Inequity and vulnerability in Latin American Indigenous and non-Indigenous populations with rheumatic diseases: a syndemic approach.

Syndemics are a framework that documents health inequities and vulnerabilities in populations with rheumatic diseases. Compared with other approaches, syndemics are able to conjunctly consider epidemiological, biological, sociodemographic and economic factors, and their interactions. OBJECTIVE: To estimate health inequity and vulnerability among Indigenous and non-Indigenous populations with rheumatic and musculoskeletal diseases (RMD) in Latin America using the syndemic approach. DESIGN: This is a secondary analysis of a previously published large-scale study on the prevalence of RMD. SETTING: Studies carried out in five Latin American countries (Argentina, Colombia, Ecuador, Mexico and Venezuela). Health inequity and vulnerability in RMD were identified through a syndemic approach using network and cluster analysis. PARTICIPANTS: A total of 44 560 individuals were studied: 29.78% self-identified as Indigenous, 60.92% were female, the mean age was 43.25 years. Twenty clusters were identified in the Indigenous population and 17 in the non-Indigenous population. RESULTS: The variables associated with RMD among Indigenous populations were rurality, public health system, high joint biomechanical stress, greater pain, disability and alcoholism; and among non-Indigenous people they were being a woman, urban origin, older age, private health system, joint biomechanical stress, greater pain and disability. We identified different health inequities among patients with RMD (ie, lower educational attainment, more comorbidities), associated with factors such as Indigenous self-identification and rural residence. CONCLUSIONS: A syndemic approach enables us to identify health inequities in RMD, as shown by higher prevalence of comorbidities, disability and socioeconomic factors like lower educational attainment. These inequities exist for the overall population of patients with RMD, although it is more evident in Indigenous groups with added layers of vulnerability.

Estudio Descriptivo: Detección del Dolor Músculo - Esquelético y Enfermedades Reumáticas Aplicando el COPCORD en la Población Indígena de Saraguro - Ecuador / Descriptive Research: Pain Muscle ­ Esquelectic Detecction and Copcord Aplication Reumatics Copcord Reumatics Illness in Indigena Population of the Saraguro - Ecuador

INTRODUCCIÓN: El instrumento COPCORD permite identificar el dolor músculoesquelético y enfermedades reumáticas como artrosis, artritis reumatoide, lumbalgia. El objetivo de esta investigación es validar y adaptar transculturalmente el instrumento COPCORD en la población indígena como prueba de tamizaje para la detección de estas enfermedades. MÉTODOS: Se trata de un estudio descriptivo, el universo fue de 210 indígenas mayores de 18 años que residen en Saraguro ­ Loja, Ecuador. Durante el periodo del 1 diciembre de 2016 al 30 de enero de 2017. El COPCORD se ajustó al lenguaje español, se realizó adecuación y validación transcultural al contexto del grupo indígena. La información fue ingresada en el programa estadístico Stata Versión 11, se analizó: alfa de Cronbach, matrices de correlación con la prueba de Spearman. Se correlacionó las variables con el diagnóstico establecido por el reumatólogo. RESULTADOS: La edad promedio fue 46.1 años, 64.7 % del género femenino, la prueba de tamizaje para detectar una enfermedad reumática tiene sensibilidad del 92.3 % y especificidad de 57.9 %. La consistencia interna del cuestionario presentó unidimensionalidad en los apartados de carga biomecánica y capacidad funcional; y multidimensionalidad en la trayectoria del dolor músculo - esquelético y comorbilidades. Se observaron correlaciones significativas del COPCORD comparado con la evaluación del reumatólogo. CONCLUSIONES: Al realizar la validación y adaptación transcultural del cuestionario COPCORD se demostró su utilidad como prueba de tamizaje para la detección del dolor músculo - esquelético y enfermedades reumáticas en la población aplicada

