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Testing for Chlamydia trachomatis: time trends in positivity rates in the canton of Basel-Stadt, Switzerland
- Source :
- Epidemiology and Infection
- Publication Year :
- 2012
- Publisher :
- Cambridge University Press, 2012.
-
Abstract
- SUMMARYNational health statistics report a 2·5-fold increase in laboratory-confirmed Chlamydia trachomatis (CT) cases over the last decade in Switzerland where no CT screening programme exists. We obtained essential denominator information to describe the epidemiology of CT in the canton of Basel-Stadt, an urban canton in north-western Switzerland. Laboratories reporting at least two CT infections from Basel-Stadt residents to the SFOPH in 2010 provided demographic and test-related data. CT positivity rates were calculated for 2002–2010. The influences of test year, age, sex and laboratory on CT positivity were investigated in a multivariable model. Positivity differed between sexes and age groups. In our sample of 32 034 records, female and male CT positivity rates were 4·7% and 11·1%, respectively. Test year was significantly associated with test outcome in the multivariable analysis but no time trend was observed. CT positivity did not change over the past 9 years in Basel-Stadt. In contrast to other European countries without CT screening, we found no evidence that the observed increase of Chlamydia cases in the national notification system represents an epidemiological trend, but rather results from an increased testing frequency.
- Subjects :
- Adult
Male
Pediatrics
medicine.medical_specialty
Adolescent
Epidemiology
Chlamydia trachomatis
medicine.disease_cause
Young Adult
Age groups
Risk Factors
medicine
Prevalence
Humans
Multivariable model
Young adult
Chlamydia
Child
Aged
National health
Aged, 80 and over
business.industry
Time trends
Infant
positivity rate
Chlamydia Infections
Middle Aged
medicine.disease
Original Papers
time trend
Infectious Diseases
Child, Preschool
surveillance
Female
business
Switzerland
Demography
Subjects
Details
- Language :
- English
- ISSN :
- 14694409 and 09502688
- Volume :
- 141
- Issue :
- 9
- Database :
- OpenAIRE
- Journal :
- Epidemiology and Infection
- Accession number :
- edsair.doi.dedup.....0d640cfaecf5f2889e05aff7aed2e3da