Abstract: Objective: To assess the ability of syphilis serological test in STD laboratories of secondary and higher medical institutions, maternal and child institutions and disease control institutions in Shandong Province. Methods: Blinded samples were distributed to the 560 STD laboratories for the Treponemal Serologic Tests(TT) and Nontreponemal Serologic Tests (NTT). The results of the tests were analyzed. Results: Of 560 laboratories involved, 536 were excellent (95.71%), 19 were qualified (3.39% ) and 5 were nonqualified (0.89%). The coincidence rate of TT,NTT and quantitative detections were 99.82%, 98.54% and 96.43% respectively. Conclusion: The level of quality of syplhilis serological detection is high in the 560 laboratories but the standardized construction of STD laboratories and personnel training should be strengthened.

Key words: syphilis, serological, detection, evaluation among laboratories