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Self-reported questionnaires

XY Xiaowei Yu
SZ Songling Zhang
XZ Xiao Yuan Zhang
QW Qun Wang
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All participants completed a web-based questionnaire that included comprehensive demographic information, as well as the five-item version of the International Index of Erectile Function (IIEF-5) for diagnosis of ED; anxiety was assessed by the seven-item Generalized Anxiety Disorder (GAD-7) Scale. Timed intercourse is defined in this study as when more than 70% of sexual intercourse in a month is concentrated around the time of ovulation. The predicted ovulation day is based on various ovulation prediction methods, such as calendar charting, tracking basal body temperature, cervical secretion investigation, and urinary hormone measurement. A GAD-7 with a score of 5 or more is considered an anxiety state.

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