Roberto Cordeiro de Andrade Teixeira1, Eduardo Ferreira Borba Neto, Georges Basile Christopoulos, Emilia Inoue Sato. 1. From the *Department of Internal Medicine, Universidade Estadual de Ciências da Saúde de Alagoas (UNCISAL), Maceió Alagoas; †Department of Internal Medicine, Universidade de São Paulo (USP); ‡Department of Internal Medicine, Hospital Santa Casa de Maceió, Maceió Alagoas; and §Department of Internal Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo (UNIFESP), São Paulo, Brazil.
Abstract
OBJECTIVE: The aim of this study was to evaluate the association of socioeconomic status and American College of Rheumatology/Systemic Lupus International Collaborating Clinics Damage Index (SDI) score in Brazilian patients with systemic lupus erythematosus (SLE). METHODS: Five hundred twenty-three patients (SLE ACR criteria) 18 years or older who were at 12 months or greater since diagnosis were included. Socioeconomic status was assessed by per-capita income and years of education. Race was categorized as white and nonwhite. The SDI and Mexican SLE Disease Activity Index were used. STATISTICAL ANALYSIS: Mean ± SD and median were used for descriptive analysis. Student t test, Mann-Whitney U test, χ test, and Spearman rank correlation coefficient and univariate and multivariate regression analyses were performed. The level of significance was set at 5% for all statistical tests. RESULTS: Ninety-six percent were female, 51.2% were nonwhite, and the mean age was 37.8 ± 1.4 years. Disease duration was 8.2 ± 10.3 years and formal education was 10.2 ± 3.5 years. Unemployment among patients was 63.7%, with median monthly per-capita income of US $276. Mean SDI score was 1.4 ± 1.52, and 65.6% had some type of damage (SDI ≥1). Patients with SDI of 1 or greater had lower income (P = 0.039). Nonwhite patients had higher SDI than did white patients (P = 0.005). The SDI presented a positive correlation with disease duration (P < 0.001) and age (P < 0.001) and a negative correlation with years of education (P = 0.001). Working patients had lower SDI than did inactive ones (P ≤ 0.001). In a multivariate analysis, older age, higher disease duration, nonwhite race, low income, and out-of-work profile were associated with damage. CONCLUSIONS: Besides nonmodifiable characteristics such as longer disease duration and older age, low income was also associated with damage. Therefore, interventions to give adequate socioeconomic support are necessary to improve outcome, mainly in poorer and nonwhite SLE patients.
OBJECTIVE: The aim of this study was to evaluate the association of socioeconomic status and American College of Rheumatology/Systemic Lupus International Collaborating Clinics Damage Index (SDI) score in Brazilian patients with systemic lupus erythematosus (SLE). METHODS: Five hundred twenty-three patients (SLEACR criteria) 18 years or older who were at 12 months or greater since diagnosis were included. Socioeconomic status was assessed by per-capita income and years of education. Race was categorized as white and nonwhite. The SDI and Mexican SLE Disease Activity Index were used. STATISTICAL ANALYSIS: Mean ± SD and median were used for descriptive analysis. Student t test, Mann-Whitney U test, χ test, and Spearman rank correlation coefficient and univariate and multivariate regression analyses were performed. The level of significance was set at 5% for all statistical tests. RESULTS: Ninety-six percent were female, 51.2% were nonwhite, and the mean age was 37.8 ± 1.4 years. Disease duration was 8.2 ± 10.3 years and formal education was 10.2 ± 3.5 years. Unemployment among patients was 63.7%, with median monthly per-capita income of US $276. Mean SDI score was 1.4 ± 1.52, and 65.6% had some type of damage (SDI ≥1). Patients with SDI of 1 or greater had lower income (P = 0.039). Nonwhite patients had higher SDI than did white patients (P = 0.005). The SDI presented a positive correlation with disease duration (P < 0.001) and age (P < 0.001) and a negative correlation with years of education (P = 0.001). Working patients had lower SDI than did inactive ones (P ≤ 0.001). In a multivariate analysis, older age, higher disease duration, nonwhite race, low income, and out-of-work profile were associated with damage. CONCLUSIONS: Besides nonmodifiable characteristics such as longer disease duration and older age, low income was also associated with damage. Therefore, interventions to give adequate socioeconomic support are necessary to improve outcome, mainly in poorer and nonwhite SLEpatients.
Authors: Bernardo A Pons-Estel; Eloisa Bonfa; Enrique R Soriano; Mario H Cardiel; Ariel Izcovich; Federico Popoff; Juan M Criniti; Gloria Vásquez; Loreto Massardo; Margarita Duarte; Leonor A Barile-Fabris; Mercedes A García; Mary-Carmen Amigo; Graciela Espada; Luis J Catoggio; Emilia Inoue Sato; Roger A Levy; Eduardo M Acevedo Vásquez; Rosa Chacón-Díaz; Claudio M Galarza-Maldonado; Antonio J Iglesias Gamarra; José Fernando Molina; Oscar Neira; Clóvis A Silva; Andrea Vargas Peña; José A Gómez-Puerta; Marina Scolnik; Guillermo J Pons-Estel; Michelle R Ugolini-Lopes; Verónica Savio; Cristina Drenkard; Alejandro J Alvarellos; Manuel F Ugarte-Gil; Alejandra Babini; André Cavalcanti; Fernanda Athayde Cardoso Linhares; Maria Jezabel Haye Salinas; Yurilis J Fuentes-Silva; Ana Carolina Montandon de Oliveira E Silva; Ruth M Eraso Garnica; Sebastián Herrera Uribe; Diana Gómez-Martín; Ricardo Robaina Sevrini; Rosana M Quintana; Sergio Gordon; Hilda Fragoso-Loyo; Violeta Rosario; Verónica Saurit; Simone Appenzeller; Edgard Torres Dos Reis Neto; Jorge Cieza; Luis A González Naranjo; Yelitza C González Bello; María Victoria Collado; Judith Sarano; Soledad Retamozo; María E Sattler; Rocio V Gamboa-Cárdenas; Ernesto Cairoli; Silvana M Conti; Luis M Amezcua-Guerra; Luis H Silveira; Eduardo F Borba; Mariana A Pera; Paula B Alba Moreyra; Valeria Arturi; Guillermo A Berbotto; Cristian Gerling; Carla A Gobbi; Viviana L Gervasoni; Hugo R Scherbarth; João C Tavares Brenol; Fernando Cavalcanti; Lilian T Lavras Costallat; Nilzio A Da Silva; Odirlei A Monticielo; Luciana Parente Costa Seguro; Ricardo M Xavier; Carolina Llanos; Rubén A Montúfar Guardado; Ignacio Garcia de la Torre; Carlos Pineda; Margarita Portela Hernández; Alvaro Danza; Marlene Guibert-Toledano; Gil Llerena Reyes; Maria Isabel Acosta Colman; Alicia M Aquino; Claudia S Mora-Trujillo; Roberto Muñoz-Louis; Ignacio García Valladares; María Celeste Orozco; Paula I Burgos; Graciela V Betancur; Graciela S Alarcón Journal: Ann Rheum Dis Date: 2018-07-25 Impact factor: 19.103