Impact of Race and Socioeconomics Disparities on Survival in Young-Onset Colorectal Adenocarcinoma-A SEER Registry Analysis

Differences in the epidemiology and survival of patients with colorectal cancer between China and the United States: a large cross-sectional study

Studying the epidemiological and management characteristics of colorectal cancer (CRC) between China and the US has important implications. The present cross-sectional study included patients from SEER and Southwest China Colorectal (SCC) databases. Incidence, treatment and survival information were compared between two countries. 86859 patients in the SEER database and 5838 patients in the SCC database were included. The estimated incidence of CRC in the US was greater than that in China from 2006 to 2019. The most common tumor sites of CRC patients in China were the RSC (66.5%), RCC (20.2%) and LCC (13.3%), while those in the US were the RCC (44.4%), RSC (29.8%) and LCC (25.8%). Chinese CRC patients were more likely to be male (58.9% vs 52.4%, p < 0.001), have a greater stage II CRC rate (49.8% vs 27.8%, p < 0.001), younger age at diagnosis (median 64 vs 66 years, p < 0.001). Radical surgery rates were lower in Chinese RCC (92.3% vs 93.9%, p < 0.001) and LCC (88.9% vs 92.0%, p < 0.001) patients. The adjuvant therapy rates were lower in Chinese CRC patients. The 5-year overall survival rates were 71.8% and 78.2% for Chinese and US CRC patients, respectively (p < 0.001). China is undergoing an increasing incidence of CRC. The treatment and mortality of CRC differ in China and US populations. China had a lower adjuvant therapy rate and a lower 5-year OS rate compared with the US.

Vulnerability in Colorectal Cancer: Adjusted Gross Income and Geography as Factors in Determining Overall Survival in Colorectal Cancer: A Single-Center Study Across a Broad Income Inequality in an American Context

Introduction: Regional differences in socioeconomic status (SES) are well known, and we believe that the use of geocoding (zip code) can facilitate the introduction of targeted interventions for underserved populations. This is a single-center, retrospective analysis of data extracted from the cancer registry at the Capital Health Cancer Center in Pennington, N. The Capital Health Cancer Center in central New Jersey primarily serves two counties, catering to a diverse patient population from a wide range of socioeconomic backgrounds. Methods: We abstracted 1269 consecutive cases of colorectal cancer (CRC) diagnosed and treated between 2000 and 2019 from the Cancer Registry of the Capital Health Cancer Center (CHCC). Using the definition of SES based on previously published work, and zip codes (geocoding), we created four SES levels. We stratified our subjects according to their stage at diagnosis, age at diagnosis, race, and ethnicity. The primary outcome variable was overall survival (OS). Results: There was a statistically significant difference in OS based on SES, with the highest overall survival (OS) in the high-SES group (47 months) and the shortest OS in the low and mid-low-SES groups (40.4 and 30 months, respectively). Subjects living in high-SES areas were predominantly white (88.2%) and diagnosed at a later age (mean of 68.9 years of age) compared to individuals who lived in a low-SES area, who were predominantly non-white (72.6%) and diagnosed somewhat earlier in life (65.1 years of age). White people were diagnosed later in life (70.9 years of age) compared to non-white populations, including Black (66.5), Asian (61.7), and Hispanic (58.5) (p = 0.001) populations, but this did not lead to a significant difference in OS (p = 0.56). Stage at diagnosis was a significant predictor of OS, but was unrelated to SES (p = 0.066). A Cox proportional hazard ratio (HR) model showed that the risk of dying from colorectal cancer decreases with a higher socioeconomic status (SES). Those from mid-high-SES backgrounds had a 19% lower risk (HR 0.81), and those from high-SES areas had a 45% lower risk (HR 0.55) compared to individuals from low-SES areas. Conclusions: The vulnerability of patients with CRC in central New Jersey is a complex issue, influenced by many different variables. Our results indicate that SES is the most critical factor affecting OS after being diagnosed with CRC.

