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Cochrane Database of Systematic Reviews

Duration of treatment for asymptomatic bacteriuria during pregnancy

Overview of attention for article published in Cochrane database of systematic reviews, November 2015
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About this Attention Score

  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (91st percentile)
  • Good Attention Score compared to outputs of the same age and source (66th percentile)

Mentioned by

1 news outlet
1 policy source
14 tweeters
1 Facebook page
1 Wikipedia page


32 Dimensions

Readers on

190 Mendeley
Duration of treatment for asymptomatic bacteriuria during pregnancy
Published in
Cochrane database of systematic reviews, November 2015
DOI 10.1002/14651858.cd000491.pub3
Pubmed ID

Mariana Widmer, Ivana Lopez, A Metin Gülmezoglu, Luciano Mignini, Ariel Roganti


A previous Cochrane systematic review has shown that antibiotic drug treatment of asymptomatic bacteriuria in pregnant women substantially decreases the risk of pyelonephritis and reduces the risk of preterm delivery. However, it is not clear whether single-dose therapy is as effective as longer conventional antibiotic treatment. To assess the effects of different durations of treatment for asymptomatic bacteriuria in pregnancy. We searched the Cochrane Pregnancy and Childbirth Group's Trials Register (31 August 2015) and reference lists of identified articles. Randomized and quasi-randomized trials comparing antimicrobial therapeutic regimens that differed in duration (particularly comparing single dose with longer duration regimens) in pregnant women diagnosed with asymptomatic bacteriuria. Two review authors independently assessed trials for inclusion and risk of bias, extracted data and checked them for accuracy. We assessed the quality of the evidence using the GRADE approach. We included 13 studies, involving 1622 women. All were comparisons of single-dose treatment with short-course (four- to seven-day) treatments. The risk of bias of trials included in this review was largely unclear, and most trials were at high risk of performance bias. The quality of the evidence was assessed using the GRADE approach. When the any antibiotic agent was used, the 'no cure' rate for asymptomatic bacteriuria in pregnant women was slightly lower for the short-course treatment over the single-dose treatment, although there was evidence of statistical heterogeneity (average risk ratio (RR) 1.28, 95% confidence interval (CI) 0.87 to 1.88; women = 1502, studies = 13; I² = 56%; very low quality evidence). Data from only good quality trials also showed better cure rates with short (four- to seven-day) regimens of the same microbial agent (average RR 1.72, 95% CI 1.27 to 2.33; women = 803, studies = two; I² = 0%; high quality evidence). There was no clear difference in the recurrence of asymptomatic bacteriuria rate between treatment and control groups, whether the same or different microbial agents were used (RR 1.13, 95% CI 0.77 to 1.66; 445 women studies = eight; I² = 0%; very low quality evidence). Differences were detected for low birthweight babies, favoring a short course (four- to seven-day treatment) of the same microbial agent, although the data come from a single trial (RR 1.65, 95% CI 1.06 to 2.57; 714 women; high quality evidence), but no differences were observed for preterm delivery (RR 1.17, 95% CI 0.77 to 1.78; women = 804; studies = three; I² = 23%; moderate quality) or pyelonephritis (RR 3.09, 95% CI 0.54 to 17.55; women = 102; studies = two; I² = 0%; very low quality evidence). Finally, single-dose treatment of any microbial agent was associated with a decrease in reports of 'any side effects' (RR 0.70, 95% CI 0.56 to 0.88; 1460 women, studies = 12; I² = 9%; low quality evidence). Evidence was downgraded for risk of bias concerns in trials contributing data and for imprecise effect estimates (wide confidence intervals crossing the line of no effect, and in some cases, small studies with few events). A single-dose regimen of antibiotics may be less effective than a short-course (four- to seven-day) regimen, but more evidence is needed from large trials measuring important outcomes, such as cure rate. Women with asymptomatic bacteriuria in pregnancy should be treated by the standard regimen of antibiotics until more data become available testing seven-day treatment compared with shorter courses of three- or five-day regimens.

Twitter Demographics

The data shown below were collected from the profiles of 14 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 190 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Spain 2 1%
Mexico 1 <1%
South Africa 1 <1%
Australia 1 <1%
Unknown 185 97%

Demographic breakdown

Readers by professional status Count As %
Student > Master 31 16%
Student > Bachelor 27 14%
Student > Postgraduate 23 12%
Researcher 22 12%
Other 12 6%
Other 35 18%
Unknown 40 21%
Readers by discipline Count As %
Medicine and Dentistry 87 46%
Nursing and Health Professions 17 9%
Social Sciences 9 5%
Biochemistry, Genetics and Molecular Biology 7 4%
Agricultural and Biological Sciences 5 3%
Other 17 9%
Unknown 48 25%

Attention Score in Context

This research output has an Altmetric Attention Score of 22. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 29 September 2020.
All research outputs
of 17,358,590 outputs
Outputs from Cochrane database of systematic reviews
of 11,660 outputs
Outputs of similar age
of 290,122 outputs
Outputs of similar age from Cochrane database of systematic reviews
of 241 outputs
Altmetric has tracked 17,358,590 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 93rd percentile: it's in the top 10% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 11,660 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 25.0. This one has done well, scoring higher than 75% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 290,122 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 91% of its contemporaries.
We're also able to compare this research output to 241 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 66% of its contemporaries.