“…2,[43][44][45][46] Several studies that did not identify statistical significance still noted a trend of increased reinfection in younger participants. [47][48][49][50][51][52][53][54][55] The relationship between race or ethnicity and reinfection varied by study. Non-Hispanic blacks had a significantly higher risk of chlamydia reinfection in some studies; 2,37,39,42,44,46,56 however, other studies found no association with reinfection, 35,38,41,45,[57][58][59] despite a high proportion of black participants in several of these studies.…”