BACKGROUND: The COPCORD instrument allows the identification of musculoskeletal painand rheumatic diseases such as osteoarthritis, rheumatoid arthritis, low back pain. The aim of this research is to validate and cross-culturally adapt the COPCORD instrument in the indigenous population as a screening test for the detection of these diseases. METHODS: It is a descriptive study, the universe of 210 indigenous people over 18 years residing in Saraguro - Loja, Ecuador. During the period from December 1, 2016 to January 30, 2017. The COPCORD was adjusted to the Spanish language, a transcultural adaptation and validation was made to the context of the indigenous group. The information was entered into the statistical program of Stata Version 11, analyzed: Cronbach's alpha, correlation matrixes with the Spearman test. The variables were correlated with the diagnosis established by the rheumatologist. RESULTS: The average age was 46.1 years, 64.7 % of the female gender, the screening test to detect a rheumatic disease has sensitivity of 92.3 % and specificity of 57.9 %. The internal consistency of the questionnaire presented a dimensionality in the biomechanical load and functional capacity sections; and multidimensionality in the path of musculoskeletal pain and comorbidities. Significant correlations of the COPCORD were observed compared with the rheumatologist's evaluation. CONCLUSIONS: By carrying out the cross-cultural validation and adaptation of the COPCORD questionnaire, its usefulness could be demonstrated as a screening test for the detection of musculoskeletal pain and rheumatic diseases in the population of Saraguro.of approach including the laparoscopic approach.

Prevalence of Disability in Patients With Musculoskeletal Pain and Rheumatic Diseases in a Population From Cuenca, Ecuador.

OBJECTIVE: The aim of this study was to determine the prevalence of disability in patients with musculoskeletal pain and rheumatic diseases in Cuenca, Ecuador. METHODS: We performed a cross-sectional analytical study with randomized sampling in 4877 subjects, from urban and rural areas. COPCORD (Community Oriented Program for Control of Rheumatic Diseases)-validated questionnaire was administered house-to-house to identify subjects with nontraumatic musculoskeletal pain and rheumatic diseases. The subjects were assessed by rheumatologists for diagnostic accuracy, and the Health Assessment Questionnaire Disability Index was administered to assess functional capacity. A logistic regression analysis was conducted to determine the association of rheumatic diseases with functional disability. RESULTS: Functional disability was found in 221 subjects (73.1% women), with mean age 62 (SD, 18.2) years, residing in rural areas (201 [66.5%]), with education of 6.9 (SD, 5.3) years, and of low income (77 [47.2%]). The value of HAQ-DI was a mean of 0.2 (0-2.9). The real prevalence of physical disability was 9.5%. Moderate and severe disability predominated in activities such as kneeling (4.9% and 3.3%), squatting (4.8% and 2.7%), and leaning to pick up objects (3.7% and 0.9%), respectively. Rheumatic diseases associated with physical disabilities were knee osteoarthritis (95 [31.4%]) and hand osteoarthritis (69 [22.8%]), mechanical low-back pain (43 [14.2%]), fibromyalgia (27 [9.5%]), and rheumatoid arthritis (11 [3.6%]; P < 0.001). CONCLUSIONS: Physical disability was associated with older age, female sex, rural residence, lower education, and lower income. Moderate and severe disability predominated in the dimensions of kneeling, squatting, and picking up objects. Rheumatic diseases associated with disability were hand and knee osteoarthritis, back pain, fibromyalgia, and rheumatoid arthritis.

Prevalence of musculoskeletal disorders and rheumatic diseases in Cuenca, Ecuador: a WHO-ILAR COPCORD study.

The aim of this study was to determine the prevalence of musculoskeletal pain and rheumatic diseases in subjects over 18 years of age from the canton of Cuenca, Ecuador. Cross-sectional analytical community-based study was conducted in subjects over 18 years of age using the validated Community-Oriented Program for the Control of Rheumatic Diseases (COPCORD) questionnaire. Random sampling was used. The questionnaire was administered by standardized health workers. Subjects were visited house by house. Subjects positive for musculoskeletal (MSK) pain in the last 7 days and at some point in life were assessed by rheumatologists to confirm the diagnosis. A total of 4877 subjects participated, with an average age of 42.8 (SD 18.8) years of age; 59.7 % were women; 69.7 % lived in urban areas. 32.5 % reported MSK pain in the last 7 days and 45.7 % at some point in life. The prevalence of knee osteoarthritis was 7.4 %, hand osteoarthritis 5.3 %, low back pain 9.3 %, rheumatoid arthritis 0.8 %, fibromyalgia 2 %, gout 0.4 %, and lupus 0.06 %. Subjects from rural areas reported experiencing more MSK pain in the last 7 days and at some point in life, lower income, poorer health-care coverage, and increased physical activity involving repetitive tasks such as lifting weights or cooking with firewood. MSK pain prevalence was high. Osteoarthritis and low back pain were the most common diseases. Age, sex, physical activity, repetitive tasks, living in a rural area, and lack of health-care coverage were found to be associated with MSK pain.

