P033 Impact of breastfeeding on Juvenile Idiopathic Arthritis outcomes

Abstract Background Juvenile idiopathic arthritis (JIA) is the most common, chronic rheumatic disease of childhood. The aetiology is still unclear. Over the past few years, several studies have investigated the association between JIA and environmental exposures such as infections and parental smoking. However, data concerning the influence of past breastfeeding on the presentation and the severity of JIA remain scarce and still a matter of debate (1, 2).The aim of this study was to determine the influence of breastfeeding history on the pattern and severity of JIA. Methods A cross-sectional monocentric study was carried out on JIA patients according to International League of Associations for Rheumatology (ILAR). Demographic, clinical and biological data were collected from medical records. Breastfeeding data were obtained by interviewing mothers. Patients were divided into two groups: group 1 (G1) stands for JIA patients breastfed over 6 months and group 2 (G2) stands for JIA non-breastfed patients or patients breastfed 6 months. The statistical study revealed that G1 had significantly lesser occurrence of coxitis than G2 (57.9% vs