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BACKGROUND: Over the past decades, the rising incidence rates of endometrial cancer have made it a significant public health concern for women worldwide. Treatment strategies for endometrial cancer vary based on several factors such as stage, histology, the patient's overall health, and preferences. However, limited amount of research on treatment patterns and potential correlations with sociodemographic characteristics among Hispanics is available. This study analyzes the treatment patterns for patients diagnosed with endometrial cancer in Puerto Rico. METHODS: A secondary database analysis was performed on endometrial cancer cases reported to the Puerto Rico Central Cancer Registry-Health Insurance Linkage Database from 2009 to 2015 (n = 2,488). The study population's sociodemographic and clinical characteristics were described, along with an overview of the therapy options provided to patients receiving care on the island. Logistic regression models were used to evaluate the association of sociodemographic/clinical characteristics with treatment patterns stratified by risk of recurrence. RESULTS: In our cohort, most patients were insured through Medicaid and had a median age of 60 years. Almost 90% of patients received surgery as the first course of treatment. Surgery alone was the most common treatment for low-risk patients (80.2%). High-risk patients were more likely to receive surgery with radiotherapy and chemotherapy (24.4%). Patients with Medicare insurance were five times (HR: 4.84; 95% CI: 2.45-9.58; p < 0.001) more likely to receive surgery when compared with patients insured with Medicaid. In contrast, those with private insurance were twice as likely to receive surgery (HR: 2.38; 95% CI: 1.40-4.04; p = 0.001) when compared to those with Medicaid. CONCLUSION: These findings provide insight into the treatment patterns for endometrial cancer in Puerto Rico and highlight the importance of considering factors such as disease risk when making treatment decisions. Addressing these gaps in treatment patterns can contribute to effective management of endometrial cancer.

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BACKGROUND: Multiple myeloma (MM) survival has increased during the last decades due to the introduction of new therapies. We investigated the intersectionality among age, sex, and race/ethnicity to better understand the pattern of MM incidence, mortality, and survival. METHODS: Puerto Rico (PR) Central Cancer Registry and the United States of America (US) Surveillance, Epidemiology, and End Results (SEER) Program databases were used. We analyzed MM incidence and mortality trends from 2001 to 2019 using Joinpoint regression models to calculate annual percent change (APC). Age-standardized rate ratios (SRR) for incidence and mortality were used to compare PR with US SEER racial/ethnic groups during 2015-2019. Five-year survival analyses were also performed stratified by age and sex. RESULTS: Regardless of age and race/ethnicity, males had higher MM incidence and mortality rates than females. PR had a higher increase in incidence rates of MM than other ethnic groups, regardless of sex and age (PR APC = 4.3 among males <65, 3.1 among males ≥65, 6.3 among females <65, and 2.6 among females ≥65 years old). No significant change in mortality APCs (p > 0.05) was observed in PR when stratified by age or sex while other groups showed a decrease. Among males < 65 years, PR had significantly higher incidence rates than non-Hispanic Whites (NHW), and US Hispanics (USH). However, among both males and females ≥ 65 years, PR had significantly lower MM mortality rates than NHW, non-Hispanic Blacks (NHB), USH, and US Overall. In terms of survival, PR showed the lowest 5-year overall survival among males < 65 years (54.6%, 95% CI: 47.2-61.5) and males ≥ 65 years (34.5%, 95% CI: 29.2-39.9) but not among females. CONCLUSION: The incidence of MM in PR increased significantly over the study period, particularly among younger women. Despite the introduction of new therapies, mortality rates in PR have remained stable while other ethnic groups show significant decreases among all intersections of sex and age.

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BACKGROUND: Leukemia is a cancer of the early-forming cells. Over the past decade, leukemia racial/ethnic disparities have been documented in the United States of America (USA). Although the Puerto Rican population in the USA represents the second-largest Hispanic population in the nation, most of the existing studies do not include Puerto Rico. We compared the incidence and mortality rates for leukemia and its subtypes in Puerto Rico and four racial/ethnic groups in the USA. METHODS: We used data from the Puerto Rico Central Cancer Registry and the Surveillance, Epidemiology, and End Results Program (2015-2019). The racial/ethnic groups studied were non-Hispanic whites (NHW), non-Hispanic blacks (NHB), Hispanics (USH), and Asian/Pacific Islanders (NHAPI) living in the USA and the Puerto Rico population. We calculated the incidence and mortality rates. The relative risk of developing or dying due to leukemia was also calculated. RESULTS: Compared with Puerto Rico, NHW [standardized incidence rate (SIR) = 1.47; 95%CI = 1.40-1.53; standardized mortality rates (SMR) = 1.55; 95%CI = 1.45-1.65)] and NHB (SIR = 1.09; 95%CI = 1.04-1.15; SMR = 1.27; 95%CI = 1.19-1.35) had higher incidence and mortality rates; but lower than the NHAPI (SIR = 0.78; 95%CI = 0.74-0.82; SMR = 0.83; 95%CI = 0.77-0.89); and similar to USH. However, we found differences among leukemia subtypes. For example, NHAPI and USH had lower risk of developing chronic leukemias than Puerto Rico. We found a lower risk to develop acute lymphocytic leukemia in NHB than in Puerto Rico. CONCLUSIONS: Our study provides a better understanding of leukemia's racial/ethnic disparities and fills a knowledge gap by examining the incidence and mortality rates in Puerto Rico. Future studies are needed to better understand the factors influencing the differences found in the incidence and mortality of leukemia among different racial/ethnic groups.

