disease activity (Step 1), hassles (Step 2), emotional and task coping, and social support (Step 3). Better physical health in FM was related to higher income (R2 = 0.17, p < 0.05). In the SLE group, better physical health was associated with younger age, less disease activity, and lower hassles (R2 = 0.37, p < 0.0001). Worse mental health among women with FM was associated with more hassles, more emotional coping, and less satisfaction with social support (R2 = 0.64, p < 0.0001), while lower income, higher hassles, and more emotional coping were linked to worse mental health in SLE (R2 = 0.46, p < 0.0001). CONCLUSION: Health related quality of life (HRQL) is impaired among women with FM and SLE, with FM patients reporting greater impairment along several dimensions. Enhancing the HRQL of patients with FM and SLE requires targeting specific modifiable psychosocial factors.


Assuntos
Fibromialgia/fisiopatologia , Fibromialgia/psicologia , Nível de Saúde , Lúpus Eritematoso Sistêmico/fisiopatologia , Lúpus Eritematoso Sistêmico/psicologia , Adulto , Feminino , Humanos , Pessoa de Meia-Idade
19.
J Rheumatol ; 26(7): 1500-11, 1999 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-10405937

RESUMO

OBJECTIVE: To compare health care expenditure and health status for patients with systemic lupus erythematosus (SLE) between nations with distinct mechanisms for funding and delivering health care services. METHODS: Seven hundred eight patients with SLE from 2 centers in each of 3 countries (Canada 229, United States 268, United Kingdom 211) underwent physician assessment of disease activity and damage and reported on physical and psychosocial well being, satisfaction, social support, and health resource utilization. To compare overall utilization, constant prices (1997 Canadian dollars) were applied across countries for each service, enabling diverse resources to be collapsed into a single expression. RESULTS: After adjusting for important patient covariates, Canadian, compared to American and British patients, reported significantly superior health status in 3 of 8 Medical Outcome Survey Short Form-36 (SF-36) subscales, the SF-36 physical component summary score, and the visual analog scale of general health status. There was no consistent trend in patient satisfaction. Overall annual resource utilization did not vary significantly, with mean annual per patient expenditures (adjusted for demographics, disease duration, activity, damage, social support, health status, patient satisfaction, and age and sex adjusted country-specific SF-36 general population norms) totalling $4853, $5285, and $4760 for Canada, US, and the UK, respectively. However, within each resource category, differences were observed. Canadians saw more specialists than the British, the British more generalists. Canadians and Americans were more frequent users of the emergency room; Americans of laboratory/imaging procedures. Canadians had higher hospital costs than Americans. CONCLUSION: After adjustment, Canadian patients reported better well being than their counterparts. Despite considerable differences in the mechanisms of health care funding and service mixture, overall resource utilization did not vary significantly between the countries, although there was a trend towards more intense use of inpatient services in Canada and outpatient services in the United States.


Assuntos
Custos de Cuidados de Saúde , Lúpus Eritematoso Sistêmico/economia , Adulto , Canadá , Inglaterra , Feminino , Nível de Saúde , Humanos , Lúpus Eritematoso Sistêmico/psicologia , Masculino , Satisfação do Paciente , Estados Unidos
20.
Arthritis Care Res ; 12(6): 401-10, 1999 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-11081011

RESUMO

OBJECTIVE: To identify determinants of mental and physical health as a function of disease state in patients with systemic lupus erythematosus (SLE). METHODS: A sample of 129 SLE patients (mean age 42.01 years; SD 11.09) was recruited from 9 immunology/rheumatology clinics across Canada. Patients completed questionnaires assessing psychological distress, social support, coping, stress, and health-related quality of life. Physicians rated disease activity (using the revised Systemic Lupus Activity Measure; SLAM-R) and damage (using the Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index). Mental and physical health composite scores were derived from the Medical Outcomes Study Short Form 36. Patients were subdivided into more active (SLAM-R > or = 10; n = 38) or less active disease states (n = 91). RESULTS: Better mental health was predicted by more education and less emotion-oriented coping in the patients in a more active disease state (P = 0.0001; R2 = 0.46). Better mental health was predicted by less stress, less emotion-oriented coping and more task-oriented coping in patients during a less active disease state (P = 0.0001; R2 = 0.45). Better physical health was predicted by more emotion-oriented coping in patients in a more active disease state (P = 0.04; R2 = 0.11). Better physical health was predicted by less stress and younger age in patients during a less active disease state (P = 0.0001; R2 = 0.20). CONCLUSION: The positive association between emotion-oriented coping and better physical health in patients during a more active disease state suggests that this style of coping may be more adaptive in situations that are considered uncontrollable (e.g., SLE flare). Predictors of mental health were similar to those found in the literature, especially for SLE patients in a less active disease state.


Assuntos
Nível de Saúde , Lúpus Eritematoso Sistêmico/psicologia , Saúde Mental , Qualidade de Vida , Doença Aguda , Adaptação Psicológica , Adulto , Doença Crônica , Feminino , Humanos , Lúpus Eritematoso Sistêmico/fisiopatologia , Pessoa de Meia-Idade , Fatores de Risco , Apoio Social , Estresse Psicológico/etiologia , Inquéritos e Questionários
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