Racial and Ethnic Variation in Survival in Early-Onset Colorectal Cancer

Importance

Rates of early-onset (before 50 years of age) colorectal cancer (EOCRC) are increasing, with notable differences across racial and ethnic groups. Limited data are available on EOCRC-related mortality differences when disaggregating racial and ethnic groups.

Objective

To investigate racial and ethnic differences in EOCRC mortality, including disaggregation of Asian American populations separately, including Native Hawaiian or Other Pacific Islander populations and specific Asian American groups, and to quantify the contribution of clinical and sociodemographic factors accounting for these differences.

Design, Setting, and Participants

This population-based cohort study included California Cancer Registry data for individuals aged 18 to 49 years with EOCRC between January 1, 2000, to December 31, 2019. Median follow-up was 4.2 (IQR, 1.6-10.0) years. The data analysis was conducted between July 1, 2021, and September 30, 2024.

Exposure

Race and ethnicity defined as Asian American (and 7 disaggregated subgroups), Hispanic, Native Hawaiian or Other Pacific Islander, non-Hispanic American Indian or Alaska Native, non-Hispanic Black, and non-Hispanic White.

Main Outcomes and Measures

Cox proportional hazards regression models were used to measure association between race and ethnicity and CRC mortality risk, yielding adjusted hazard ratios (AHRs) and 95% CIs. Associations of sociodemographic, health system, and clinical factors with differences in mortality by racial and ethnic minority group were assessed using sequential modeling.

Results

There were 22 834 individuals diagnosed with EOCRC between 2000 and 2019 (12 215 [53.5%] male; median age, 44 [IQR, 39-47] years). Racial and ethnic identity included 3544 (15.5%) Asian American, 6889 (30.2%) Hispanic, 135 (0.6%) Native Hawaiian or Other Pacific Islander, 125 (0.5%) non-Hispanic American Indian or Alaska Native, 1668 (7.3%) non-Hispanic Black, and 10 473 (45.9%) non-Hispanic White individuals. Compared with non-Hispanic White individuals, higher EOCRC mortality was found for Native Hawaiian or Other Pacific Islander (AHR, 1.34; 95% CI, 1.01-1.76) and non-Hispanic Black (AHR, 1.18; 95% CI, 1.07-1.29) individuals. Disaggregation of Asian American ethnic groups revealed notable heterogeneity, but no single group had increased EOCRC mortality risk after full adjustment for covariates. For Hispanic individuals, there was higher EOCRC mortality (AHR, 1.15 [95% CI, 1.08-1.22]) with the base model (adjustment for age, sex, and tumor characteristics), but the association disappeared once neighborhood socioeconomic status was added to the base model (AHR, 1.00 [95% CI, 0.94-1.06]). Similarly, there was higher EOCRC mortality among Southeast Asian individuals with the base model (AHR, 1.17 [95% CI, 1.03-1.34], but that association disappeared with the addition of insurance status to the model (AHR, 1.10 [95% CI, 0.96-1.25]).

Conclusions and Relevance

In this cohort study, racial and ethnic disparities in EOCRC mortality were evident, with the highest burden among Native Hawaiian or Other Pacific Islander and non-Hispanic Black individuals. These results provide evidence of the role of social determinants of health in explaining these differences.

Construction and validation of a nomogram for predicting overall survival of patients with stage III/IV early-onset colorectal cancer

Purpose

This study aimed to identify prognostic factors and develop a nomogram for predicting overall survival (OS) in stage III/IV early-onset colorectal cancer (EO-CRC).

Methods

Stage III/IV EO-CRC patients were identified from the Surveillance, Epidemiology, and End Results (SEER) database between 2010 and 2015. The datasets were randomly divided (2:1) into training and validation sets. A nomogram predicting OS was developed based on the prognostic factors identified by Cox regression analysis in the training cohort. Moreover, the predictive performance of the nomogram was assessed using the receiver operating characteristic (ROC) curves, calibration plots, and decision curve analysis (DCA). Subsequently, the internal validation was performed using the validation cohort. Finally, a risk stratification system was established based on the constructed nomogram.