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BACKGROUND: The United States Preventive Services Task Force (USPSTF) recommends breast, cervical, and colorectal cancer screening among eligible adults, but information on screening use in the US territories is limited. METHODS: To estimate the proportion of adults up-to-date with breast, cervical, and colorectal cancer screening based on USPSTF recommendations, we analyzed Behavioral Risk Factor Surveillance System data from 2016, 2018, and 2020 for the 50 US states and DC (US) and US territories of Guam and Puerto Rico and from 2016 for the US Virgin Islands. Age-standardized weighted proportions for up-to-date cancer screening were examined overall and by select characteristics for each jurisdiction. RESULTS: Overall, 67.2% (95% CI: 60.6-73.3) of women aged 50-74 years in the US Virgin Islands, 74.8% (70.9-78.3) in Guam, 83.4% (81.7-84.9) in Puerto Rico, and 78.3% (77.9-78.6) in the US were up-to-date with breast cancer screening. For cervical cancer screening, 71.1% (67.6-74.3) of women aged 21-65 years in Guam, 81.3% (74.6-86.5) in the US Virgin Islands, 83.0% (81.7-84.3) in Puerto Rico, and 84.5% (84.3-84.8) in the US were up-to-date. For colorectal cancer screening, 45.2% (40.0-50.5) of adults aged 50-75 years in the US Virgin Islands, 47.3% (43.6-51.0) in Guam, 61.2% (59.5-62.8) in Puerto Rico, and 69.0% (68.7-69.3) in the US were up-to-date. Adults without health care coverage reported low test use for all three cancers in all jurisdictions. In most jurisdictions, test use was lower among adults with less than a high school degree and an annual household income of < $25,000. CONCLUSION: Cancer screening test use varied between the US territories, highlighting the importance of understanding and addressing territory-specific barriers. Test use was lower among groups without health care coverage and with lower income and education levels, suggesting the need for targeted evidence-based interventions.

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Identifying factors associated with colorectal cancer screening utilization is important to guide colorectal cancer prevention and control programs. We evaluated trends and factors associated with previous-year fecal occult blood test (FOBT) use among Hispanic adults living in Puerto Rico and the U.S. mainland. Using data from the Behavioral Risk Factor Surveillance System (2012-2020), trends in FOBT use were analyzed using joinpoint regression to estimate annual percentage change (APC). Logistic regression stratified by location identified factors associated with FOBT use. FOBT was more common among Hispanic adults ages 50 to 75 years living in Puerto Rico than in the U.S. mainland [Puerto Rico: 20.5%[2012] to 45.6%[2020], APC = 11.4%; U.S. mainland: 9.9%[2012] to 16.7%[2020], APC = 5.9%]. Factors inversely associated with FOBT use were similar in Puerto Rico and the U.S. mainland, including lack of health insurance, not having a personal doctor, having a checkup >12 months ago, and not being able to see a doctor due to cost, as were factors associated with higher FOBT use, including older age, retirement, or having two or more chronic diseases. Among Hispanics living in the U.S. mainland, lack of exercise and less education were inversely associated with FOBT. Factors related to poor access to healthcare were associated with lower use of FOBT among Hispanics. Efforts to improve colorectal cancer screening in Hispanics are necessary to address health disparities across the colorectal cancer care continuum. PREVENTION RELEVANCE: Colorectal cancer screening reduces cancer incidence and mortality. All screening modalities, including less invasive FOBT tests, are underutilized, especially in non-White and low-income populations. Evaluation of trends and factors associated with the increase in the use of colorectal cancer screening can inform programs to address the lack of screening among racial minorities.

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BACKGROUND: The use of markers has stimulated the development of more appropriate targeted therapies for chronic lymphocytic leukemia (CLL) and acute myeloid leukemia (AML). We assessed the use and prevalence of biological and genetic markers of CLL and AML in the homogeneous Hispanic population of Puerto Rico. METHODS: We used the Puerto Rico CLL/AML Population-Based Registry, which combines information from linked databases. Logistic regression models were used to examine factors associated with biological and genetic testing. RESULTS: A total of 926 patients 18 years or older diagnosed with CLL (n = 518) and AML (n = 408) during 2011-2015 were included in this analysis. Cytogenetic testing (FISH) was reported for 441 (85.1%) of the CLL patients; of those, 24.0% had the presence of trisomy 12, 9.5% carried deletion 11q, 50.3% carried deletion 13q, and 6.3% carried deletion 17p. Regarding AML, patients with cytogenetics and molecular tests were considered to determine the risk category (254 patients), of which 39.8% showed poor or adverse risk. Older age and having more comorbidities among patients with CLL were associated with a lower likelihood of receiving a FISH test. CONCLUSIONS: Although prognostic genetic testing is required for treatment decisions, the amount of testing in this Hispanic cohort is far from ideal. Furthermore, some tests were not homogeneously distributed in the population, which requires further exploration and monitoring. This study contributes to the field by informing the medical community about the use and prevalence of biological and genetic markers of CLL and AML. Similarly, it has the potential to improve the management of CLL and AML through benchmarking.

