RESULTS The instruments most frequently used were single-item VAS and Biberoglu and Behrman pain score , while multidimensional inventories were used in few studies .
The results of clinical studies in CPP are more frequently based on one-dimensional measurements .
RATIONALE Many types of  pain assessment are available to research ers carrying out clinical trials in chronic pelvic pain ( CPP ) , ranging from a single-item scale to multidimensional inventories .
AIM Our objective was to investigate which assessment s of pain are more commonly used in clinical trials on CPP .
A randomized, comparative trial of triptorelin depot (D-Trp6-LHRH) and danazol in the treatment of endometriosis.
To compare treatment efficacy and safety parameters  a total of 55 premenopausal women with histologically proven endometriosis ( stage II-IV ) were r and omized to receive the LHRH-analogue depot triptorelin ( n = 30 ) or the steroid danazol ( n = 25 ) for a total of 24 weeks . Immediately after cessation of the endocrine therapy a second-look operation was performed . Four as well as 24 weeks after the end of treatment patients were seen for re-evaluation of clinical symptoms and safety parameters . Estradiol suppression was significantly more pronounced with triptorelin , while the free and rogenic index rose with danazol . Both substances were equally effective in reducing endometriotic implants ( 58 % and 51 % , respectively ) . Dysmenorrhea was absent at the end of medical therapy in both treatment groups . Dyspareunia and pelvic pain decreased at least by 50 % . Red blood count , thrombocytes , liver enzymes and the atherogenic index rose with danazol , while the urinary calcium/creatinine ratio showed a marked elevation with triptorelin .  Adverse effects were mainly due to the hypoestrogenism of the LHRH analogue and the and rogenic/anabolic properties of the steroid . Triptorelin  and  danazol are equally effective in treating endometriosis . Therefore , choice of treatment should be based on the patient 's medical history and the pharmacological profile of each substance
RESULTS The instruments most frequently used were single-item VAS and Biberoglu and Behrman pain score , while multidimensional inventories were used in few studies .
The results of clinical studies in CPP are more frequently based on one-dimensional measurements .
RATIONALE Many types of  pain assessment are available to research ers carrying out clinical trials in chronic pelvic pain ( CPP ) , ranging from a single-item scale to multidimensional inventories .
AIM Our objective was to investigate which assessment s of pain are more commonly used in clinical trials on CPP .