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2.
RMD Open ; 10(3)2024 Jul 23.
Artículo en Inglés | MEDLINE | ID: mdl-39043615

RESUMEN

OBJECTIVES: Chronic inflammation promotes cardiovascular risk in rheumatoid arthritis (RA). Biological disease-modifying antirheumatic drugs (bDMARDs) improve disease activity and cardiovascular disease outcomes. We explored whether bDMARDs influence the impact of disease activity and inflammatory markers on long-term cardiovascular risk in RA. METHODS: We studied 4370 participants without cardiovascular disease in a 10-country observational cohort of patients with RA. Endpoints were (1) major adverse cardiovascular events (MACE) encompassing myocardial infarction, stroke and cardiovascular death; and (2) any ischaemic cardiovascular events (iCVE) including MACE plus revascularisation, angina, transient ischaemic attack and peripheral arterial disease. RESULTS: Over 26 534 patient-years, 239 MACE and 362 iCVE occurred. The interaction between 28-joint Disease Activity Score with C-reactive protein (DAS28-CRP) and bDMARD use was significant for MACE (p=0.017), suggesting the effect of DAS28-CRP on MACE risk differed among bDMARD users (n=515) and non-users (n=3855). DAS28-CRP (per unit increase) is associated with MACE risk in bDMARD non-users (HR 1.21 (95% CI 1.07 to 1.37)) but not users (HR 0.69 (95% CI 0.40 to 1.20)). The interaction between CRP (per log unit increase) and bDMARD use was also significant for MACE (p=0.011). CRP associated with MACE risk in bDMARD non-users (HR 1.16 (95% CI 1.04 to 1.30)), but not users (HR 0.65 (95% CI 0.36 to 1.17)). No interaction was observed between bDMARD use and DAS28-CRP (p=0.167) or CRP (p=0.237) for iCVE risk. CONCLUSIONS: RA activity and inflammatory markers associated with risk of MACE in bDMARD non-users but not users suggesting the possibility of biological-specific benefits locally on arterial wall independently of effects on systemic inflammation.


Asunto(s)
Antirreumáticos , Artritis Reumatoide , Enfermedades Cardiovasculares , Inflamación , Humanos , Artritis Reumatoide/complicaciones , Artritis Reumatoide/tratamiento farmacológico , Masculino , Femenino , Persona de Mediana Edad , Antirreumáticos/uso terapéutico , Antirreumáticos/efectos adversos , Enfermedades Cardiovasculares/etiología , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/mortalidad , Anciano , Biomarcadores , Proteína C-Reactiva/metabolismo , Proteína C-Reactiva/análisis , Factores de Riesgo , Índice de Severidad de la Enfermedad
3.
Lupus ; 33(9): 979-985, 2024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38844422

RESUMEN

OBJECTIVE: Stress and trauma are psychosocial factors with an impact on the course of systemic lupus erythematosus (SLE). The influence of violence on SLE has not been entirely explored, even though women (including patients with rheumatic diseases) are a vulnerable population to any form of violence. This study aims to assess the prevalence and impact of intimate partner violence (IPV) on health-related quality of life in women with SLE. METHODS: An observational, cross-sectional, and analytical study was conducted at a rheumatology clinic of a university hospital from September 2022 and September 2023. We evaluated the presence of IPV in 85 women with SLE with the Hurt, Insulted, Threatened with Harm and Screamed at (HITS) questionnaire and the Index of Spouse Abuse (ISA), and quality of life with LupusQoL. RESULTS: The prevalence by HITS score of past-year IPV was 24.4% and of lifetime IPV was 36.5%. Past-year non-physical violence was present in 17.1% of patients by ISA, and 27.1% were victims in their lifetime. While in physical violence, 7.3% were victims in the previous year and 21.2% in their lifetime. The total quality of life and the emotional domain by LupusQoL were diminished in victims of past-year IPV, compared to those who weren't exposed (p = .018 and p = .036, respectively). Past-year HITS score correlated with the Physician Global Assessment (PGA) (rho = 0.301, p = .006), while lifetime HITS score correlated with PGA (rho = 0.329, p = .002) and SLEDAI-2K (rho = 0.277, p = .010). CONCLUSION: We found that one in four women suffered IPV in the previous year, and those who were exposed had diminished quality of life. Also, the severity of the abuse correlated with disease activity. Our findings emphasize the importance of comprehensive care for patients with SLE.


