spp. a Cause of Nongonococcal Urethritis? A Systematic Review and Meta-Analysis

, have been increasingly reported to be implicated in NGU. However, there are still many contradictions about their pathogenic role in NGU. spp. infection in China relative to the world average.A systematic review and meta-analysis was conducted following standard guidelines for meta-analysis. The quality of included studies was assessed by Newcastle-Ottawa scale. spp. was observed in both the NGU and control groups in China., is an etiological agent in NGU. More detailed studies of these two species in China and the world could contribute to a better understanding of the epidemiology and pathogenesis, and facilitate the development of better strategies for treatment and prevention of NGU