<p>P-values were obtained from Chi-square test for Nugent score among three groups. Bonferroni correction was used for pairwise comparison. Condom vs. IUD: p = 0.005, α = 0.017, significant; Condom vs. Rhythm: p = 0.384, α = 0.017, not significant; IUD vs. Rhythm: p = 0.237, α = 0.017, not significant.</p