Asunto(s)
Violencia de Pareja , Lupus Eritematoso Sistémico , Calidad de Vida , Humanos , Lupus Eritematoso Sistémico/psicología , Femenino , Estudios Transversales , Adulto , Persona de Mediana Edad , Violencia de Pareja/psicología , Violencia de Pareja/estadística & datos numéricos , Prevalencia , Encuestas y Cuestionarios
4.
Rheumatol Int ; 44(10): 2139-2145, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-38914773

RESUMEN

Sexual dysfunction (SD) has been associated with worse quality of life and higher disease activity in patients with rheumatic diseases, yet it is still not regularly addressed during routine rheumatologic evaluations. This study aimed to determine the prevalence of sexual dysfunction in patients with rheumatoid arthritis (RA) or systemic lupus erythematosus (SLE) and evaluate their perception of their sexual health. We performed a retrospective study in an outpatient rheumatology clinic to evaluate patients over 18 years old with a diagnosis of RA or SLE through the Spanish version of the Arizona Sexual Experiences Scale (ASEX) and the Sexual Health Perception Survey (SHEPS), a questionnaire of 6 items designed in our clinic. Additionally, we applied the Functional Assessment of Chronic Illness Therapy - Fatigue (FACIT-F version 4) and the Hospital Anxiety and Depression Scale (HADS). A total of 567 patients were evaluated with SHEPS, most of whom were women with a median age of 50 years (IQR: 34) and a median disease duration of 5 years (IQR: 9). Through the ASEX, we found that 67% of the patients with RA and 60% of the patients with SLE experienced SD. Patients reported the level of sex drive, arousal, and the ability to achieve orgasms as the areas with the most difficulties. Most patients did not know their disease could affect their sexuality and had never addressed these issues with their rheumatologists, but almost all of them were willing to. Our findings highlight the importance of addressing sexual health issues regularly during rheumatologic evaluations.


Asunto(s)
Artritis Reumatoide , Lupus Eritematoso Sistémico , Disfunciones Sexuales Fisiológicas , Salud Sexual , Humanos , Lupus Eritematoso Sistémico/psicología , Lupus Eritematoso Sistémico/complicaciones , Lupus Eritematoso Sistémico/epidemiología , Femenino , Artritis Reumatoide/psicología , Artritis Reumatoide/epidemiología , Artritis Reumatoide/complicaciones , Persona de Mediana Edad , Masculino , Estudios Transversales , Adulto , Estudios Retrospectivos , Disfunciones Sexuales Fisiológicas/psicología , Disfunciones Sexuales Fisiológicas/epidemiología , Disfunciones Sexuales Fisiológicas/etiología , Disfunciones Sexuales Psicológicas/psicología , Disfunciones Sexuales Psicológicas/epidemiología , Disfunciones Sexuales Psicológicas/etiología , Autoimagen , Calidad de Vida , Prevalencia , Encuestas y Cuestionarios
7.
J Clin Rheumatol ; 30(5): e143-e148, 2024 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-38753050
8.
Rheumatol Int ; 2024 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-38767662

RESUMEN

Women with autoimmune rheumatic disease (ARDs) experience difficulties with BF in addition to those concerning their own disease. The aim of this study is to identify the impact factors as infant feeding attitude, the level of BF knowledge, BF self-efficacy, and the sociodemographic have in the intention to BF in women with ARDs. We performed an observational, retrospective, and analytical study. Reproductive-age women (18-50 years old) with ARDs with prior pregnancy history and who filled out self-reported BF surveys as part of the Rheumatology Integral Care Program were included. Sociodemographic and clinical characteristics were retrieved from medical charts. We analyzed three validated BF questionnaires. Sixty-five participants with a mean age of 41.32 ± 7.48 were evaluated. Of these, 63 (97%) women agreed with BF in the first 6 months. The most prevalent infant feeding attitude was neutral with 42 (64.6%) women. The most common level of BF knowledge was poor with 45 (69.2%) patients. There were significant correlations of BF knowledge with education years (p = < 0.001, r = 0.464) and age (p = 0.049, r=-0.245). A significant correlation was found between BF self-efficacy and age (p = 0.039, r = 0.257). Attitude toward BF was significantly associated with education level > 9 years (OR = 3.400; 95% CI = 1.091-10.593) and a history of miscarriage (OR = 3.670; 95% CI = 1.051-12.813). Although most women with ARDs agreed with BF, we identified a poor level of BF knowledge and a neutral infant feeding attitude as the most predominant. By identifying this data in women with ARDs, BF practices may be improved.

