Detection of Chlamydia trachomatis in 4089 patients from STD clinic

Objective:To investigate Chlamydia trachomatis infection among patients of STD clinic.Methods:A total of 4089 samples from male urogential tract and female endocervix were collected during Apr,2004 to Dec,2005 and detected for the antigen of Chlamydia trachomatis by Microtrak Ⅱ EIA and for pus cells by microscopy.Results:Out of 576 positive samples,475 were from male patients and 101 from female.The overall infection rate was 14.09%,and it was 15.66% for male and 9.57% for female.Among the patients with Chlamydia infection,50.74%(241/475)males and 48.51%(49/101)females did not show any signs of inflammation.The infection rate was 14.83% in group aged 20~29 years,15.86% in group aged 30~39 years and 8.19% in group aged over 40,the young and middle-aged groups are predominant groups for Chlamydia infection.There was no significant difference of infection rates between the group aged 20~29 and 30~39 years(P0.05),however,the infection rate of the two groups was significant higher than that in group over 40(P0.01).Conclusion:For control the spread of Chlamydia infection,it is important to screen and detect Chlamydia trachomatis among the high risk people.