Global Study of Women's Health
|First Received Date ICMJE||February 20, 2009|
|Last Updated Date||February 19, 2014|
|Start Date ICMJE||February 2009|
|Primary Completion Date||Not Provided|
|Current Primary Outcome Measures ICMJE
||Impact of endometriosis among women worldwide|
|Original Primary Outcome Measures ICMJE||Not Provided|
|Change History||Complete list of historical versions of study NCT00849173 on ClinicalTrials.gov Archive Site|
|Current Secondary Outcome Measures ICMJE
||Provide a frame-work for future studies of women diagnosed with endometriosis which collect long term quality of life issues as well as personal and economic costs of endometriosis.|
|Original Secondary Outcome Measures ICMJE||Not Provided|
|Current Other Outcome Measures ICMJE||Not Provided|
|Original Other Outcome Measures ICMJE||Not Provided|
|Brief Title ICMJE||Global Study of Women's Health|
|Official Title ICMJE||Global Study of Women's Health|
Endometriosis, a condition in which the lining of the uterus grows on nearby tissues, is a common condition that affects women of reproductive age worldwide. The diagnosis of endometriosis is usually made at surgery. The most common symptom is pelvic pain. This pain may occur at the same time as menstrual bleeding, at other times of the cycle, or during or after sexual intercourse. Previous studies reveal the diagnosis of endometriosis is often delayed between 8 and 12 years after the first symptoms. Women with chronic pelvic pain report a lower quality of life. No studies, however, have been conducted to assess whether women with endometriosis-related pelvic pain are affected differently than those with pelvic pain from other or no identifiable causes.
This large-scale study is designed to gather prospective epidemiological data on the impact of and risk factors for endometriosis across countries worldwide. A study of this scale and scope has never been performed; it is anticipated that the study will provide novel insights into the effects of the condition and associated symptoms on women s lives across different countries, as well as explore differences in the effects of various potential risk factors.
This is an international study conducted at more than 20 sites worldwide and coordinated by Oxford University in the United Kingdom. At the National Institutes of Health, 250 premenopausal women between 18 and 45 years of age who are having their first diagnostic laparoscopy or laparoscopy for tubal sterilization will participate. None will have had a prior diagnosis of endometriosis through surgery. Women will be informed about the study when their laparoscopy is scheduled.
This large-scale study is designed to gather prospective epidemiological data on the impact of and risk-factors for endometriosis across countries world-wide. A study of this scale and scope has never been performed; it is anticipated to provide novel insights into the effects of the condition and associated symptoms on women s lives across different countries, as well as explore (differences in) the effects of various potential risk-factors.
Study Design: This is a clinic-based patient survey of prospectively recruited women undergoing a laparoscopy for symptoms suggestive of endometriosis or for tubal sterilization. Descriptive, as well as nested case-control studies will be conducted using information collected from patients in the registry to investigate the impact of endometriosis and associated symptoms, and test etiological hypotheses.
Primary Outcome: The primary purpose of this survey is to collect systematic, comprehensive epidemiological information on the impact of endometriosis among women world-wide, in terms of prevalence, diagnostic delay, quality of life, economic effect indicators, health care utilization, and risk-factors.
Secondary Outcomes: A secondary purpose of the register is to provide a frame-work for future follow-up studies of women diagnosed with endometriosis, allowing the investigation of indicators of effectiveness of different treatment options; long-term quality of life issues, as well as personal and economic (productivity) costs of endometriosis. The multi-center nature of the study should allow variability of endometriosis illness outcomes and associations to be assessed across participating countries.
Basic descriptive analyses will include prevalence estimates according to different age and demographic characteristics, across countries. The analyses of most outcomes will be conducted by comparing women with endometriosis (cases) to those without (controls), both of which will have been recruited through the same process. To avoid bias, cases will be matched to controls on characteristics such as age, country of residence and clinic attended. The analysis of the data will take into consideration this matching; in addition, adjustment for symptoms for which the laparoscopy was indicated (pelvic pain, infertility) will be included. Continuous variables and categorical variables will be analyzed with the appropriate statistical tests.
Duration of Patient Participation: Women are informed about the study at the consultation during which their laparoscopy is scheduled. If they accept to participate, they are asked to fill in an online questionnaire any time before their scheduled surgery. Unless they consent to being contacted sometime in the future for follow-up surveys, their active participation in the study ends. If they wish to participate in future surveys, they will be contacted at most every 1-2 years.
|Study Type ICMJE||Observational|
|Study Design ICMJE||Time Perspective: Prospective|
|Target Follow-Up Duration||Not Provided|
|Sampling Method||Not Provided|
|Study Population||Not Provided|
|Intervention ICMJE||Not Provided|
|Study Group/Cohort (s)||Not Provided|
|Publications *||Not Provided|
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
|Recruitment Status ICMJE||Completed|
|Completion Date||November 2012|
|Primary Completion Date||Not Provided|
|Eligibility Criteria ICMJE||
A patient who meets all of the following criteria is eligible for the study:
A patient who meets any of the following criteria is ineligible for the study:
|Ages||18 Years to 45 Years|
|Accepts Healthy Volunteers||Yes|
|Contacts ICMJE||Contact information is only displayed when the study is recruiting subjects|
|Listed Location Countries ICMJE||United States|
|Removed Location Countries|
|NCT Number ICMJE||NCT00849173|
|Other Study ID Numbers ICMJE||090085, 09-CH-0085|
|Has Data Monitoring Committee||Not Provided|
|Responsible Party||Not Provided|
|Study Sponsor ICMJE||Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)|
|Collaborators ICMJE||Not Provided|
|Information Provided By||National Institutes of Health Clinical Center (CC)|
|Verification Date||November 2012|
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP