“…For the BoP analysis, ten studies were included to investigate the association of PCOS on gingival bleeding [ 14 , 15 , 16 , 17 , 19 , 21 , 22 , 33 , 34 , 36 ]. Five studies compared BoP levels of PD patients with and without PCOS [ 16 , 17 , 21 , 33 , 34 ], four studies compared BoP levels of non-PD patients with and without PCOS [ 17 , 21 , 34 , 36 ] and four studies compared BoP between PCOS and controls [ 14 , 15 , 19 , 22 ] ( Figure 4 ). Overall, this analysis had 594 and 490 individuals with PCOS and without PCOS, respectively.…”