Results

Of the 10,387 patients diagnosed with stage III/IV EO-CRC between 2010 and 2015 in the SEER database, 8,130 patients were included. In the training cohort (n=3,071), sex, marital status, race/ethnicity, primary site, histologic subtypes, grade, T stage, and N stage were identified as independent prognostic variables for OS. The 1-, 3-, and 5-year area under the curve (AUC) values of the nomogram were robust in both the training (0.751, 0.739, and 0.723) and validation cohorts (0.748, 0.733, and 0.720). ROC, calibration plots, and DCA indicated good predictive performance of the nomogram in both the training and validation sets. Furthermore, patients were categorized into low-, middle-, and high-risk groups based on the nomogram risk score. Kaplan-Meier curve showed significant survival differences between the three groups.

Conclusion

We developed a prognostic nomogram and risk stratification system for stage III/IV EO-CRC, which may facilitate clinical decision-making and individual prognosis prediction.

Health literacy status among community in the protected area: A protocol for systematic review and meta-analysis

BACKGROUND

Adequate health literacy is necessary for individuals as it enables them to readily acquire information, process it, and apply it to health-related decisions. Various factors including geographical area will determine the disparity in health literacy status. Communities living in protected areas have limited health literacy and health status owing to a lack of access to infrastructure and medical facilities. Existing studies have discussed health literacy among various populations disproportionately affected by certain diseases. However, research remains underdeveloped, and the causal factors are largely untested. This research aims to better understand how population living conditions especially those who are living in protected areas are affected and exposed to limited health literacy.

METHOD

This study will comprehensively review full-text papers published between 2013 and 2023. We will search 3 databases, PubMed, SCOPUS, and Web of Science, using the keyword search strategy to find articles related to the issue. Preferred Reporting Items for Systematic Reviews and Meta-Analyses will be used to guide the selection of relevant studies. The results will then be assessed using the standard Cochrane Quality assessment method. The outcome is addressed in light of a narrative synthesis that utilizes a theme category and focuses on each component's main conclusions.

RESULT

This protocol describes the planned scope and methodology for the systematic review and meta-analysis that will provide current evidence on; The status of health literacy among the community in protected areas and; The effect of Protected Areas on health literacy according to their types and characteristics.

CONCLUSION

Meta-analysis of low-to-high health literacy status will benefit the development of policy recommendations for protected areas.

Prediction models for overall and cancer-specific survival in patients with metastatic early-onset colorectal cancer: a population-based study

PURPOSE

Metastatic early-onset colorectal cancer (EO-CRC) is on the rise, yet there is a dearth of predictive models for this disease. Therefore, it is crucial to develop a nomogram to aid in the early detection and management of metastatic colorectal cancer in young patients.

METHODS

We retrieved data from the SEER database on patients with metastatic colorectal cancer aged 50 or younger between 2010 and 2017. The data were randomly allocated in a 7:3 ratio to training and validation cohorts, and univariate and multivariate Cox regression analyses were used to identify independent prognostic factors for overall survival (OS) and cancer-specific survival (CSS) at 1, 3, and 5 years. The nomograms were developed based on these factors, and their discriminatory and calibration capabilities were validated. Using the nomogram risk scores, patients were stratified into low-risk and high-risk groups.

RESULTS

The study included 2470 patients with metastatic EO-CRC. Univariate and multivariate Cox regression analysis identified 12 independent risk factors that were included in the nomogram. The training cohort had a consistency index (C-index) of 0.71, while the validation cohort had a C-index of 0.70, demonstrating good predictive accuracy. Calibration plots showed a high level of consistency between the observed and predicted values, with overlapping plots along the diagonal. The decision curve analysis (DCA) revealed that the nomogram had a high clinical application value.