9.
Reumatol. clín. (Barc.) ; 20(3): 142-146, Mar. 2024.
Artículo en Inglés | IBECS | ID: ibc-231126

RESUMEN

Objective: This retrospective study aimed to perform the first external validation of the ACR/EULAR classification criteria for inflammatory myopathy (IIM) in a Mexican dynamic cohort where the patients were evaluated with clinical and laboratory values. As secondary objectives, we presented the clinical characteristics of the patients and included antibodies other than anti Jo1 to evaluate their impact on our population. Methodology: This study included 70 patients with IIM and 70 patients with differential diagnoses of IIM, according to the absolute score of the classification criteria. We obtained sensitivity and specificity in the modality without biopsy, and as an exploratory analysis, we added other antibodies from the myositis extended panel. We analyzed the area under the curve (AUC) of three models: score without antibodies, with anti Jo1 and with any antibody. Results: The ACR/EULAR criteria showed increased specificity and at least similar sensitivity to that of the original cohort (85% sensitivity and 92% specificity), with a cohort point of >55%. When we classified patients into definite, probable, possible, and no IIM categories, by adding the extended myopathy panel, 6 of the 10 patients initially classified as “no IIM” changed their classification to “Probable IIM” and 4 to “Definite IIM”; of the 16 patients classified as “probable IIM,” 15 changed their classification to “Definite IIM.” Conclusion: Considering the limitations of this study, we concluded that the 2017 EULAR/ACR criteria for IIM classification are sensitive and specific for classifying patients with IIM in the Mexican population. Additionally, the addition of antibodies other than anti-Jo1 may improve performance in certain populations.(AU)


Objetivo: Este estudio retrospectivo tuvo como objetivo realizar la primera validación externa de los criterios de clasificación ACR/EULAR para miopatía inflamatoria (MII) en una cohorte dinámica de pacientes mexicanos que fueron evaluados en consulta y con muestras de laboratorio. Como objetivos secundarios presentamos las características clínicas de los pacientes e incluimos anticuerpos distintos al anti-Jo1 para evaluar su impacto en nuestra población. Metodología: Este estudio incluyó a 70 pacientes con MII y 70 pacientes con diagnóstico diferencial de MII, según la puntuación absoluta de los criterios de clasificación. Obtuvimos la sensibilidad y la especificidad en la modalidad sin biopsia, y como análisis exploratorio añadimos otros anticuerpos del panel extendido de miositis. Analizamos el área bajo la curva (AUC) de tres modelos: puntuación sin anticuerpos, con anti-Jo1 y con cualquier otro anticuerpo. Resultados: Los criterios ACR/EULAR mostraron una mayor especificidad y una sensibilidad, al menos similar a la de la cohorte original (85% de sensibilidad y 92% de especificidad), con un punto de cohorte de >55%. Cuando clasificamos a los pacientes en las categorías de definitiva, probable, posible y sin MII, al agregar el panel ampliado de miopatía, 6 de los 10 pacientes clasificados inicialmente como «Sin MII» cambiaron su clasificación a «Probable MII» y 4 a «MII Definitiva»; de los 16 pacientes clasificados como «Probable MII», 15 cambiaron su clasificación a «MII Definitiva». Conclusión: Considerando las limitaciones de este estudio, concluimos que los criterios de 2017 de la EULAR/ACR para la clasificación de la MII son sensibles y específicos para clasificar a los pacientes con MII en la población mexicana. Además, la adición de anticuerpos que no sean anti-Jo1 puede mejorar la estadificación en ciertas poblaciones.(AU)


