Black-White differences in uterine cancer symptomatology and stage at diagnosis.

OBJECTIVE: To examine whether uterine cancer symptoms differ between Black and White patients and how this may influence their stage at diagnosis. METHODS: Using the Surveillance, Epidemiology and End Results-Medicare database, we identified 2328 Black and 21,774 White patients with uterine cancer in 2008-2017. Their symptoms in the 18 months before diagnosis were categorized as postmenopausal bleeding (PMB) alone, PMB together with other symptoms (e.g., abdominal/pelvic pain, bloating), non-PMB symptoms alone, or no symptoms. Stage at diagnosis was dichotomized as advanced (i.e., regional/distant) versus localized. The association between race and stage was analyzed using regression models incrementally adjusting for symptoms and other patient characteristics. RESULTS: A larger proportion of Black than White patients experienced PMB together with other symptoms (63.1% versus 58.0%) or experienced non-PMB symptoms alone (13.1% versus 9.4%) (p < 0.001). Black patients had a higher risk of advanced-stage diagnosis than White patients (45.0% versus 30.3%, unadjusted RR = 1.52, 95% CI: 1.44-1.59). Adjusting for Black-White differences in symptoms attenuated the RR to 1.46 (95% CI: 1.39-1.53). Compared to PMB symptoms alone, having additional non-PMB symptoms (RR = 1.21, 95% CI: 1.15-1.26) and having non-PMB symptoms alone (RR = 1.99, 95% CI: 1.88-2.10) were associated with increased risk of advanced-stage diagnosis. Further adjusting for histology and other patient characteristics reduced Black-White disparity in advanced-stage diagnosis to 1.08 (95% CI: 1.03-1.14) but symptoms remained significantly associated with stage at diagnosis. CONCLUSIONS: Having non-PMB symptoms was associated with more advanced stage at diagnosis. Non-PMB symptoms were more common among Black than White patients, which might hinder symptom recognition/evaluation.

Time trend of global uterine cancer burden: an age-period-cohort analysis from 1990 to 2019 and predictions in a 25-year period.

BACKGROUND: Uterine cancer remains a serious medical problem worldwide. This study aimed to explore the global time trends of uterine cancer burden using the age-period-cohort model and forecast incidence to 2044. METHODS: Data were downloaded from the Global Burden of Disease 2019. The age-period-cohort model was used to estimate age, period and birth cohort effects. We also predict uterine cancer incidence to 2044. RESULTS: Globally, there were 435,041 incident cases (95% UI: 245,710 to 272,470) and 91,640 deaths of uterine cancer (95% UI: 39,910 to 44,140) in 2019. During the past 30 years, the age-standardized incidence and death rates increased by 15.3% and decreased by 21.6%, respectively. Between 1990 and 2019, the high-sociodemographic index region had the highest overall annual percentage changes. The age effect showed the uterine cancer incidence rate first increased and then decreased with age. The period and cohort relative rate ratio showed upward trends during the study period. Incident cases of uterine cancer may increase to more than six hundred thousand in 2044. CONCLUSION: Uterine cancer causes a high disease burden in high-income regions and the global incidence may continue to increase in the future. Improving awareness of risk factors and reducing the proportion of the obese population are necessary to reduce future burden.

Landmark Series on Disparities: Uterine Cancer and Strategies for Mitigation.

Longstanding racial disparities exist in uterine cancer. There is a growing body of literature documenting differences in the prevalence, diagnosis, treatment, and tumor characteristics of uterine cancer in Black women compared with White women that significantly contribute to the outcome disparity seen between the groups. This article seeks to provide an overview of racial disparities present in uterine cancer, with attention on Black women in the USA, as well as offer a review on the multifactorial etiology of the disparities described.

Completeness and selection bias of a Belgian multidisciplinary, registration-based study on the EFFectiveness and quality of Endometrial Cancer Treatment (EFFECT).

