الفهرس 
Urinary tract infections leading to preterm labor caused by some bacterial isolates
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Abstract
Background: Preterm labor (PTL) is responsible for most cases of neonatal death. In most of these cases, the causes of PTL have not been established although several risk factors have been described. Therefore, the aim of this study was to investigate risk factors for PTL before 37 gestational weeks among Egyptian women. Methods: In this case-control study, 117 pregnant women without risk factors for PTL were chosen. The control group (n= 45) had term labor (gestational weeks {u2265} 37 weeks), and the case group (n= 72) had PTL (gestational weeks < 37 weeks). The two groups were screened for urinary and vaginal infections. The role of different demographic characteristics, patient history, and clinical signs were also investigated. Results: Using univariate logistic regression, several risk factors were identified in this study, including age < 20 years, black race, previous abortion, menses vaginal bleeding, infection signs on speculum examination, a vaginal pH > 5, a positive whiff test, Trichomonas vaginalis infection, Mycoplasma hominis infection, heavy vaginal growth, and any vaginal growth of Gram-negative bacilli. Urinary tract infection with any colony count was not associated with PTL