Asunto(s)
Humanos , Masculino , Femenino , Enfermedades Musculares/diagnóstico , Enfermedades Musculares/clasificación , Anticuerpos/administración & dosificación , Diagnóstico Diferencial , Sensibilidad y Especificidad , Estudios Retrospectivos , Estudios de Cohortes , México , Reumatología , Enfermedades Reumáticas
10.
Reumatol Clin (Engl Ed) ; 20(3): 142-146, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38494305

RESUMEN

OBJECTIVE: This retrospective study aimed to perform the first external validation of the ACR/EULAR classification criteria for inflammatory myopathy (IIM) in a Mexican dynamic cohort where the patients were evaluated with clinical and laboratory values. As secondary objectives, we presented the clinical characteristics of the patients and included antibodies other than anti Jo1 to evaluate their impact on our population. METHODOLOGY: This study included 70 patients with IIM and 70 patients with differential diagnoses of IIM, according to the absolute score of the classification criteria. We obtained sensitivity and specificity in the modality without biopsy, and as an exploratory analysis, we added other antibodies from the myositis extended panel. We analyzed the area under the curve (AUC) of three models: score without antibodies, with anti Jo1 and with any antibody. RESULTS: The ACR/EULAR criteria showed increased specificity and at least similar sensitivity to that of the original cohort (85% sensitivity and 92% specificity), with a cohort point of >55%. When we classified patients into definite, probable, possible, and no IIM categories, by adding the extended myopathy panel, 6 of the 10 patients initially classified as "no IIM" changed their classification to "Probable IIM" and 4 to "Definite IIM"; of the 16 patients classified as "probable IIM," 15 changed their classification to "Definite IIM." CONCLUSION: Considering the limitations of this study, we concluded that the 2017 EULAR/ACR criteria for IIM classification are sensitive and specific for classifying patients with IIM in the Mexican population. Additionally, the addition of antibodies other than anti-Jo1 may improve performance in certain populations.


Asunto(s)
Autoanticuerpos , Miositis , Humanos , Estudios Retrospectivos , Miositis/diagnóstico , Biopsia , Sensibilidad y Especificidad
12.
Rheumatol Int ; 44(5): 831-837, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-37610651

RESUMEN

Grading the quality of care in patients with systemic lupus erythematosus and determining its relationship with care satisfaction may recognize gaps that could lead to better clinical practice. Eighteen quality indicators (QIs) were recently developed and validated for patients with SLE based on the 2019 EULAR management recommendations. Few studies have analyzed the relationship between quality of care and care satisfaction in patients with lupus. This was a cross-sectional study. We included patients at least 18 years old who met the EULAR/ACR 2019 classification criteria for SLE. We interviewed patients and retrieved data from medical records to assess their compliance with a set of 18 EULAR-based QIs. We calculated each QI fulfillment as the proportion of fulfilled QI divided by the number of eligible patients for each indicator. Care satisfaction was evaluated with the satisfaction domain of LupusPRO version 1.7. Spearman correlation coefficient was used to determine the relationship between quality of care and care satisfaction. Seventy patients with a median age of 33 (IQR 23-48) were included, 90% were women. Overall adherence was 62.29%. The median care satisfaction was 100. Global adherence to the 18-QIs and the care satisfaction score revealed no correlation (r = 0.064, p = 0.599). Higher QI fulfillment was found in the group with remission versus the moderate-high activity group (p = 0.008). In our study, SLE patients in remission had higher fulfillment of quality indicators. We found no correlation between the quality of care and satisfaction with care.


Asunto(s)
Lupus Eritematoso Sistémico , Indicadores de Calidad de la Atención de Salud , Humanos , Femenino , Adolescente , Masculino , Estudios Transversales , Satisfacción del Paciente , Lupus Eritematoso Sistémico/diagnóstico , Lupus Eritematoso Sistémico/terapia
16.
Int J Rheum Dis ; 26(12): 2498-2508, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37888904