BACKGROUND: With the aim of obtaining more uniformity and quality in the treatment of corpus uteri cancer in Belgium, the EFFECT project has prospectively collected detailed information on the real-world clinical care offered to 4063 Belgian women with primary corpus uteri cancer. However, as data was collected on a voluntary basis, data may be incomplete and biased. Therefore, this study aimed to assess the completeness and potential selection bias of the EFFECT database. METHODS: Five databases were deterministically coupled by use of the patient's national social security number. Participation bias was assessed by identifying characteristics associated with hospital participation in EFFECT, if any. Registration bias was assessed by identifying patient, tumor and treatment characteristics associated with patient registration by participating hospitals, if any. Uni- and multivariable logistic regression were applied. RESULTS: EFFECT covers 56% of all Belgian women diagnosed with primary corpus uteri cancer between 2012 and 2016. These women were registered by 54% of hospitals, which submitted a median of 86% of their patients. Participation of hospitals was found to be biased: low-volume and Walloon-region centers were less likely to participate. Registration of patients by participating hospitals was found to be biased: patients with a less favorable risk profile, with missing data for several clinical-pathological risk factors, that did not undergo curative surgery, and were not discussed in a multidisciplinary tumor board were less likely to be registered. CONCLUSIONS: Due to its voluntary nature, the EFFECT database suffers from a selection bias, both in terms of the hospitals choosing to participate and the patients being included by participating institutions. This study, therefore, highlights the importance of assessing the selection bias that may be present in any study that voluntarily collects clinical data not otherwise routinely collected. Nevertheless, the EFFECT database covers detailed information on the real-world clinical care offered to 56% of all Belgian women diagnosed with corpus uteri cancer between 2012 and 2016, and may therefore act as a powerful tool for measuring and improving the quality of corpus uteri cancer care in Belgium.

Spatiotemporal trends in burden of uterine cancer and its attribution to body mass index in 204 countries and territories from 1990 to 2019.

BACKGROUND: Uterine cancer is one of the most common female cancers worldwide, with huge heterogeneity in morbidity and mortality. Although a high body-mass index (BMI) has been linked to uterine cancer, systematic reports about the influence of high BMI and its temporal trends are scarce. METHODS: The annual morbidity, mortality, and disability-adjusted life years (DALYs) of uterine cancer in 204 countries or territories were retrieved from the GBD 2019 study. To reflect trends in disease burden, we also calculated the estimated annual percentage change (EAPC) based on the age-standardized rates of uterine cancer from 1990 to 2019. RESULTS: The global incident cases of uterine cancer increased 2.3 times from 187,190 in 1990 to 435,040 in 2019. Although the age-standardized incidence rate (ASIR) of uterine cancer increased worldwide from 8.67/100,000 in 1990 to 9.99/100,000 in 2019, the age-standardized death rate (ASDR) and DALY rate decreased during the same period. High socio-demographic index (SDI) countries tended to have a higher ASIR than developing regions, and their increasing trend in ASIR was also more pronounced. The disease was rare before 40 years old, but its risk rose sharply among women aged 50-70. A high BMI was linked to more than one-third of deaths from uterine cancer in 2019. CONCLUSIONS: The incidence in developed areas was significantly higher than in developing areas and also increased much more rapidly. Elderly females, especially those with a high BMI, have a higher risk of uterine cancer. Therefore, more health resources may be needed to curb the rising burden in specific populations.

Surveillance for gestational trophoblastic neoplasia following molar pregnancy: a cost-effectiveness analysis.

