Prevalence of asymptomatic bacteriuria among pregnant women in Benin City, Nigeria.


A semi-quantitative screening for asymptomatic bacteriuria was carried out in the first trimester of 500 consecutive pregnant women in Benin City. The purpose was to provide baseline data and rational therapy for asymptomatic bacteriuria in pregnant women. Of the 500 women screened, 433 clinical specimens showed significant bacteriuria, representing an incidence of 86.6%. Of this number, 38 (7.4%) were of mixed bacterial colonies while 395 (91%) were of single bacterial colonies. Staphylococcus aureus (29.8%), Escherichia coli (29.1%) and Klebsiella pneumoniae (21.5%) were the most frequently isolated pathogens. The high incidence of asymptomatic bacteriuria in pregnancy correlated significantly (P < 0.05) with the observed high proportion of pyuria. On average, sensitivity of the pathogens was ciprofloxacin 99.7%; ceftazidime 81.6%; co-trimoxazole 79.4%; augmentin 71.4%; nalidixic acid 61.7%; nitrofurantoin 61.%; gentamycin 56.9% and ampicillin 25.4%. S. aureus was most sensitive, while Proteus mirabilis was least sensitive among the pathogens. Rational therapy of asymptomatic bacteriuria in pregnant women may prevent associated risks such as pyelonephritis and pre-eclampsia.


  • Publisher Full Text
  • Authors

    Akerele J

    Abhulimen P

    Okonofua F


    Journal of obstetrics and gynaecology : the journal of the Institute of Obstetrics and Gynaecology 21:2 2001 Mar pg 141-4

    Pub Type(s)

    Journal Article



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