Abstract：
INTRODUCTION =: Bacteriuria during pregnancy is a frequent and important cause of morbidity and complications. Data on its occurrence in pregnant adolescents are still scarce. METHODS =: A cross-sectional study was conducted at a tertiary teaching hospital in São Paulo, Brazil. All adolescents (≤ 18 years) who came for prenatal care between January 2010 and January 2016 were included. Sociodemographic characteristics, medical history, obstetric history, and the results of laboratory tests were selected. A urine sample was aseptically collected from each patient to undergo microscopic and culture analysis. RESULTS =: A total of 388 pregnant adolescents averaging 15.30 ± 1.24 years of age were included. The frequency of bacteriuria in this group was 17.01% (66/388). The lack of sports practice (OR=8.65, 95% CI=1.09-68.39), the fact that pregnancy was desired (OR=2.17, 95% CI=1.08-4.34), and the use of hormonal methods of contraception (OR=2.46, 95% CI=1.04-5.84) turned out to be independent risk factors for bacteriuria. Protective factors were identified as late coitarche (OR = 0.75, 95% CI=0.57-0.98) and a urine culture analysis at a later gestational age (OR = 0.94, 95% CI=0.90-0.98). The most often isolated pathogens were Escherichia coli (49%) and Streptococcus agalactiae (18%). CONCLUSION =: Bacteriuria among pregnant adolescents is a relatively common condition. The infection risk of the urinary tract was increased by physical inactivity and seemingly by the influence of behavioral and sexual factors. Such results can help to identify patients at risk, favoring the early diagnosis of the urinary tract infections and optimizing prenatal care.
摘要：
简介=：怀孕期间的细菌尿是发病率和并发症的常见和重要原因。关于其在怀孕青少年中发生的数据仍然很少。方法=：在圣保罗的三级教学医院进行了一项横断面研究，巴西。纳入2010年1月至2016年1月期间接受产前护理的所有青少年（≤18岁）。社会人口统计学特征，病史,产科史,并选择了实验室测试的结果。从每个患者无菌收集尿液样品以进行显微镜和培养分析。结果=：共纳入388名怀孕青少年，平均年龄为15.30±1.24岁。本组菌尿发生率为17.01%(66/388)。缺乏运动实践(OR=8.65,95%CI=1.09-68.39),需要怀孕的事实（OR=2.17，95％CI=1.08-4.34），使用激素避孕方法（OR=2.46，95％CI=1.04-5.84）是菌尿的独立危险因素。保护因素被确定为晚期妊娠（OR=0.75，95％CI=0.57-0.98）和晚期胎龄的尿培养分析（OR=0.94，95％CI=0.90-0.98）。最常见的病原体是大肠杆菌（49％）和无乳链球菌（18％）。结论：在怀孕的青少年中，细菌尿是一种相对常见的疾病。由于缺乏身体活动以及行为和性因素的影响，尿路感染的风险增加。这样的结果可以帮助识别有风险的患者，有利于尿路感染的早期诊断和优化产前护理。