BACKGROUND: Historically, published guidelines for care after molar pregnancy recommended monitoring human chorionic gonadotropin levels for the development of gestational trophoblastic neoplasia until normal and then for 6 months after the first normal human chorionic gonadotropin. However, there are little data underlying such recommendations, and recent evidence has demonstrated that gestational trophoblastic neoplasia diagnosis after human chorionic gonadotropin normalization is rare. OBJECTIVE: We sought to estimate the cost-effectiveness of alternative strategies for surveillance for gestational trophoblastic neoplasia after human chorionic gonadotropin normalization after complete and partial molar pregnancy. STUDY DESIGN: A Markov-based cost-effectiveness model, using monthly cycles and terminating after 36 months/cycles, was constructed to compare alternative strategies for asymptomatic human chorionic gonadotropin surveillance after the first normal (none; monthly testing for 1, 3, 6, and 12 months; or every 3-month testing for 3, 6, and 12 months) for both complete and partial molar pregnancy. The risk of reduced surveillance was modeled by increasing the probability of high-risk disease at diagnosis. Probabilities, costs, and utilities were estimated from peer-reviewed literature, with all cost data applicable to the United States and adjusted to 2020 US dollars. The primary outcome was cost per quality-adjusted life year ($/quality-adjusted life year) with a $100,000/quality-adjusted life year willingness-to-pay threshold. RESULTS: Under base-case assumptions, we found no further surveillance after the first normal human chorionic gonadotropin to be the dominant strategy from both the healthcare system and societal perspectives, for both complete and partial molar pregnancy. After complete mole, this strategy had the lowest average cost (healthcare system, $144 vs maximum $283; societal, $152 vs maximum $443) and highest effectiveness (2.711 vs minimum 2.682 quality-adjusted life years). This strategy led to a slightly higher rate of death from gestational trophoblastic neoplasia (0.013% vs minimum 0.009%), although with high costs per gestational trophoblastic neoplasia death avoided (range, $214,000 to >$4 million). Societal perspective costs of lost wages had a greater impact on frequent surveillance costs than rare gestational trophoblastic neoplasia treatment costs, and no further surveillance was more favorable from this perspective in otherwise identical analyses. No further surveillance remained dominant or preferred with incremental cost-effectiveness ratio of <$100,000 in all analyses for partial mole, and most sensitivity analyses for complete mole. Under the assumption of no disutility from surveillance, surveillance strategies were more effective (by quality-adjusted life year) than no further surveillance, and a single human chorionic gonadotropin test at 3 months was found to be cost-effective after complete mole with incremental cost-effectiveness ratio of $53,261 from the healthcare perspective, but not from the societal perspective (incremental cost-effectiveness ratio, $288,783). CONCLUSION: Largely owing to the rare incidence of gestational trophoblastic neoplasia after human chorionic gonadotropin normalization after molar pregnancy, prolonged surveillance is not cost-effective under most assumptions. It would be reasonable to reduce, and potentially eliminate, current recommendations for surveillance after human chorionic gonadotropin normalization after molar pregnancy, particularly among partial moles. With any reduction in surveillance, patients should be counseled on symptoms of gestational trophoblastic neoplasia and established in routine gynecologic care.

Racial disparities in high-risk uterine cancer histologic subtypes: A United States Cancer Statistics study.

OBJECTIVE: Black women with uterine cancer on average have worse survival outcomes compared to White women, in part due to higher rates of aggressive, non-endometrioid subtypes. However, analyses of incidence trends by specific high-risk subtypes are lacking, including those with hysterectomy and active pregnancy correction. The objective of our study was to evaluate racial disparities in age-adjusted incidence of non-endometrioid uterine cancer in 720,984 patients. METHODS: Data were obtained from United States Cancer Statistics using SEER*Stat. We used the Behavioral Risk Factor Surveillance System to correct for hysterectomy and active pregnancy. Age-adjusted, corrected incidence of uterine cancer from 2001 to 2016 and annual percent change (APC) were calculated using Joinpoint regression. RESULTS: Of 720,984 patients, 560,131 (77.7%) were White, 72,328 (10.0%) were Black, 56,239 (7.8%) were Hispanic, and 22,963 (3.2%) were Asian/Pacific Islander. Age-adjusted incidence of uterine cancer increased from 40.8 (per 100,000) in 2001 to 42.9 in 2016 (APC = 0.5, p < 0.001). Black women had the highest overall incidence at 49.5 (APC = 2.3, p < 0.001). The incidence of non-endometrioid subtypes was higher in Black compared to White women, with the most pronounced differences seen in serous carcinoma (9.1 vs. 3.0), carcinosarcoma (6.1 vs. 1.8), and leiomyosarcoma (1.3 vs. 0.6). In particular, Black women aged 70-74 with serous carcinoma had the highest incidence (61.3) and the highest APC (7.3, p < 0.001). CONCLUSIONS: Black women have a two to four-fold higher incidence of high-risk uterine cancer subtypes, particularly serous carcinoma, carcinosarcoma, and leiomyosarcoma, compared to White women after correcting for hysterectomy and active pregnancy.

