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(a) Comparison of UU infection rates in different age groups: 30-40 years vs. <30 years: ∗∗∗P < 0.001. 30-40 years vs. >41 years: ∗∗P < 0.01. >40-yeas vs. <30 years: ∗P < 0.05. (b) Comparison of UU infection rate in different marriage status: remarriage vs. first marriage. (c) Comparison of UU infection rates in different fertility states: primary infertility vs. secondary infertility vs. prefertility physical examination.
