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Objective: Identify associated factors for recurrent wheezing (RW) in male and female infants. Methods: Cross-sectional multicentric study using the standardized questionnaire from the Estudio Internacional sobre Sibilancias en Lactantes (EISL). The questionnaire was applied to parents of 9345 infants aged 12–15 months at the time of immunization/routine visits. Results: One thousand two hundred and sixty-one (13.5%) males and nine hundred sixty-three (10.3%) females have had RW (≥3 episodes), respectively (p10 colds episodes (OR = 3.46; IC 95% 2.35–5.07), air pollution (OR = 1.33; IC 95% 1.12–1.59), molds at home (OR = 1.23; IC 95% 1.03–1.47), Afro-descendants (OR = 1.42; IC 95% 1.20–1.69), bronchopneumonia (OR = 1.41; IC; 1.11–1.78), severe episodes of wheezing in the first year (OR = 1.56; IC 95% 1.29–1.89), treatment with bronchodilators (OR = 1.60; IC 95% 1.22–2,1) and treatment with oral corticosteroids (OR = 1,23; IC 95% 0.99–1,52). Associated factors for RW for females were passive smoking (OR = 1.24; IC 95% 1.01−1,51), parents diagnosed with asthma (OR = 1.32; IC 95% 1,08−1,62), parents with allergic rhinitis (OR = 1.26; IC 95% 1.04–1.53), daycare attendance (OR = 1.48; IC 95% 1.17−1,88), colds in the first 6 months of life (OR = 2.19; IC 95% 1.69–2.82), personal diagnosis of asthma (OR = 1.84; IC 95% 1.39–2.44), emergency room visits (OR = 1.78; IC 95% 1.44–2.21), nighttime symptoms (OR = 2.89; IC 95% 2.34–3.53) and updated immunization (OR = 0.62; IC 95% 0.41−0.96). Conclusion: There are differences in associated factors for RW between genders. Identification of these differences could be useful to the approach and management of RW between boys and girls.

Abstract Introduction: In Brazil, glomerulopathies are the third leading cause of chronic renal disease, accounting for 11% of dialysis patients. Studies on the prevalence of this disease in Northeastern Brazil are scarce. Objective: The aim was to describe the findings of biopsies and to conduct a comparative analysis on the clinical laboratory presentation of primary glomerulopathies (PG) and secondary glomerulopathies (SG). Methods: This was a retrospective study conducted at two public teaching hospitals in the state of Pernambuco, Northeastern Brazil. Results: A total of 1151 biopsies performed between 1998 and 2016 were analyzed. The sample consisted of 670 biopsies of native kidneys, after excluding extra glomerular diseases and unsuitable material. PG were more frequent than SG (58% vs. 42%). There was a prevalence among PG of focal segmental glomerulosclerosis (43%). Membranoproliferative glomerulonephritis and collapsing glomerulopathy, accounted for 9% and 3% of the PG, respectively. For SG, the main etiologies were lupus nephritis (67%) and infections (10%). Female sex, hematuria and an elevated level of creatinine were related to a greater chance of SG, at multivariate analysis. An increase of proteinuria reduced this chance. Nephrotic syndrome was more common among the PG, while urinary abnormalities and nephritic syndrome prevailed in patients with SG. Conclusion: This is the first registry of glomerulopathies in Northeastern Brazil. It also presents a comparative analysis of the main clinical laboratory abnormalities of PG and SG, and includes the current classifications of glomerular diseases.