CONCLUSIONS

The novel nomograms were created to predict the prognosis of patients with metastatic EO-CRC, which can aid clinicians in developing more effective treatment strategies and contribute to more accurate prognostic assessments.

Thermal ablation versus radiotherapy for inoperable stage III non-small cell lung cancer: a propensity score matching analysis

OBJECTIVE

To compare the survival benefits of thermal ablation (TA) and radiotherapy in inoperable patients with stage III non-small cell lung cancer (NSCLC).

METHOD

A retrospective analysis was conducted using the data from the Surveillance, Epidemiology, and End Results (SEER) program. Propensity score matching (PSM) was conducted to balance potential baseline confounding factors. Survival analyses were conducted using Kaplan-Meier and Cox regression methods.

RESULTS

The present study included 33,393 inoperable patients with stage III NSCLC, including 106 patients treated with TA and 33,287 patients treated with radiotherapy. No statistical difference in overall survival (OS) (p = .065) or cancer-specific survival (CSS) (p = .996) was found between the patients treated with TA and those treated with radiotherapy. Using 1:3 matching, a matched cohort of 420 patients (105 patients treated with TA, 315 patients treated with radiotherapy) was identified. The differences in OS (p = .177) and CSS (p = .605) were still not significant between the radiotherapy and TA groups after PSM. According to subgroup analyses, TA showed comparable survival benefits in almost all subgroups compared to radiotherapy.

CONCLUSION

For inoperable stage III NSCLC, the survival benefit of TA was comparable to radiotherapy. TA may be a potential therapeutic modality for inoperable stage III NSCLC.

Disparities in Recommendations for Colorectal Cancer Screening Among Average-Risk Individuals: An Ecobiosocial Approach

Regardless of the high global burden of colorectal cancer (CRC), the uptake of CRC screening varies across countries. This systematic review aimed to provide a picture of the disparities in recommendations for CRC screening in average-risk individuals using an ecobiosocial approach. It was reported according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. The literature search was conducted through Scopus, Web of Science, PubMed, and EBSCOHost. Full-text guidelines which were published between 2011 and 2021, along with guidelines which provided recommendations on CRC screening in average-risk individuals, were included in the review. However, guidelines focusing only on a single screening modality were excluded. Fourteen guidelines fulfilling the eligibility criteria were retained for the final review and analysis. Quality assessment of each guideline was performed using the AGREE II instrument. Disparities in guidelines identified in this review were classified into ecological (screening modalities and strategies), biological (recommended age, gender and ethnicities), and social (smoking history, socioeconomic status, and behavior) factors. In general, unstandardized practices in CRC screening for average-risk individuals are likely attributable to the inconsistent and non-specific recommendations in the literature. This review calls on stakeholders and policymakers to review the existing colorectal cancer screening practices and pursue standardization.

Early-Onset Colorectal Cancer Survival Differences and Potential Geographic Determinants Among Men and Women in Utah

By 2030, early-onset colorectal cancer (EOCRC) is expected to become the leading cancer-related cause of death for people age 20 to 49. To improve understanding of this phenomenon, we analyzed the geographic determinants of EOCRC in Utah by examining county-level incidence and mortality. We linked data from the Utah Population Database to the Utah Cancer Registry to identify residents (age 18-49) diagnosed with EOCRC between 2000 and 2020, and we used spatial empirical Bayes smoothing to determine county-level hotspots. We identified 1,867 EOCRC diagnoses (52.7% in male patients, 69.2% in non-Hispanic White patients). Ten counties (34%) were classified as hotspots, with high EOCRC incidence or mortality. Hotspot status was unrelated to incidence rates, but non-Hispanic ethnic-minority men (incidence rate ratio, 1.49; 95% CI, 1.15-1.91), Hispanic White men and women (incidence rate ratio, 2.24; 95% CI, 2.00-2.51), and Hispanic ethnic-minority men and women (incidence rate ratio, 4.59; 95% CI, 3.50-5.91) were more likely to be diagnosed with EOCRC. After adjustment for income and obesity, adults living in hotspots had a 31% higher hazard for death (HR, 1.31; 95% CI, 1.02-1.69). Survival was poorest for adults with a late-stage diagnosis living in hotspots (chi square (1) = 4.0; p = .045). Adults who were married or who had a life partner had a lower hazard for death than single adults (HR, 0.73; 95% CI, 0.58-0.92). The risk for EOCRC is elevated in 34% of Utah counties, warranting future research and interventions aimed at increasing screening and survival in the population age 18 to 49.

