Abstract
PURPOSE: We investigated the relationship of painful bladder filling and urinary urgency to somatic and chronic pain symptoms in women with overactive bladder without an interstitial cystitis/bladder pain syndrome diagnosis. MATERIALS AND METHODS: Women who met overactive bladder criteria based on symptoms were recruited, including 183 (83.9%) from the community and 35 (16.1%) from the urology clinic to complete validated questionnaires assessing urinary symptoms, somatic symptoms and pain syndromes. Participants were categorized into 1 of 3 groups, including 1) neither symptom, 2) either symptom or 3) both symptoms, based on their reports of painful urinary urgency and/or painful bladder filling. Multivariable regression analyses were performed to determine factors predictive of having painful urgency and/or painful filling. RESULTS: Of 218 women with overactive bladder 101 (46%) had neither painful bladder filling nor urinary urgency, 94 (43%) had either symptom and 23 (11%) had both symptoms. When controlling for age, women with either or both urological pain symptoms were more likely to have irritable bowel syndrome, chronic pelvic pain and temporomandibular disorder than women in the neither group. Additionally, these women had higher pain intensity and somatic symptoms scores than women with neither symptom. CONCLUSIONS: The majority of women with overactive bladder who had not been diagnosed with interstitial cystitis/bladder pain syndrome reported painful urgency and/or painful filling. Experiencing painful urgency and/or filling was associated with an increased somatic symptom burden and greater pain intensity. These findings support the hypothesis that overactive bladder and interstitial cystitis/bladder pain syndrome diagnoses may represent a continuum of bladder hypersensitivity.