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Background: Periodontitis, one of the most common bacterial infections characterized by chronic inflammation, is also known to be a risk factor for chronic conditions, including cardiovascular disease and cancer. This inflammation is driven by an altered microbiota with an increase in pathogenic bacteria. We evaluated the association between oral microbiota and periodontitis severity in high-risk Hispanics. Method: This cross-sectional study recruited 134 sexually active participants aged 21 to 49 years old from STI Clinics in Puerto Rico. A periodontal examination, saliva collection, and an interviewer-administered questionnaire were performed. Periodontal severity was categorized as: having no disease, mild, and moderate/severe and BOP and tooth loos was noted. Saliva samples were collected for genomic DNA extraction, downstream 16S rDNA amplification sequencing, and bioinformatics analyses. Results: The structure, composition, and diversity of bacterial communities differed significantly according to periodontal severity. The richness and overall diversity also differed between participants without periodontitis and participants with some level of periodontal disease. A higher abundance of Prevotella, Veillonella, or Treponema was attributed to periodontal disease and Aggregatibacter to severe bleeding on probing, while Neisseria was found in higher abundance in healthy participants, decreasing its levels with drinking, smoking, and oral sex practices. Conclusions: Our findings indicate that dysbiosis occurs as periodontal disease progresses, and both alcohol consumption and smoking habits pose risk factors for oral dysbiosis. These results are of public health and clinical impact, as several bacteria identified could serve in the future as biomarkers for periodontitis and oral cancer risk.

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BACKGROUND: Febrile Neutropenia (FN) is a common and serious condition related to cancer chemotherapy. Human recombinant Granulocyte-Colony Stimulating Factor (G-CSF) prevents and attenuates the severity and duration of FN. We evaluated the use and predictors of G-CSF adherence among women with breast cancer with a high risk of FN in Puerto Rico. METHODS: This retrospective cohort study used the Puerto Rico Central Cancer Registry-Health Insurance Linkage Database. Women with invasive breast cancer diagnosed during 2009-2015 who received selected chemotherapy regimens (n = 816) were included. The risk of FN was categorized as high and low risk based on the chemotherapy regimens according to the National Comprehensive Cancer Network guidelines and literature. Adherence was defined as the use or no use of G-CSF at the start of the first chemotherapy cycle among women with breast cancer based on the risk of developing FN. We used a multivariate logistic model to identify factors associated with G-CSF use in women classified at high risk for FN. RESULTS: Adherence to G-CSF clinical practice guidelines was low (38.2%) among women with a high risk of FN. Women at high risk of FN with Medicaid (aOR: 0.14; CI 95%: 0.08, 0.24) and Medicare/Medicaid (aOR: 0.33; CI 95%: 0.15, 0.73) were less likely to receive G-CSF than women with private health insurance. Women with regional stage (aOR: 1.82; CI 95%: 1.15, 2.88) were more likely to receive G-CSF than women with localized cancers. CONCLUSIONS: Adherence to clinical practice guidelines was poor among women with a high risk of FN. Furthermore, disparities in the adherence to G-CSF use in terms of health insurance, health region, and cancer stage granted the opportunity to implement strategies to follow the recommended guidelines for using G-CSF as part of cancer treatment.

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BACKGROUND: Acute myeloid leukemia (AML) is the most common type of leukemia in adults. There are no previous studies evaluating AML treatment patterns in Puerto Rico. We describe the first-line therapy patterns and survival of patients diagnosed with AML in Puerto Rico using the Puerto Rico Central Cancer Registry Health Insurance Linkage Database (2011-2015). METHODS: We describe patient characteristics according to intensive, non-intensive, and non-treatment status. We used Cox proportional hazard models to evaluate the factors associated with the risk of death stratified by intensive and non-intensive therapy. For this study, 385 patients with AML were included. RESULTS: The mean age was 67 years old and 50.1% were female. Nearly half of AML patients (46.8%) received intensive treatment, 23.6% received non-intensive treatment, and 26.2% did not receive treatment. The overall 3-year survival rate was 17.9%. Among those who received intensive therapy, the risk of death among females was lower than males (hazard ratio [HR]: 0.64, 95% confidence interval [CI]: 0.44-0.93). Patients 60 years or older who received intensive treatment had a higher risk of death than younger patients (HR: 1.67, 95% CI: 1.09-2.55). Patients with poor/adverse risk receiving intensive (HR: 3.43, 95% CI: 1.76-6.69) or non-intensive (HR: 4.32, 95% CI: 1.66-11.28) treatment had a higher risk of death than patients with a favorable risk category. CONCLUSION: Our findings are the first step to monitor the quality of care of patients with AML in Puerto Rico, particularly related to the administration of appropriate induction therapies, which is one of the most important predictors of AML survival.

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