Fig 1.
(A) During the baseline questionnaire, participants were asked to provide retrospective information starting from their sexual debut. Consecutive questionnaires asked backed until the last previously filled in questionnaire. (B) Study inclusion flowchart. CT = Chlamydia trachomatis. CSI = Chlamydia Screening Implementation. NECCST = Netherlands Chlamydia Cohort Study.
Table 1.
Classification of an individual’s CT status based on previous infections from screening and/or questionnaire responses. Serostatus is not included in the CT status.
Table 2.
Participant characteristics stratified by CT antibody trajectory. Characteristics (n (%)) of participants for longitudinal analysis (n = 1,405) stratified by CT antibody trajectory. Lifestyle characteristics and factors related to CT are assessed at follow-up unless otherwise specified.
Fig 2.
Overview of CT antibody trajectories from baseline to follow-up.
Number (N) and percentage (%) are presented. Solid circle = seropositive, Dashed circle = seronegative. CT = Chlamydia trachomatis.
Fig 3.
Factors included in multivariable logistic regression analyses for factors of seropersistence compared to non-persistent seropositivity.
Complete analyses for alle factors can be found in S3 Table. CT = Chlamydia trachomatis.
Fig 4.
Factors included in multivariable logistic regression analyses for seropositivity stratified by CT history.
Complete analyses for alle factors can be found in S4 Table. CT = Chlamydia trachomatis.