Uncomplicated urinary tract infections in Swedish primary care; etiology, resistance and treatment.


Journal

BMC infectious diseases
ISSN: 1471-2334
Titre abrégé: BMC Infect Dis
Pays: England
ID NLM: 100968551

Informations de publication

Date de publication:
13 Feb 2019
Historique:
received: 15 06 2018
accepted: 06 02 2019
entrez: 15 2 2019
pubmed: 15 2 2019
medline: 28 5 2019
Statut: epublish

Résumé

Uncomplicated urinary tract infection (uUTI) is common and a majority of patients are prescribed antibiotics. There is little knowledge about antibiotic resistance in urine samples from patients with uUTI in primary health care (PHC). The aim was to describe antibiotic treatment, bacterial findings, the prevalence of resistant E.coli and factors associated with antibiotic resistance. The aim was also to compare the prevalence of resistant E.coli in clinical practice with the prevalence of resistant E.coli in routine microbiological laboratory data. This observational study in PHC setting started in November 2014 and ended in March 2016. Women aged 17 years and older with symptoms indicating uUTI from eight PHCs were included. Questionnaires were used to retrieve anamnestic data. All urine samples were sent to the local laboratory of microbiology for diagnostic analysis and susceptibility testing. Proportions of resistant E.coli were compared with corresponding data from the regional laboratory. Urine cultures were analysed in 304 women with a median age of 46 (IQR 32-66) years. Bacterial growth was found in 243 (80%) of urine samples, and E.coli in 72% of the positive samples. A total of 80% of detected E.coli isolates were susceptible to all tested antimicrobials and resistance rates to ciprofloxacin were lower than reported from the local clinical laboratory. Antibiotic treatment within the last year was independently associated with antibiotic resistant E.coli in the urine sample adjusted OR 4.97 (95% CI 2.04-12.06). A total of 74% of the women were treated with antibiotics. The most prescribed was pivmecillinam followed by nitrofurantoin. Antibiotic resistance in E.coli was low. Antibiotic treatment within the last year was associated with antibiotic resistant E.coli. Data from the clinical microbiology laboratory indicates that laboratory data may overestimate antibiotic resistance and lead to an unnecessary change in empiric antibiotic treatment of uUTI in primary care. The empirically prescribed antibiotics, were inline with Swedish treatment recommendations for uUTI.

Sections du résumé

BACKGROUND BACKGROUND
Uncomplicated urinary tract infection (uUTI) is common and a majority of patients are prescribed antibiotics. There is little knowledge about antibiotic resistance in urine samples from patients with uUTI in primary health care (PHC). The aim was to describe antibiotic treatment, bacterial findings, the prevalence of resistant E.coli and factors associated with antibiotic resistance. The aim was also to compare the prevalence of resistant E.coli in clinical practice with the prevalence of resistant E.coli in routine microbiological laboratory data.
METHODS METHODS
This observational study in PHC setting started in November 2014 and ended in March 2016. Women aged 17 years and older with symptoms indicating uUTI from eight PHCs were included. Questionnaires were used to retrieve anamnestic data. All urine samples were sent to the local laboratory of microbiology for diagnostic analysis and susceptibility testing. Proportions of resistant E.coli were compared with corresponding data from the regional laboratory.
RESULTS RESULTS
Urine cultures were analysed in 304 women with a median age of 46 (IQR 32-66) years. Bacterial growth was found in 243 (80%) of urine samples, and E.coli in 72% of the positive samples. A total of 80% of detected E.coli isolates were susceptible to all tested antimicrobials and resistance rates to ciprofloxacin were lower than reported from the local clinical laboratory. Antibiotic treatment within the last year was independently associated with antibiotic resistant E.coli in the urine sample adjusted OR 4.97 (95% CI 2.04-12.06). A total of 74% of the women were treated with antibiotics. The most prescribed was pivmecillinam followed by nitrofurantoin.
CONCLUSIONS CONCLUSIONS
Antibiotic resistance in E.coli was low. Antibiotic treatment within the last year was associated with antibiotic resistant E.coli. Data from the clinical microbiology laboratory indicates that laboratory data may overestimate antibiotic resistance and lead to an unnecessary change in empiric antibiotic treatment of uUTI in primary care. The empirically prescribed antibiotics, were inline with Swedish treatment recommendations for uUTI.

Identifiants

pubmed: 30760219
doi: 10.1186/s12879-019-3785-x
pii: 10.1186/s12879-019-3785-x
pmc: PMC6375206
doi:

Substances chimiques

Anti-Bacterial Agents 0
Ciprofloxacin 5E8K9I0O4U
Nitrofurantoin 927AH8112L

Types de publication

Journal Article Observational Study

Langues

eng

Sous-ensembles de citation

IM

Pagination

155

Subventions

Organisme : Southern Regional Health Care Committee Sweden
ID : 1

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Auteurs

Helena Kornfält Isberg (H)

Department of Clinical Sciences, Malmö, Family Medicine, Lund University, Malmö, Sweden. helena.isberg@med.lu.se.

Eva Melander (E)

Regional Centre for Communicable Disease Control, Malmö, Sweden.
Department of Translational Medicine, Lund University, Malmö, Sweden.

Katarina Hedin (K)

Department of Clinical Sciences, Malmö, Family Medicine, Lund University, Malmö, Sweden.
Futurum, Region Jönköping County and Department of Medical and Health Sciences, Linköping University, Linköping, Sweden.

Sigvard Mölstad (S)

Department of Clinical Sciences, Malmö, Family Medicine, Lund University, Malmö, Sweden.

Anders Beckman (A)

Department of Clinical Sciences, Malmö, Family Medicine, Lund University, Malmö, Sweden.

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Classifications MeSH