Prevalência da artrite idiopática juvenil em crianças com idades entre 6 e 12 anos na cidade de Embu das Artes, SP

Abstract

The aim of the study was to study the prevalence of juvenile idiopathic arthritis (JIA) in school children in the city of Embu das Artes in São Paulo State. 2880 school children from seven public schools, aged between 6 and 12 years, were evaluated (clinical findings) by a pediatric rheumatologist. A board certified Pediatric Rheumatologist evaluated the subjects with suspected inflammatory arthropathy. Children with higher suspicion were referred to a specialized service. One hundred and forty-one children have presented abnormalities on examination of musculoskeletal system, with isolated pain on palpation the most common finding in the first evaluation (60.9%), with improvement in almost all cases in the second examination. Most of the abnormalities were related to recent injuries or congenital malformations. Six children have clinical findings suggestive of chronic arthropathy and were referred to a specialized pediatric rheumatology clinic. Of these, a 12 year-old girl fulfilled the criteria for JIA. The other diagnoses were aseptic necrosis of the hip (P = 1) of and post-trauma synovitis (P = 4). The prevalence of JIA in children aged between 6 and 12 years was 1/2.880 (or 0.34/1.000).

Prevalence of juvenile idiopathic arthritis in schoolchildren from the city of São Paulo, the largest city in Latin America

“…In a systematic review of the literature, Thierry et al [7] reported that the incidence and prevalence of JIA greatly varied from one study to another (1.6 to 23/100,000 children and 3.8 to 400/100, 000, respectively) according to the methodology used. Studies based on physical examination performed in different populations showed a prevalence ranging from 34.9 to 37/100,000 children [16]. In cases of national or regional databases, the prevalence varied between 16 and 140/100,000 children [14,17].…”

“…In addition, the absence of a unified registration in many countries, populations or hospitals prevents more accurate collection of epidemiological data. However, over recent decades, several population studies have been conducted in different countries, with different methodologies depending on the structure of each locality [10][11][12][13][14][15][16][17][18][19]. The objective of most of these studies is to assist in planning the structure of health services for the care of suspected and diagnosed cases [8,9].…”

“…In a study with a smaller city close to the size of the city of São Paulo (Embu das Artes), Yamashita et al [16] observed a prevalence of 34/100,000 children by rheumatological physical examination of schoolchildren aged 6 to 12 years, all from public schools. However, this study did not evaluate children aged 5 years old or younger.…”

“…In the last decades, several methodologies have been used to determine the prevalence of JIA. However there is no design standardization in this various international studies [10][11][12][13][14][15][16][17][18]. Different methods have been used to obtain the prevalence, including data collection through population and hospital databases, questionnaires or interviews with professionals in health centers or parents/caregivers and physical examinations in the sample as a whole.…”

Índices e fatores relacionados à adesão ao tratamento farmacológico em pacientes com Artrite Idiopática Juvenil

“…Nos EUA, a taxa de incidência estimada para AIJ varia de 4 a 14/100.000 crianças e a prevalência varia de 1,6 a 86,1/100.000 (Helmick et al, 2008). Já no Brasil, os poucos estudos existentes revelaram prevalência que variam de 0.34 a 1.96/1000 em crianças em idade escolar até 16 anos no estado de São Paulo (Yamashita et al, 2013;Schinzel et al, 2019).…”