Assessment of reported uterine lesions diagnosed histologically after ovariohysterectomy in 1,928 pet rabbits (Oryctolagus cuniculus).

OBJECTIVE: To assess variations in age, breed, and clinical signs in rabbits with neoplastic or nonneoplastic uterine lesions and to investigate potential relationships between endometrial adenocarcinoma and age at ovariohysterectomy or breed in rabbits. ANIMALS: 1,928 rabbits that underwent ovariohysterectomy for treatment or prevention of possible uterine disease. PROCEDURES: With an online questionnaire distributed to 441 veterinary hospital members of the Japanese Society of Exotic Pet Medicine, data were retrospectively collected regarding age, breed, and findings on physical and histologic examinations for pet rabbits that underwent ovariohysterectomy between January 1, 2009, and April 30, 2018. Rabbits were grouped by reported age, breed, clinical signs, and uterine lesions, and results were assessed across groups. Logistic regression analysis was used to identify potential relationships between endometrial adenocarcinoma and breed or age at ovariohysterectomy in rabbits. RESULTS: The questionnaire response rate was 9.8% (43/441), with data reported for 1,928 rabbits (mixed breed, 600 [31.1%]; Netherland Dwarf, 520 [27.0%]; Holland Lop, 286 [14.8%]; or various other breeds, 522 [27.1%]). The most commonly reported neoplastic and nonneoplastic lesions were endometrial adenocarcinoma (1,035/1,928 [53.7%]) and endometrial hyperplasia (842 [43.7%]), respectively, and the most commonly reported clinical sign was hematuria or serosanguineous vaginal discharge (1,020/1,928 [52.9%]). As age at ovariohysterectomy increased, so did the odds (OR, 1.826; 95% CI, 1.640 to 2.033) of uterine adenocarcinoma. CONCLUSIONS AND CLINICAL RELEVANCE: Results supported ovariohysterectomy in rabbits before 2 years of age as a key preventative measure to mitigate uterine disease, particularly endometrial adenocarcinoma.

The role of histology on endometrial cancer survival disparities in diverse Florida.

BACKGROUND: Endometrial cancer (EC) mortality is particularly high among non-Hispanic Blacks and is twice that of non-Hispanic Whites. However, comparisons of EC survival outcomes by race/ethnicity are often confounded by histology and grade. Here, we analyze EC survival disparities in multiracial Florida with a focus on EC types (1 and 2) and subtypes, defined according to histology and grade. METHODS: All 27,809 cases of EC diagnosed during 2005-2016 were obtained from the Florida Cancer Registry. Age-standardized, 5-year cause-specific survival by race/ethnicity and histological type were calculated. Fine and Gray competing risk regression was used to estimate sub-distribution hazard ratios (sHRs) for associations between risk of death due to EC and potential predictive factors such as histology/grade, age, stage at diagnosis, and insurance. RESULTS: Type 2 EC accounted for only 38.7% of all incident EC-cases but 74.6% of all EC-deaths. Blacks were disproportionately affected by type 2 EC (57.6%) compared to Whites, Hispanics, and Asians (35.6%, 37.7%, and 43.0%, respectively). Age-adjusted 5-year survival for types 1 and 2 were 85.3% and 51.6%, respectively; however, there was wide variation within type 2 subtypes, ranging from 60.2% for mixed cell EC to as low as 30.1% for carcinosarcoma. In the multivariable model, Blacks with type 2 EC had a 23% higher risk of death due to EC (sHR: 1.23, 95%CI: 1.12-1.36) compared to Whites. CONCLUSIONS: Population-based analyses should consider the histological heterogeneity of EC because the less common type 2 EC drives racial/ethnic survival disparities in EC. Black women have a higher proportion of more aggressive histological types and an overall higher risk of death due to EC than Whites. To the extent that some of these histological types may be considered different diseases and require specific treatment approaches, further research on etiology and prognosis for detailed type 2 EC subtypes is warranted.

The management of hydatidiform mole using prophylactic chemotherapy and hysterectomy for high-risk patients decreased the incidence of gestational trophoblastic neoplasia in Vietnam: a retrospective observational study.