Características socio-demográficas asociadas a la presencia de dolor músculo-esquelético, en Cuenca-Ecuador / Socio - demographic characteristics associated with the presence of skeletal muscle pain, in Cuenca - Ecuador

RESUMENOBJETIVO: Determinar las características socio-demo-gráficas asociadas a la presencia de dolor músculo-esquelético (MSQ) en personas mayores de 18 años que viven en el Cantón Cuenca.PACIENTES Y MÉTODOS: Estudio transversal analítico, realizado en su-jetos del área rural y urbana, mayores de 18 años, utilizando la metodología COPCORD (Community Oriented Program for the Con-trol of Rheumatic Diseases), adaptada para Ecuador. Se identificaron a los individuos con síntomas reumáticos, casa por casa. La revisión para confirmar el diagnóstico realizó un médico Reumatólogo.El análisis estadístico fue univariado y multi-variado. RESULTADOS:Participaron 2500 personas encuestadas, el 59,6% correspondió al sexo femenino, con una edad promedio de 42,8 años, el 25,5% de los participantes realizaban actividades domésticas. El dolor MSQ se presentó en el 32,2% de las personas, el cual se asoció sig-nificativamente a vivir en el área rural, tener menor escolaridad, ingresos económicos por debajo de 340 dólares, carga física ma-yor de 8 libras, mayor discapacidad funcional y el cocinar con leña en el sector rural. CONCLUSIÓN: El dolor MSQ tiene un alta prevalencia en la población de Cuenca, Ecuador; producien-do discapacidad especialmente en el área rural. se asocia con menor nivel de escola-ridad, ingresos económicos bajos y mayor carga física.

OBJECTIVE: To determine the socio-demographic cha-racteristics associated with the presence of musculoskeletal pain (MSK) in people over 18 years who are living in Cuenca.PATIENTS AND METHODSAn analytical cross-sectional study was con-ducted in subjects of rural and urban areas, who are over 18 years, using the metho-dology COPCORD (Community Oriented Program for the Control of Rheumatic Di-seases) adapted to Ecuador. We identified individuals with rheumatic symptoms, house by house. The revision to confirm the diagnosis was made by a rheumatologist. The statistical analysis was univariate and multivariate. RESULTSA total of 2500 people were surveyed. The 59.6% were female, with an average age of 42.8 years, the 25.5% of participants perfor-med domestic activities. The MSK pain oc-curred in 32.2% of people, which was signi-ficantly associated with living in rural areas, have lower education, lower income to $ 340, increased physical load of 8 pounds, more functional disability, and cooking with firewood in the rural area. CONCLUSIONThe MSK pain has a high prevalence in the population of Cuenca, Ecuador; producing disability especially in rural areas. It is asso-ciated with lower levels of education, lower income and increased physical load

Anticuerpos anti-Ro y anti-La caracterización molecular, correlación clínica e inmunogenética / Anti-Ro and Anti-La antibodies: molecular characterization and clinical immunogenetic correlation

Los anticuerpos anti-Ro y anti-La se vienen estudiando desde hace 25 años, pero su estructura molecular, asociación clínica y relación genética adquieren relevancia en los últimos siete (7) años. Estos anticuerpos tienen especial lugar en la nosología del LES y del síndrome Sjögren. En el lupus neonatal los anticuerpos tienen un papel patológico directo, mientras que en otras condiciones (vasculitis, nefritis), el daño tisular puede resultar por depósito de complejos inmunes en las estructuras vasculares