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  1. Screening for chlamydial infections and the risk of ectopic pregnancy in a county in Sweden : ecological analysis.

    Article - En anglais


    To analyse trends in rates of genital chlamydial infection and ectopic pregnancy between 1985 and 1995 in a county in Sweden.


    Uppsala county where screening for chlamydial infection, treatment, and contact tracing has been widespread and where ectopic pregnancies are recorded.


    Rates of chlamydial infections and ectopic pregnancy between 1985 and 1995 were calculated for women aged 20-39 years.

    Poisson and linear regression were used to examine the association between the risk of ectopic pregnancy and the current rates of chlamydial infection and rates of chlamydial infection from up to 5 years earlier.

    Main outcome measures 

    Rates of chlamydial infection per 100 examinations, rates of ectopic pregnancy per 1000 pregnancies, rate ratios and 95% confidence intervals for an increas in chlamydial infections of 5 new cases per 100 examinations.


    103 870 cervical samples from women aged 15-39 years were analysed ; 5648 (5.4%) were positive for chlamydia. 51 630 pregnancies were analysed ; 930 (1.8%) were ectopic.

    Both rates declined over time.

    For women aged 20-24 years there was a strong correlation between the rate of ectopic pregnancy and the rate of chlamydial infection in the same year (r=0.93, P<0.001) ; among older women correlations were stronger with rates of chlamydial infection occurring 1 or 2 years earlier. (...)

    Mots-clés Pascal : Chlamydiose, Bactériose, Infection, Dépistage, Corrélation, Gestation ectopique, Etude comparative, Facteur risque, Milieu écologique, Evaluation, Femelle, Suède, Europe, Homme, Appareil génital femelle pathologie, Gestation, Education santé

    Mots-clés Pascal anglais : Chlamydiosis, Bacteriosis, Infection, Medical screening, Correlation, Ectopic pregnancy, Comparative study, Risk factor, Ecological environment, Evaluation, Female, Sweden, Europe, Human, Female genital diseases, Pregnancy, Health education

    Logo du centre Notice produite par :
    Inist-CNRS - Institut de l'Information Scientifique et Technique

    Cote : 98-0301990

    Code Inist : 002B05B02H. Création : 27/11/1998.