Prevalence of leukocyturia in a cohort of French asymptomatic aircrews.

Abstract Objectives Sexually transmitted infections (STIs) can cause leukocyturia. We aimed at estimating the prevalence of leukocyturia in asymptomatic aircrews and the STIs proportion in those presenting a leukocyturia. Methods The LEUCO survey was a prospective cohort study conducted among aircrews from 14 October 2019 to 13 March 2020, at the Toulon aeromedical center, in France. All participants have performed a dipstick urinalysis. Those positive for leukocyturia were offered a STIs screening by nucleic acid amplification test (NAAT) for Chlamydia trachomatis, Neisseria gonorrhoeae, Mycoplasma genitalium and Trichomonas vaginalis. Results Among 2236 (1912 men and 324 women) asymptomatic participants included, 127 (36 men and 91 women) were positive for leukocyturia. The prevalence of leukocyturia was 1.9% (1.3-2.6) in men and 28.1% (23.3-33.3) in women (p Conclusions In asymptomatic individuals, leukocyturia is rare in men and more common in women. In asymptomatic adults under 35 years old with leukocyturia, multiplex NAAT shows high proportion of STIs and might be useful in improving STIs detection.