Improving Comprehensive Cancer Control State Plans for Colorectal Cancer Screening in the Four Corners Region of the United States

Colorectal cancer (CRC) disparities continue to persist in the four corners region (states of New Mexico, Arizona, Utah, and Colorado) of the United States. The Comprehensive Cancer Control (CCC) state plans provide a policy and practice snapshot on how a state identifies and addresses its cancer burden. This study critically examines the four state plans to identify gaps and opportunities for cancer prevention and control. Using a conventional content analysis approach, we reviewed the CCC plans for CRC screening-related information, culminating in a conceptual framework that highlights three themes. First, states reported their cancer burden using national data from American Cancer Society, Centers for Disease Control and Prevention, or the NCI's Surveillance, Epidemiology, and End Results. Although these data informed specific goals and objectives, not all plans reported state-level data on CRC differences by specific social determinants of health and other characteristics. Second, it was not clear whether the interventions chosen to address state plan objectives were evidence-based and whether or not clearly described criteria were used for the selection of the interventions. Third, very limited information was provided in terms of state-specific contextual challenges and practical implementation of interventions. Study findings highlight opportunities to improve state-level cancer prevention and control efforts: first, by promoting the selection and adaptation of contextually relevant evidence-based interventions for this unique region; and second, through multidirectional engagement with communities, researchers, and policy and practice stakeholders. Such synergies in research and policies are vital for a coordinated and integrated approach to cancer prevention and control.

Midlife brain metastases in the United States: Is male at risk?

Background

Population‐based estimates of the impact of gender throughout the whole course of brain metastases (BMs) at the time of diagnosis of systemic malignancies are insufficient. We aimed to discover the influence of gender on the presence of BMs in newly diagnosed malignancies and the survival of those patients on a population‐based level.

Methods

Midlife patients (40 years ≤ age ≤60 years) with newly diagnosed malignancies and BMs at the time of diagnosis were abstracted from the Surveillance, Epidemiology, and End Results (SEER) database of the National Cancer Institute. Clinical variables adjusted patient data. The LASSO regression was performed to exclude the possibility of collinearity. Univariable and multivariable logistic regression analyses were applied to find independent predictors for the presence of BMs, while univariable and multivariable Cox proportional hazard regression analyses were used to determine prognosticators of survival. K‐M curves were used to perform the survival analysis.

Result

276,327 population‐based samples met inclusion criteria between 2014 and 2016, and 5747 (2.08%) patients were diagnosed with BMs at the time of diagnosis of systematic malignancies. Among all midlife patients with cancer, 44.02% (121,634) were male, while 51.68% (2970) were male among patients with BMs at the time of diagnosis. The most frequent tumor type was breast cancer (23.11%), and lung cancer had the highest incidence proportion of BMs among the entire cohort (19.34%). The multivariable logistic regression model suggested that female (vs. male, odds ratio [OR] 1.07, 95% CI: 1.01–1.14, p < 0.001) was associated with a higher risk of the presence of BMs at the time of diagnosis. Moreover, in the multivariable Cox model for all‐cause mortality in individuals with BMs at diagnosis, female (vs. male, hazard ratio [HR], 0.86, 95% CI, 0.80–0.92, p < 0.001) was shown to have a lower risk of decreased all‐cause mortality.

Conclusion

The middle‐aged females were at increased risk of developing BMs, while the middle‐aged males with BMs were at higher risk of having poorer survival.