Annals of African Medicine
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ORIGINAL ARTICLE
Year : 2013  |  Volume : 12  |  Issue : 3  |  Page : 160-164

Pattern of asymptomatic bacteriuria among pregnant women attending an antenatal clinic at a private health facility in Benin, South-South Nigeria


1 Department of Family Medicine, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria
2 Department of Public Health, Irrua Specialist Teaching Hospital, Irrua, Nigeria
3 Department of Medical Microbiology, Faith Mediplex, Benin City, Nigeria

Correspondence Address:
Aiyebelehin O Alfred
Department of Family Medicine, Ahmadu Bello University Teaching Hospital, Zaria
Nigeria
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1596-3519.117625

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Background/Objective: The objective was to establish the characteristics of antenatal attendees in Faith Medical Centre, a private health facility in Benin City who have asymptomatic bacteriuria (ASB) as well as to determine the relationship between ASB and socioeconomic status. Methods: It was a descriptive, cross-sectional study involving 240 pregnant women who presented in the course of antenatal care from January to April 2009. With the aid of a questionnaire patients who were recruited for the study had their socio-demographic data and relevant gynecological and drug history recorded. A physical examination was done to document temperature, height, weight and symphysiofundal height. A clean-catch midstream urine sample was collected for microscopy and culture. White blood cell count of≥5/hpf and/or bacteria count of≥1/hpf of urine was considered significant for urine microscopy and a single colony count of ≥105/ml from two consecutive urine samples was considered significant for urine culture. Results: The prevalence of ASB was 13.8% by urine culture and 43.8% by urine microscopy among antenatal attendees in Faith Medical Centre, Benin City. There was no relationship between ASB and socio-economic factor (P value=0.1267). There was also no significant specific trend between ASB and age (P value=0.0578). Using urine culture as gold standard, the sensitivity of urine microscopy was 90.9%, the specificity was 49.3%, the positive predictive value was 22.2% and the negative predictive value was 97.1%. Conclusion: ASB in pregnancy is common in Faith Mediplex and has no statistically significant relationship with socioeconomic status. The current practice of diagnosing and treating ASB based on urine microscopy needs to be reviewed since the specificity of urine microscopy is very low. Also the practice of screening pregnant women only at the time of booking can lead to under-diagnosis of ASB. This is so because most women who develop this condition later in the course of antenatal care will be missed."


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