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 .
Effects of 3 month therapy with danazol after laparoscopic surgery for stage III/IV endometriosis: a randomized study.
The effect of treatment with danazol was evaluated with respect to expectant management after laparoscopic conservative surgery . All patients conservatively operated at laparoscopy for stage III-IV endometriosis from July 1994 to October 1996 were requested to enter the study . Patients who underwent surgery for recurrent endometriosis were excluded from the study , as well as patients who had taken hormonal therapies before laparoscopy . Informed consent was obtained from 77 women who were r and omized after surgery to treatment with danazol 600 mg daily for 3 months ( n = 36 ) or to expectant management ( n = 41 ) . All patients were regularly followed up every 6 months for evaluation of fertility , recurrence of pain symptoms and disease . During the follow-up , six ( 55 % ) of the 11 infertile women allocated to danazol and eight ( 50 % ) of the 16 given no treatment became pregnant ( not significant ) . Moderate/severe pelvic pain recurred during follow-up in seven ( 23 % ) of the 31 women with pelvic pain allocated to the danazol group and nine ( 31 % ) of the 29 allocated to no treatment ; the respective cumulative pain recurrence rates at 12 months were 26 and 34 % ( log rank test , not significant ) . Three women ( 8.3 % ) treated with danazol and six ( 15 % ) who received no treatment had disease recurrence as demonstrated by gynaecological examination and /or pelvic ultrasonography ( not significant ) . Our results do not demonstrate a significant advantage of 3 month danazol therapy after laparoscopic surgery for stage III-IV endometriosis with respect to postoperative expectant management
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 .