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. 2004;2004(3):CD001209.
doi: 10.1002/14651858.CD001209.pub2.

Antibiotics for preventing recurrent urinary tract infection in non-pregnant women

X Albert  1 , I Huertas, I I Pereiró, J Sanfélix, V Gosalbes, C Perrota
Affiliations

Antibiotics for preventing recurrent urinary tract infection in non-pregnant women

X Albert et al. Cochrane Database Syst Rev. 2004.

Abstract

Background: Urinary tract infection (UTI) is a common health care problem. Recurrent UTI (RUTI) in healthy non-pregnant women is defined as three or more episodes of UTI during a twelve month period. Long-term antibiotics have been proposed as a prevention strategy for RUTI.

Objectives: To determine the efficacy (during and after) and safety of prophylactic antibiotics used to prevent uncomplicated RUTI in adult non-pregnant women.

Search strategy: We searched MEDLINE (1966-April 2004), EMBASE (1980-January 2003), Cochrane Central Register of Controlled Trials( in The Cochrane Library Issue 1, 2004) and reference lists of retrieved articles

Selection criteria: Any published randomised controlled trial where antibiotics were used as prophylactic therapy in RUTI.

Data collection and analysis: Two reviewers independently assessed trial quality and extracted data. Statistical analyses were performed using the random effects model and the results expressed as relative risk (RR) with 95% confidence intervals (CI).

Main results: Nineteen studies involving 1120 women were eligible for inclusion. Antibiotic versus antibiotic (10 trials, 430 women): During active prophylaxis the rate range of microbiological recurrence patient-year (MRPY) was 0 to 0.9 person-year in the antibiotic group against 0.8 to 3.6 with placebo. The RR of having one microbiological recurrence (MR) was 0.21 (95% CI 0.13 to 0.34), favouring antibiotic and the NNT was 1.85. For clinical recurrences (CRPY) the RR was 0.15 (95% CI 0.08 to 0.28). The NNT was 1.85. The RR of having one MR after prophylaxis was 0.82 (95% CI 0.44 to 1.53). The RR for severe side effects was 1.58 (95% CI 0.47 to 5.28) and for other side effects the RR was 1.78 (CI 1.06 to 3.00) favouring placebo. Side effects included vaginal and oral candidiasis and gastrointestinal symptoms. Antibiotic versus antibiotic (eight trials, 513 women): These trials were not pooled. Weekly pefloxacin was more effective than monthly. The RR for MR was 0.31(95% CI 0.19 to 0.52). There was no significant difference in MR between continuous daily and postcoital ciprofloxacin.

Reviewers' conclusions: Continuous antibiotic prophylaxis for 6-12 months reduced the rate of UTI during prophylaxis when compared to placebo. After prophylaxis two studies showed nodifference between groups. There were more adverse events in the antibiotic group. One RCT compared postcoital versus continuous daily ciprofloxacin and found no significant difference in rates of UTIs, suggesting that postcoital treatment could be offered to woman who have UTI associated with sexual intercourse.

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Conflict of interest statement

None known

Figures

1.1
1.1. Analysis
Comparison 1 Antibiotic versus placebo, Outcome 1 Patients with at least one microbiological recurrence during prophylaxis.
1.2
1.2. Analysis
Comparison 1 Antibiotic versus placebo, Outcome 2 Patients with at least one clinical recurrence during prophylaxis.
1.3
1.3. Analysis
Comparison 1 Antibiotic versus placebo, Outcome 3 Severe side effects.
1.4
1.4. Analysis
Comparison 1 Antibiotic versus placebo, Outcome 4 Other side effects.
1.5
1.5. Analysis
Comparison 1 Antibiotic versus placebo, Outcome 5 Patients with at least one microbiological recurrence after prophylaxis.
2.1
2.1. Analysis
Comparison 2 Comparison between antibiotics, Outcome 1 Patients with at least one microbiological recurrence during prophylaxis.
2.2
2.2. Analysis
Comparison 2 Comparison between antibiotics, Outcome 2 Patients with at least one clinical recurrence during prophylaxis.
2.3
2.3. Analysis
Comparison 2 Comparison between antibiotics, Outcome 3 Severe side effects.
2.4
2.4. Analysis
Comparison 2 Comparison between antibiotics, Outcome 4 Other side effects.
2.5
2.5. Analysis
Comparison 2 Comparison between antibiotics, Outcome 5 Patients with at least one microbiological recurrence after prophylaxis.
3.1
3.1. Analysis
Comparison 3 Antibiotics versus non‐antibiotics, Outcome 1 Patients with at least one microbiological recurrence during prophylaxis.
3.2
3.2. Analysis
Comparison 3 Antibiotics versus non‐antibiotics, Outcome 2 Patients with at least one clinical recurrence during prophylaxis.
3.3
3.3. Analysis
Comparison 3 Antibiotics versus non‐antibiotics, Outcome 3 Patients who experience severe side effects.
3.4
3.4. Analysis
Comparison 3 Antibiotics versus non‐antibiotics, Outcome 4 Patients who experience other side effects.
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