First, we conducted a series of bivariate logistic regression analyses to identify the variables to include in the initial model building process. In addition, the participants in the short gap group were less likely to be married than were those with an overlapping relationship STIs were diagnosed according to standard clinical procedures in Russia. Mathematical models and empirical studies have demonstrated that sexual concurrency i. Gap between sexual partnerships, Consecutive sexual relationships, Serial monogamous relationships, Partner concurrency, STI, Russia Introduction The likelihood that someone will transmit or acquire a sexually transmitted infection STI depends on the biologic characteristic of the infectious agent eg. The number of sexual partners in the past year was not included in the initial model because of its high correlation with the relationship gaps. Although stepwise exclusion and inclusion procedures might be less efficient than formal model fit comparisons, this methodology was adopted because it is widely used and easier to explain. The first criterion was the report of any of the following STIs in the last year:
HIV prevention programs for Russian STI clinic patients should therefore focus also on prolonging the gap between consecutive, monogamous sexual partnerships. First, we conducted a series of bivariate logistic regression analyses to identify the variables to include in the initial model building process. Thus, the number of sexual partners in the past year was determined according to the following criteria: SAS software version 9. We did not collect information about sexual contact more than 1 year before the interview, so we treated participants who reported only one partner in the past year as having a long gap days or more. Furthermore, women with a history of STI diagnoses reported significantly shorter gaps than did women without a history of STI diagnoses [ 7 ]. Petersburg, Russia, to participate in a cross-sectional study between July and February Table 1 Characteristics of the study participants by the length of gap between relationships, St. We used data collected from two STI clinics in St. These cutoff points were chosen because studies that investigate the number of sexual relationships in Russia typically use 3—6 months recall periods [ 9 - 11 ]. Among the respondents, The study concluded that interventions targeting individuals with multiple partnerships separated by short gaps would reduce STI prevalence more effectively than interventions targeting groups with a high number of sexual partnerships separated by longer gap. However, both of these studies were descriptive, and neither used inferential analysis techniques to examine whether short gaps could independently predict STI risk. The number of sexual partners in the past year was not included in the initial model because of its high correlation with the relationship gaps. Abstract We conducted a cross-sectional study to determine whether the time between two consecutive sexual partnerships gap is associated with sexually transmitted infections STIs in Russia. Gap between sexual partnerships, Consecutive sexual relationships, Serial monogamous relationships, Partner concurrency, STI, Russia Introduction The likelihood that someone will transmit or acquire a sexually transmitted infection STI depends on the biologic characteristic of the infectious agent eg. Another study, a random digit dialing survey conducted between and showed that the median gap for 18 to 39 years old Seattle residents was Mathematical models and empirical studies have demonstrated that sexual concurrency i. As shown in Table 1 , gender distribution, having ever injected drugs, and rates of homosexual intercourse and unprotected sex were similar among the participants with different gaps. A self-administered questionnaire was used to collect information including demographic characteristics, medical information, sexual activity, and drug-use habits. Compared to the long gap group, the short gap group had a higher percentage of people aged 25 years or younger Finally, to verify the robustness of the results, we compared the model fit indices and conducted a stratified analysis to examine whether inclusion of the number of sexual partners in the past year changed our results. Short gaps OR 2. We created three dummy variables for the gap and used the long gap as the reference group. The following steps were used to build the final model for a multivariate analysis.
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