The management of hydatidiform mole (HM) and the incidence of post-molar gestational trophoblastic neoplasia (GTN) in Vietnam has not been reported to date. This study aimed to study the incidence of HM and post-molar GTN and identify factors associated with post-molar GTN at a tertiary hospital in Vietnam. Five hundred and eighty-four patients who were treated for HM at Tu Du Hospital between January and December 2010 were included in this study. The mean age and gestational age at the first evacuation were 28.8 years old and 11.0 weeks, respectively. After the initial evacuation and pathological examination, 87 patients who were older than 40 or did not wish to have children underwent a hysterectomy, while the others underwent second curettage. All 472 patients who had human chorionic gonadotropin (hCG) ≥ 100,000 IU/L before treatment received one cycle of methotrexate with folinic acid as prophylactic chemotherapy. The incidence of HM was 11.1 per 1,000 deliveries; 47 patients (8.0%) developed post-molar GTN. Gestational week, hCG level at one week after the first evacuation, and pathological remnants were significantly associated with the development of post-molar GTN. The results of this study suggest that prophylactic chemotherapy and hysterectomy may be useful for high-risk HM patients to reduce post-molar GTN in settings in which the risk of post-molar GTN and loss to follow-up after HM are greater and hCG measurements and appropriate GTN treatments are unavailable. However, future studies on the long-term outcomes and side effects of prophylactic therapies on HM are required.

Incidence of Cervical, Ovarian and Uterine Cancer in Eritrea: Data from the National Health Laboratory, 2011-2017.

The main objective of this study was to investigate the incidence of cervical (C53), ovarian (C56) and uterine (C54-55) cancers in pathology department of the National Health Laboratory of Eritrea between 2011 and 2017. All tumour positive cases from cervix, ovary and uterus diagnosed between 2011 and 2017 were analyzed, based on the data from the pathology department available in National Health Laboratory. We summarized the results by using crude incidence rates (CIR) and age-standardized rates (ASRs). Annual percentage changes (APCs) for each site were calculated and compared according to ten-year age difference and year of occurrence. Between 2011 and 2017, 883 cases of cervical, ovarian and uterine tumours were reported in Eritrea. Malignant and benign tumours/entities comprising 269 and 614, respectively. The ASR for malignant tumours was highest in women aged between 60-69 (6.84 per 100 000). Total ASR for specific gynecological cancers (cervical, ovarian, uterine) was 19.32 per 100 000 females. The ASR for cervical cancer over the study period was 8.7 per 100 000. The ASR for ovarian and uterine cancers were 6.75 per 100 000 and 5.14 per 100 000, respectively. Over the study period, the incidence of these cancers was largely stable with no significant change in incidence rates recorded. In sum, the ASR for cervical cancer is relatively low compared to the rates reported in the region. Further, the ASR for ovarian and uterine cancers is nearly similar to the rates observed in this region. The study also provides ample evidence on the need for research targeted at uncovering the true burden of gynecological cancers in Eritrea. Potential solutions will require the establishment of high-quality population-based cancer registries (PBCRs) and long-term commitment to improvements in research platforms, training, screening, diagnosis, and the overall management of cancers in the country.

Investigating the Nexus between Gynaecologic Cancer and Human Development Index.

This study aimed to describe the current incidence and mortality rates of gynecologic cancer and their association with socio- economic development. The data for the age-standardized incidence rate (ASRI) and age-standardized mortality rate (ASRM) were acquired from the GLOBOCAN-2012 database. Human Development Index (HDI) data were obtained from the 2015- Human Development Report. The correlation between HDI and Mortality to Incidence Ratio (MIR) was assessed by Pearson- correlation. The effect of national-HDI on MIR was analyzed by linear regression analysis. The ASRI, ASRM, and MIR of cervix cancer were higher in the less developed regions (LDRs) than in more developed regions (MDRs). However, for corpus uteri cancer, the ASRI was 3.6 times and the ASRM was 1.5-times higher in the MDRs than in the LDRs. Strong inverse associations between MIR and HDI were reported from cervix (adjusted R2 = 0.825, ß = - 0.908, p < 0.001), corpus uteri (adjusted R2 = 0.554, ß = - 0.746, p < 0.001) and ovarian cancer (adjusted R2 = 0.579, ß = - 0.763, p < 0.001). The higher MIR of gynecologic cancer in LDRs demand for sustainable investment in health systems and balanced cancer control plans in the region.