RESUMEN

AIM: This study aims to assess the association of obesity and CRP concentrations in adult patients with rheumatoid arthritis (RA), and its influence on measures of disease activity. METHODS: A comprehensive search was performed using Scopus, Web of Science, MEDLINE, and EMBASE, from the time of their inception to November 2021. Observational studies that evaluated the association between CRP concentrations and obesity or overweight in patients with RA were considered eligible. Correlation coefficients were pooled using the inverse variance method, while effect sizes were pre-calculated for adjusted standardized regression coefficients (ß). RESULTS: A total of 10 studies, which comprised 4024 patients, were included in this systematic review. Individually, most studies report a significant association between CRP concentrations and a higher body mass index or other adiposity measures, but the statistical significance was not sustained when pooling their data together. Through the estimates provided in the present review, it is noted that CRP tends to be more elevated in female patients with RA that have a higher BMI. However, this association is not present in men. CONCLUSION: CRP tends to be elevated in female patients with RA that have a higher BMI. Further research is required to assess this possible sex-related difference and to aid shared decision-making in order to avoid over-treatment and increased burden in patients with obesity and RA. PROSPERO registration number: CRD42022314580.


Asunto(s)
Artritis Reumatoide , Sobrepeso , Masculino , Adulto , Humanos , Femenino , Sobrepeso/diagnóstico , Sobrepeso/epidemiología , Proteína C-Reactiva , Obesidad/diagnóstico , Obesidad/epidemiología , Artritis Reumatoide/diagnóstico , Índice de Masa Corporal
17.
Adv Rheumatol ; 63(1): 36, 2023 07 28.
Artículo en Inglés | MEDLINE | ID: mdl-37507812

RESUMEN

BACKGROUND: Systemic inflammation, documented before rheumatoid arthritis (RA) diagnosis, is associated with accelerated atherosclerosis. We aimed to compare the prevalence of carotid plaque (CP) in RA patients in the first five years since diagnosis and healthy controls, and to determine disease characteristics associated with the presence of subclinical atherosclerosis in RA patients. METHODS: This was a cross-sectional study. We recruited 60 RA patients in the first five years since diagnosis and 60 matched healthy controls. Carotid ultrasound was performed to detect the presence of CP and measure carotid-intima media thickness (cIMT). Subclinical atherosclerosis was considered as the presence of CP and/or increased cIMT. Distribution was evaluated with the Kolmogorov-Smirnov test. Comparisons were made with Chi-square or Fisher's exact test for qualitative variables and Student's t or Mann-Whitney's U test for quantitative variables. A p-value < 0.05 was considered significant. RESULTS: There were no differences in the demographic characteristics between RA patients and controls. The mean disease duration was 2.66 ± 1.39 years. A higher prevalence of CP (30.0% vs. 11.7%, p = 0.013), bilateral CP (18.3% vs. 3.3%, p = 0.008), increased cIMT (30.0% vs. 6.7%, p = 0.001), and subclinical atherosclerosis (53.3% vs. 18.3%, p = < 0.001) was found in RA patients. RA patients with subclinical atherosclerosis were older (56.70 years vs. 50.00 years, p = 0.002), presented a higher prevalence of dyslipidemia (53.1% vs. 14.3%, p = 0.002), and higher prevalence of classification in moderate-high disease activity category measured by DAS28-CRP (68.8% vs. 35.7%, p = 0.010). The latter variable persisted independently associated with subclinical atherosclerosis in the binary logistic regression (OR 6.11, 95% CI 1.51-24.70, p = 0.011). CONCLUSIONS: In the first five years since diagnosis, higher prevalence of subclinical atherosclerosis, including CP was found in RA patients. Carotid ultrasound should be considered part of the systematic CVR evaluation of RA at the time of diagnosis.


Asunto(s)
Artritis Reumatoide , Aterosclerosis , Enfermedades de las Arterias Carótidas , Humanos , Estudios Transversales , Grosor Intima-Media Carotídeo , Factores de Riesgo , Artritis Reumatoide/complicaciones , Artritis Reumatoide/diagnóstico , Artritis Reumatoide/epidemiología , Enfermedades de las Arterias Carótidas/diagnóstico por imagen , Enfermedades de las Arterias Carótidas/epidemiología , Aterosclerosis/diagnóstico , Aterosclerosis/epidemiología
19.
Clin Rheumatol ; 42(9): 2453-2460, 2023 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-37335407

