Key Takeaways
- Endometriosis affects approximately 190 million women and girls globally, representing about 10% of the world's female population of reproductive age.
- In the United States, endometriosis is estimated to affect 11% of women aged 15-44, equating to roughly 6.5 million women.
- The prevalence of endometriosis in women undergoing laparoscopy for infertility is around 30-50%.
- 85-95% of women with endometriosis experience dysmenorrhea.
- Chronic pelvic pain affects 70-90% of endometriosis patients.
- Dyspareunia (painful intercourse) is reported by 50-60% of women with endometriosis.
- Laparoscopy confirms endometriosis in 75% of suspected symptomatic cases.
- Transvaginal ultrasound detects endometriomas with 90-95% sensitivity.
- MRI sensitivity for deep infiltrating endometriosis is 85-95%.
- Hormonal contraceptives provide pain relief in 70-80% initially.
- Laparoscopic excision reduces pain by 50-70% at 6 months.
- GnRH agonists achieve 80-90% symptom remission short-term.
- Endometriosis costs US patients $12,000 annually in out-of-pocket expenses.
- Women with endometriosis lose 10.8 hours/week to symptoms.
- 54% of patients report job loss or reduced hours due to disease.
Endometriosis widely impacts millions of women globally, often causing chronic pain and fertility challenges.
Diagnosis
- Laparoscopy confirms endometriosis in 75% of suspected symptomatic cases.
- Transvaginal ultrasound detects endometriomas with 90-95% sensitivity.
- MRI sensitivity for deep infiltrating endometriosis is 85-95%.
- CA-125 levels are elevated in 40-80% of advanced cases.
- Rectal endoscopic sonography has 98% accuracy for bowel involvement.
- Average diagnostic delay is 7-10 years from symptom onset.
- Only 46% of patients are diagnosed within 5 years of symptoms.
- Pelvic exam detects abnormalities in 50-60% of cases.
- Ultrasound detects deep nodules with 70-90% sensitivity using TVS.
- Histological confirmation required in 100% for definitive diagnosis.
- 20-30% of laparoscopies for pain yield incidental endometriosis.
- Blood tests like CA-125 have 20% sensitivity in minimal disease.
- Symptom-based questionnaires like EPQ have 85% specificity.
- 3D ultrasound improves detection of pouch of Douglas obliteration to 92%.
- Only 18% of GPs consider endometriosis in first visit for pain.
- Diffusion-weighted MRI enhances nodule detection to 95% accuracy.
- Urine biomarkers like VEGF show promise with 80% sensitivity in trials.
- ASRM staging correlates poorly with pain (r=0.1-0.2).
- 65% of patients see 5+ doctors before diagnosis.
- Bowel endometriosis diagnosed preop in 70% via TVUS/ MRI combo.
- Adolescent diagnosis via laparoscopy shows 70% stage I/II.
- CA-19-9 elevated in 50% with bowel involvement.
- Empirical treatment response predicts diagnosis in 60-70%.
Diagnosis Interpretation
Epidemiology
- Endometriosis affects approximately 190 million women and girls globally, representing about 10% of the world's female population of reproductive age.
- In the United States, endometriosis is estimated to affect 11% of women aged 15-44, equating to roughly 6.5 million women.
- The prevalence of endometriosis in women undergoing laparoscopy for infertility is around 30-50%.
- Endometriosis is found in 25-40% of infertile women and 70-80% of those with chronic pelvic pain.
- Among adolescents with chronic pelvic pain, up to 62% are diagnosed with endometriosis via laparoscopy.
- Black women have a 36% lower likelihood of receiving a timely endometriosis diagnosis compared to white women.
- The incidence of endometriosis has increased by 67% in the UK from 1995 to 2017.
- Endometriosis accounts for 25-50% of all infertility cases in women.
- In Australia, 1 in 10 women aged 14-49 have endometriosis, affecting over 737,000 women.
- The global economic burden of endometriosis is estimated at $69.4 billion annually in direct and indirect costs.
- Endometriosis is diagnosed in 5-15% of women undergoing tubal ligation.
- Familial risk increases the odds of endometriosis by 5-8 times if a first-degree relative is affected.
- In Europe, the prevalence among reproductive-age women is 5-10%.
- Endometriosis lesions are classified into superficial peritoneal (80-90% of cases), ovarian endometriomas (17-44%), and deep infiltrating (5-12%).
- The lifetime risk of endometriosis surgery in Sweden is 11% for women born 1960-1989.
- In China, endometriosis prevalence in pelvic laparoscopies is 15-20%.
- Endometriosis is more common in urban areas, with a 1.5-fold higher diagnosis rate than rural.
- Among women with endometriosis, 40-60% also have adenomyosis.
- The disease is diagnosed 6.7 years on average after symptom onset.