Epidemiology and management of uterine fibroids.

Uterine leiomyomas are one of the most common and yet understudied diseases in women. These tumors, commonly known as fibroids, affect women mainly during their reproductive years and are diagnosed in up to 70% of white women and more than 80% of women of African ancestry during their lifetime. This disease has a profound impact on health care delivery and costs worldwide. Though most women with fibroids are asymptomatic, approximately 30% of them will present with severe symptoms which can include abnormal uterine bleeding, anemia, pelvic pain and pressure, back pain, urinary frequency, constipation, or infertility, and will require intervention. Furthermore, fibroids have been associated with poor obstetrical outcomes. The current options for symptomatic fibroid treatment include expectant, medical, and surgical management, and interventional radiology procedures. This article reviews the recent progress and available management strategies for uterine fibroids and highlights areas where further research is needed to find new therapeutic targets and better personalize treatments.

Uterine Corpus Malignancies in Appalachia Kentucky: Incidence, Survival, and Related Health Disparities.

OBJECTIVES: Uterine cancer is the nation's most common gynecologic malignancy, but it is understudied in the geographically and socioeconomically diverse state of Kentucky (KY). Our aim was to assess the frequency, distribution, and survival of uterine corpus malignancies in KY, and specifically the differences between Appalachia (AP) and non-Appalachia (NAP) KY. METHODS: This population-based cohort study used Surveillance, Epidemiology, and End Results data and the Kentucky Cancer Registry to study uterine corpus malignancy between January 1, 2000 and December 31, 2014. The analysis looked at the incidence between diagnoses in AP and NAP. The evaluation criteria included tumor histology (type I, type II, sarcoma, and mixed uterine malignancy), age, race, smoking status, stage at diagnosis, insurance status, and county of residence at diagnosis. RESULTS: The overall age-adjusted incidence rate and survival are similar for US and KY populations; however, histologic types and distribution differ. Compared with the United States, the incidence of corpus cancers in KY is higher for type I (P = 0.03), but lower for type II (P = 0.003), sarcoma (P = 0.006), and mixed (P < 0.001). AP KY has a higher incidence of type I (P < 0.0001) and mixed malignancy (P = 0.04), younger age at diagnosis (P < 0.0001), larger non-Hispanic white population (P < 0.0001), fewer smokers (P = 0.002), and more uninsured and Medicaid recipients (P < 0.0001) compared with NAP KY. The hazard ratio for death is similar in AP and NAP KY (0.896; 95% confidence interval 0.795-1.009). CONCLUSIONS: Type I and mixed uterine corpus cancers have a higher age-adjusted incidence and a younger age at diagnosis in AP compared with NAP KY.

Uterine Cancer Rates Rising, Racial Disparities Found.

According to this study.

Assessment of the optimal age for a preventive ultrasonographic screening of the uterine health in bitches.

Studies about prevalence of uterine pathologies in bitches are scarce. Although correlation between age and uterine disorders was documented, the most suitable age for a preventive sonographic screening has not been proposed yet. Present study aimed to estimate the eligible age for an ultrasonographic screening of uterine abnormalities in dogs. Data regarding ultrasound examination and clinical records of non-pregnant intact females were retrospectively analysed. The age of each bitch was expressed as age ratio (actual/maximum age expected for the respective breed). The cut-off age ratio was determined by a ROC curve for overall uterine abnormalities. Frequencies of different abnormalities below and over the cut-off derived from the ROC curve were calculated and statistically analysed by chi-Square and OR. Prevalence of three categories of ultrasonographic findings was as follows: cystic endometrial hyperplasia (CEH) 18%; uterine collections (UC) 10.5%; masses (M) 1.3%. By the cut-off age ratio (0.325), derived by ROC curve (AUC = 0.91; SP 84.23%; SE 79.2%; PPV 83.4%; NPV 80%), 228 cases were divided into two subgroups: bitches over (exposed group: n.83) and below cut-off (control group: n.145). All abnormalities resulted more frequent in exposed group: OR was 24.96 (p < 0.0001: 71.1% over vs. 9% below cut-off) for overall abnormalities; 13.68 (p < 0.0001: 40.9% vs. 4.8%) for CEH; 6.13 (p < 0.002: 21.7% vs. 4.1%) for UC; 12.65 (p = 0.09: 3.6% vs. 0%) for M. Cystic endometrial hyperplasia represents the most common finding in adult bitches, followed by UC. A preventive sonographic screening for uterine abnormalities should start from 33% of expected longevity to preventively select animals requiring further evaluations.