RESUMEN

INTRODUCTION/OBJECTIVES: Active autoimmune rheumatic diseases (ARDs) before conception increase the risk of flares and adverse pregnancy outcomes. We aimed to construct and validate a reproductive behavior questionnaire in Spanish for patients with ARDs to assess their knowledge and their reproductive behavior. METHOD: We constructed and validated a reproductive behavior questionnaire in two phases: (1) a literature review followed by interviews of reproductive-age female patients, and (2) a cross-sectional study to complete validation. Convenience sampling was carried out with 165 female patients: 65 participated in the cross-cultural adaptation phase and 100 in the validation phase. The internal consistency was evaluated by estimating Cronbach's alpha and tetrachoric correlation coefficients. Values ≥ 0.40 were considered acceptable (p < 0.05). RESULTS: The initial instrument included 38 questions. Thematic analysis identified 8 important dimensions or topics, which were combined to create the Rheuma Reproductive Behavior interview questionnaire. A final total of 41 items across 10 dimensions were obtained. The test-retest analysis showed perfect correlations in 34 of the 41 items, moderate in 6 items, and negative in one of the items. The mean age of the patients was 35.65 years (SD 9.02), and the mean time to answer the survey was 13.66 min (SD 7.1). CONCLUSIONS: The Rheuma Reproductive Behavior questionnaire showed good reliability and consistency capturing patients' reproductive health knowledge and reproductive behavior. Key Points • We designed and validated a questionnaire to assess reproductive health knowledge and reproductive behavior among female patients with ARDs. • The questionnaire was comprehensible for participants, and showed good reliability and consistency capturing reproductive knowledge and behavior. • This tool may aid in the design of strategies to improve reproductive decision-making for female patients with ARDs.


Asunto(s)
Conducta Reproductiva , Síndrome de Dificultad Respiratoria , Enfermedades Reumáticas , Humanos , Femenino , Adulto , Reproducibilidad de los Resultados , Estudios Transversales , Encuestas y Cuestionarios , Psicometría/métodos
20.
Rheumatol Int ; 43(7): 1253-1264, 2023 07.
Artículo en Inglés | MEDLINE | ID: mdl-37129609

RESUMEN

The attitudes toward emerging COVID-19 vaccines have been of great interest worldwide, especially among vulnerable populations such as patients with rheumatic and musculoskeletal diseases (RMDs). The aim of this study was to analyze the relationship between the nationwide number of COVID-19 cases and deaths, and vaccine acceptance or hesitancy of patients with RMDs from four patient care centers in Mexico. Furthermore, we explored differences in acceptance according to specific diagnoses: rheumatoid arthritis (RA) and systemic lupus erythematosus (SLE). This ecological study was a secondary analysis of a cross-sectional study using a validated questionnaire to measure vaccine acceptance. We generated a global Likert scale to evaluate overall attitudes toward the COVID-19 vaccine. We analyzed data from 1336 patients from March to September 2021: 85.13% (1169) were women, with a mean age of 47.87 (SD 14.14) years. The most frequent diagnoses were RA (42.85%, 559) and SLE (27.08%, 393). 635(47.52%) patients were unvaccinated, 253(18.93%) had one dose and 478(35.77%) had two doses. Of all participating patients, 94% were accepting toward the COVID-19 vaccine. Vaccine acceptance remained consistently high throughout the study. However, differences in vaccine acceptance are identified when comparing diagnoses. The peak of the national epidemic curve coincided with an increase in hesitancy among patients with RA. Contrastingly, patients with SLE became more accepting as the epidemic curve peaked. Mexican patients show high acceptance of the COVID-19 vaccine, influenced in part by a patient's specific diagnosis. Furthermore, vaccine acceptance increased mirroring the curve of COVID-19 cases and deaths in the country. This should be taken into consideration when updating recommendations for clinical practice.


Asunto(s)
Artritis Reumatoide , COVID-19 , Lupus Eritematoso Sistémico , Enfermedades Reumáticas , Vacunas , Humanos , Femenino , Persona de Mediana Edad , Masculino , Vacunas contra la COVID-19 , COVID-19/epidemiología , COVID-19/prevención & control , Estudios Transversales , Enfermedades Reumáticas/epidemiología , Artritis Reumatoide/epidemiología , Lupus Eritematoso Sistémico/epidemiología , Vacunación
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