Hyperuricemia is associated with low cardiorespiratory fitness levels and excess weight in schoolchildren [Hiperuricemia está associada com baixos níveis de aptidão cardiorrespiratória e excesso de peso em escolares]

Objective to evaluate the possible association between hyperuricemia and cardiorespiratory fitness levels/nutritional profile,grouped into a single variable,in schoolchildren. method cross-sectional study of 2335 students from elementary schools,aged 7–17 years of both genders,stratified by conglomerates of a municipality in southern brazil. body mass index (bmi) was calculated and cardiorespiratory fitness (crf) was assessed by the 6-minute run/walk test. the bmi and crf were grouped into a single variable,considering: (1) low and normal weight/fit; (2) low and normal weight/unfit; (3) overweight-obesity/fit; (4) overweight-obesity/unfit. the poisson regression (prevalence ratio,pr) was used for the association between hyperuricemia and bmi/crf ratio with 95% confidence intervals and differences were considered significant when p < 0.05. results there is an association,although subtle,between the presence of hyperuricemia with low levels of crf and the presence of excess weight,when grouped into a single variable. boys and girls with this condition have higher prevalence of hyperuricemia (pr: 1.07; p = 0.007 for boys; pr: 1.10; p < 0.001 for girls). conclusion together,excess weight and low levels of cardiorespiratory fitness are associated with the presence of hyperuricemia in schoolchildren. © 2017 sociedade brasileira de pediatria