Hysterectomy-Corrected Uterine Corpus Cancer Incidence Trends and Differences in Relative Survival Reveal Racial Disparities and Rising Rates of Nonendometrioid Cancers.

PURPOSE: Uterine corpus cancer incidence rates have been projected to increase, a prediction often attributed to the obesity epidemic. However, correct estimation of these rates requires accounting for hysterectomy prevalence, which varies by race, ethnicity, and region. Here, we evaluated recent trends in hysterectomy-corrected rates by race and ethnicity and histologic subtype and estimated differences in relative survival by race and ethnicity, subtype, and stage. METHODS: We estimated hysterectomy prevalence from the Behavioral Risk Factor Surveillance System. Hysterectomy-corrected age-standardized uterine corpus cancer incidence rates from 2000 to 2015 were calculated from the SEER 18 registries. Incidence rates and trends were estimated separately by race and ethnicity, region, and histologic subtype. Five-year relative survival rates were estimated by race and ethnicity, histologic subtype, and stage. RESULTS: Hysterectomy-corrected incidence rates of uterine corpus cancer were similar among non-Hispanic whites and blacks and lower among Hispanics and Asians/Pacific Islanders. Endometrioid carcinoma rates were highest in non-Hispanic whites, whereas nonendometrioid carcinoma and sarcoma rates were highest in non-Hispanic blacks. Hysterectomy-corrected uterine corpus cancer incidence increased among non-Hispanic whites from 2003 to 2015 and among non-Hispanic blacks, Hispanics, and Asians/Pacific Islanders from 2000 to 2015. Overall incidence rates among non-Hispanic blacks surpassed those of non-Hispanic whites in 2007. Endometrioid carcinoma rates rose among non-Hispanic blacks, Hispanics, and Asians/Pacific Islanders but were stable among non-Hispanic whites; however, nonendometrioid carcinoma rates rose significantly among all women. Non-Hispanic blacks had the lowest survival rates, irrespective of stage at diagnosis or histologic subtype. CONCLUSION: Among all women, rates of nonendometrioid subtypes have been rising rapidly. Our analysis shows profound racial differences and disparities indicated by higher rates of nonendometrioid subtypes and poorer survival among non-Hispanic black women.

No. 371-Morcellation During Gynaecologic Surgery: Its Uses, Complications, and Risks of Unsuspected Malignancy.

OBJECTIVE: This guideline provides guidance to gynaecologists regarding the use of tissue morcellation in gynaecologic surgery. OUTCOMES: Morcellation may be used in gynaecologic surgery to allow removal of large uterine specimens, thus providing women with a minimally invasive surgical option. Adverse oncologic outcomes of tissue morcellation should be mitigated through improved patient selection, preoperative investigations, and novel techniques that minimize tissue dispersion. EVIDENCE: Published literature was retrieved through searches of PubMed and Medline in the spring of 2014 using appropriate controlled vocabulary (leiomyosarcoma, uterine neoplasm, uterine myomectomy, hysterectomy) and key words (leiomyoma, endometrial cancer, uterine sarcoma, leiomyosarcoma, and morcellation). Results were restricted to systematic reviews, randomized control trials/controlled clinical trials, and observational studies. There were no date limits, but results were limited to English or French language materials. Searches were updated on a regular basis and incorporated in the guideline to July 2017. Grey (unpublished) literature was identified through searching the websites of health technology assessment and health technology assessment-related agencies, clinical practice guideline collections, clinical trial registries, and national and international medical specialty societies. VALUES: The quality of evidence in this document was rated using the criteria described in the report of the Canadian Task Force on Preventive Health Care. BENEFITS, HARMS, AND COSTS: Gynaecologists offer women minimally invasive surgery, and this may involve tissue morcellation and the use of a power morcellator for specimen retrieval. Women should be counselled that in the case of unexpected uterine (sarcoma, endometrial), cervical, and/or tubo-ovarian cancer, the use of a morcellator is associated with increased risk of tumour dissemination. Tissue morcellation should be performed only after complete investigation, appropriate patient selection, and informed consent and by surgeons with appropriate training in the safe practices of tissue morcellation. SUMMARY STATEMENTS: RECOMMENDATIONS.