- Endometriosis affects 176 million women worldwide as per 2011 estimates.
- In Japan, deep endometriosis prevalence is 20-40% in surgical cases.
- Nulliparity increases endometriosis risk by 30-50%.
- The condition is found in 1-7% of asymptomatic women at autopsy or surgery.
- In the US, annual healthcare costs for endometriosis exceed $22 billion.
- Endometriosis prevalence in teenagers with dysmenorrhea is 45-75%.
- Global variation shows higher rates in developed countries (up to 15%).
Epidemiology Interpretation
Impact
- Endometriosis costs US patients $12,000 annually in out-of-pocket expenses.
- Women with endometriosis lose 10.8 hours/week to symptoms.
- 54% of patients report job loss or reduced hours due to disease.
- Absenteeism from work averages 11 hours/month.
- Quality of life scores (SF-36) are 50% lower than controls.
- 70% experience sexual dysfunction impacting relationships.
- Annual productivity loss per patient $15,160 in direct costs.
- 40% have anxiety disorders, 30% depression.
- Fertility treatments cost average $20,000-50,000 per patient.
- 25% of patients consider suicide due to pain.
- Global DALYs lost to endometriosis: 0.856 million annually.
- Relationship breakdown in 38% of cases.
- Opioid prescriptions 3-fold higher, addiction risk 2x.
- Education disruption in 50% of adolescents.
- Healthcare utilization 6x higher than average women.
- 60% report financial hardship from treatments.
- Pain catastrophizing scores 2x higher, worsening QoL.
- 80% have reduced exercise capacity due to fatigue.
- Ovarian reserve diminished, AMH 25% lower.
- Bowel obstruction risk 1-3% lifetime.
Impact Interpretation
Symptoms
- 85-95% of women with endometriosis experience dysmenorrhea.
- Chronic pelvic pain affects 70-90% of endometriosis patients.
- Dyspareunia (painful intercourse) is reported by 50-60% of women with endometriosis.
- Non-menstrual pelvic pain occurs in 30-50% of cases daily or weekly.
- Dyschezia (painful bowel movements) is present in 20-50% of patients.
- 30-50% of women with endometriosis experience bloating and gastrointestinal symptoms.
- Fatigue is reported by 75-90% of endometriosis patients.
- Infertility affects 30-50% of women with the disease.
- Menorrhagia (heavy periods) occurs in 40-60% of cases.
- Back pain or radiating leg pain is noted in 30% of patients.
- Nausea and vomiting during menses affect 20-40%.
- Urinary symptoms like frequency or pain occur in 10-20%.
- Headaches and migraines are 2-3 times more common in endometriosis patients.
- Depression and anxiety prevalence is 40-60% higher than general population.
- Adnexal tenderness on exam in 80% of cases.
- Uterosacral ligament nodularity in 50% of deep endometriosis.
- Shoulder tip pain from diaphragmatic endometriosis in 1-5%.
- Pain worsens over time in 80% of untreated patients.
- Cyclic pain patterns in 70% correlating with menstrual cycle.
- 90% of women report pain impacting daily activities.
- Sleep disturbances in 50-70% due to pain.
- 25-40% experience pain with ovulation.
- Rectovaginal pain in 10-20% with deep infiltrating disease.
- Average pain score on VAS is 7.2/10 for pelvic pain in patients.
Symptoms Interpretation
Treatment
- Hormonal contraceptives provide pain relief in 70-80% initially.
- Laparoscopic excision reduces pain by 50-70% at 6 months.
- GnRH agonists achieve 80-90% symptom remission short-term.
- Progestins like dienogest reduce lesions by 30-50%.
- Hysterectomy with oophorectomy cures 80-90% of cases.
- NSAIDs relieve pain in 50-60% of mild cases.
- Elagolix (Orilissa) reduces dysmenorrhea by 75% in phase 3 trials.
- Recurrence rate post-laparoscopy is 20-40% at 5 years.
- IUD with levonorgestrel reduces bleeding by 90%.
- Aromatase inhibitors adjunctive therapy improves pain in 60% refractory cases.
- Combined oral contraceptives suppress symptoms in 70-80%.
- Deep infiltrating disease requires multidisciplinary surgery in 90% for optimal outcomes.
- Physiotherapy pelvic floor therapy benefits 60-70% for pain.
- Danazol effective but 50% side effect dropout rate.
- IVF success rates 40-50% per cycle in endometriotic infertility.
- Add-back therapy with GnRH reduces bone loss to <2%.
- Laparotomy needed in 10-20% for severe adhesions.
- Acupuncture shows 50% pain reduction in meta-analyses.
- 40% of patients require repeat surgery within 5 years.
- Dietary interventions like low FODMAP reduce GI symptoms by 60%.
Treatment Interpretation
Sources & References
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