Prevalence And Risk Factors For Female Sexual Dysfunction:an Exploratory Study

Objective1. To detect the prevalence and possible risk factors of sexual dysfunction in women underwent routine gynecologic health care in Peking Union Medical College Hospital (PUMCH).2. To evaluate the association between pelvic floor muscle strength and sexual functioning.3. To investigate the relationship of sexual function with delivery mode history.4. To determine the effect of pelvic floor muscle on sexual function in POP patients.Materials and MethodsFrom Jan2011to Jun,152women underwent gynecological health care in PUMCH were enrolled in this study. Female sexual function was evaluated with The Chinese version female sexual function index (CVFSFI).87women underwent vaginal examination to determine the degree of pelvic floor muscle strength by Oxford system. The contraction of Type1and Type2Muscle Fibers was monitored by biofeedback technology. The EMG muscle evaluation and pressure measurement were given as well.Results1. Based on total sexual function score,81(53.3%) out of152women between the ages of25and60years had sexual dysfunction. Domain scores suggestive of difficulties related to desire was prevalent in92.8%; arousal in84.2%; lubrication in71.1%; orgasm in68.4%; poor satisfaction in73.7%; and pain in69.1%.2. Logistic regression showed that high education level was an independent protective factor for arousal (ORO.265;95%CI0.091to0.0775) and lubrication (ORO.351;95%CI0.127to0.975). Higher income was an independent protective factor (OR0.014;95%CI0.217to0.732) as well. By contrast, older age (OR1.11;95%CI1.01to1.21) was identified as a risk factor that may cause FSD.3. Strong type2pelvic muscle Fiber was identified as another independent protective factor for lubrication (ORO.455;95%CI0.205to0.980). The anti-tired capability of Type 2Muscle Fibers was also an independent protective factor for female sexual function (ORO.045;95%CI0.461to0.992).4. No significant differences of sexual function or pelvic floor muscle strength were detected in delivery mode history (p>0.05).5. Pelvic organ prolapse had an effect on lubrication (p=0.049).The strength of pelvic muscle, both the type1and type2muscle fibers, was observed significantly lower in POP patients (p=0.049, p=0.029, respectively).6. It was inaccurately to evaluate the strength of the type1and type2muscle fibers by Oxford system (r=0.416, r=0.455, respectively).ConclusionsThe prevalence of female sexual dysfunction increases with age. The independent protective factors include higher education, higher income and type2pelvic muscle fiber in healthy condition. Mode of delivery history appeared to have minimal effect on sexual function or pelvic muscle. FSD in POP patients was associated with the dysfunction of pelvic muscle. Standardized clinical evaluation of pelvic muscle strength for sexual function evaluation should be developed.