Uterine Cancer Incidence and Mortality - United States, 1999-2016.

Uterine cancer is one of the few cancers with increasing incidence and mortality in the United States, reflecting, in part, increases in the prevalence of overweight and obesity since the 1980s (1). It is the fourth most common cancer diagnosed and the seventh most common cause of cancer death among U.S. women (1). To assess recent trends in uterine cancer incidence and mortality by race and ethnicity, CDC analyzed incidence data from CDC's National Program of Cancer Registries (NPCR) and the National Cancer Institute's Surveillance, Epidemiology, and End Results (SEER) program and mortality data from the National Vital Statistics System (2). Most recent data available are through 2015 for incidence and through 2016 for mortality. Uterine cancer incidence rates increased 0.7% per year during 1999-2015, and death rates increased 1.1% per year during 1999-2016, with smaller increases observed among non-Hispanic white (white) women than among women in other racial/ethnic groups. In 2015, a total of 53,911 new uterine cancer cases, corresponding to 27 cases per 100,000 women, were reported in the United States, and 10,733 uterine cancer deaths (five deaths per 100,000 women) were reported in 2016. Uterine cancer incidence was higher among non-Hispanic black (black) and white women (27 cases per 100,000) than among other racial/ethnic groups (19-23 per 100,000). Uterine cancer deaths among black women (nine per 100,000) were higher than those among other racial/ethnic groups (four to five per 100,000). Public health efforts to help women achieve and maintain a healthy weight and obtain sufficient physical activity can reduce the risk for developing cancer of the endometrium (the lining of the uterus), the most common uterine cancer. Abnormal vaginal bleeding, including bleeding between periods or after sex or any unexpected bleeding after menopause, is an important symptom of uterine cancer (3). Through programs such as CDC's Inside Knowledge* campaign, promoting awareness among women and health care providers of the need for timely evaluation of abnormal vaginal bleeding can increase the chance that uterine cancer is detected early and treated appropriately.

Burden, Prevalence, and Treatment of Uterine Fibroids: A Survey of U.S. Women.

BACKGROUND: Most women will experience uterine fibroids by the age of 50, yet few data exist describing the overall patient experience with fibroids. The objective of this population-based survey was to characterize symptom burden, patient awareness, and treatment decision-making for fibroids, including a comparison among women of varying backgrounds. MATERIALS AND METHODS: Women (≥18 years) were recruited via email from GfK KnowledgePanel®, a representative panel of US households, or identified with opt-in consumer panels. The Uterine Fibroid Symptom and Health-Related Quality of Life (UFS-QOL) questionnaire and Aberdeen Menorrhagia Severity Scale (AMSS) were included. RESULTS: Eligible women were grouped into three cohorts: "at-risk" (symptoms suggestive of fibroids without clinical diagnosis, n = 300), "diagnosed" (n = 871), and fibroid-related "hysterectomy" (n = 272). Cohort and intracohort race/ethnicity and income analyses revealed differences in symptom burden, awareness/perception, and treatment history. Based on UFS-QOL scores, at-risk women reported significantly greater symptom severity and decreased health-related QOL versus diagnosed women; Hispanic women reported greater symptom severity versus white and black women. At-risk women also reported heavy menstrual bleeding and significant impact on work productivity. Among diagnosed women, 71% used pharmacologic therapy for symptom relief, and 30% underwent surgical or procedural treatment. Initial discussions with healthcare providers significantly impacted treatment outcomes; the hysterectomy cohort was most likely to first discuss hysterectomy. CONCLUSIONS: Women with fibroids or symptoms suggestive of fibroids experience significant distress that reduces QOL, particularly racial minorities and women in lower income brackets. Survey results suggest that many women are likely undiagnosed, underscoring the need for improved awareness and education.