Analysis on prevalence of syphilis infection and its influence factors among male STD attendants / 吉林大学学报(医学版)

ABSTRACT

Objective:To analyze the prevalence of syphilis infection and influence factors of syphilis infection among the male STD attendants in Songyuan City of Jilin Province, and to provide theoretical basis for the development and implementation of syphilis intervention policy.Methods:A questionnaire survey and serological tests were conducted among the men who went to STD clinic for treatment in the ZhanDong Dermatology Specialist Hospital or Qianguo County Hospital in Songyuan City from 2011 to 2015.Chi-square test was performed to compare the prevalences of syphilis infection between different groups.Multivariable Logistic regression model was used to find the independent factors of syphilis infection among the male STD attendants.Results:Of all 2 000 male STD attendants who involved in the study,the mean age was (34.50±9.03)years old.218 persons (10.90%)of them had sexual behavior with female sex workers in the last three months,433 persons (21.65%)of them had temporary sexual behavior in the last three months,42 persons (2.10%)of them had homosexual behavior in the last three months.Of the respondents,238 persons (11.90%)had a previous diagnosis of sexually transmitted diseases,86 persons of them had gonorrhea (36.13%),43 persons had syphilis (18.07%),15 persons had genital tract Chlamydia (6.30%),55 persons had genital herpes (23.11%),40 persons had genital herpes (16.81%),and 1 person had combined infection of gonorrhea and syphilis. The prevalence of syphilis of 2 000 male STD attendants was 6.4%.From 2011 to 2015,there was a decrease in the prevalences of syphilis (χ2 =44.25,P <0.001).In the last 3 months, the risk of the male STD attendants who had commercial sex with prostitute,temporary sex behavior,homosexual behavior and a history of STD infection to be infected with syphilis in the past were 3.75 times (OR= 3.75,95% CI2.46 - 5.71),2.31 times (OR = 2.31,95% CI 1.56 - 3.41),2.97 times (OR=2.97,95%CI1.33-6.64)and 1.69 times (OR=1.69,95%CI1.07-2.67)than those who did not have those behaviors,respectively. Conclusion:There is a significantly decreasing tendency in the prevalence of syphilis among the male STD attendants in Songyuan City in the past 5 years.The high risk sexual behaviors are the main influence factors of syphilis infection among them.