Sociocultural Factors, Access to Healthcare, and Lifestyle: Multifactorial Indicators in Association with Colorectal Cancer Risk

The association between neighborhood socioeconomic status and the risk of incidence and mortality of colorectal cancer: A systematic review and meta-analysis of 1,678,582 participants

OBJECTIVES

We conducted a systematic review and meta-analysis to evaluate the association between neighborhood socioeconomic status (n-SES) and the risk of incidence and mortality in colorectal cancer (CRC).

SETTING

A comprehensive literature search was performed using PubMed/MEDLINE, ISI Web of Science and Scopus without any limitation until October 11, 2023. Inclusion criteria consisted of observational studies in adult subjects (≥18 years) which provided data on the association between n-SES and CRC-related incidence and mortality. Relative risk (RR) and 95 % confidence interval (CI) were pooled by employing a random-effects model. We employed validated methods to assess study quality and publication bias, utilizing the Newcastle-Ottawa Scale for quality evaluation, subgroup analysis to find possible sources of heterogeneity, Egger's regression asymmetry and Begg's rank correlation tests for bias detection and sensitivity analysis.

RESULTS

Finally, 24 studies (21 cohorts and 3 cross-sectional studies) from seven different countries with 1678,582 participants were included. The analysis suggested that a significant association between lower n-SES and an increased incidence of CRC (RR=1.11; 95 % CI: 1.08, 1.14; I2=64.4 %; p<0.001; n=46). The analysis also indicated a significant association between lower n-SES and an increased risk of mortality of CRC (RR=1.21; 95 % CI: 1.16, 1.26; I2=76.4 %; p<0.001; n=23). Furthermore, subgroup analysis revealed that there was a significant association between lower n-SES and an increased risk of incidence of CRC in colon location (RR=1.06; 95 % CI: 1.02, 1.10; I2=0.0 %; p=0.001; n=8), but not rectal location. In addition, subgroup analysis for covariates adjustment suggested that body mass index, smoking, physical activity, alcohol intake, or sex adjustment may influence the relationship between n-SES and the risk of incidence and mortality in CRC.

CONCLUSION

Lower n-SES was found to be a contributing factor to increased incidence and mortality rates associated with CRC, highlighting the substantial negative impacts of lower n-SES on cancer susceptibility and health outcomes.

Understanding racial disparities in health care expenditures for cervical cancer

BACKGROUND

Cervical cancer demonstrates a notable efficacy in treatment, evidenced by a 92% 5-year survival rate among cases diagnosed at a localized stage. In 2020, the estimated annual national expenditure for cervical cancer care amounted to $2.3 billion in the United States. Limited real-world data are available for racial disparities in health care expenditures for cervical cancer.

OBJECTIVE

To evaluate racial disparities associated with annual health care expenditures among patients diagnosed with cervical cancer in the United States.

METHODS

A retrospective observational cohort study of annual health care expenditures in patients with cervical cancer diagnosed during 2014-2019 was performed using the Medical Expenditure Panel Survey data. In addition to the descriptive weighted analysis, an unadjusted analysis of the annual health care expenditure was conducted. An adjusted linear regression model with log transformation of the outcome variable was used to evaluate the total annual health care expenditure as well as expenditures by category across the racial groups.

RESULTS

Overall, 826 patients with cervical cancer were identified from the Medical Expenditure Panel Survey during 2014-2019. The majority were classified as White patients (81.2%) and in the age group of 45-64 years (44.65%). On average, the total annual health care expenditure was $11,537 (95% CI = $9,887-$13,186) among the White cohort, $10,659 (95% CI = $6,704-$14,614) among the African American cohort, and $8,726 (95% CI = $6,113-$11,340) among the Hispanic cohort. After adjusting for covariates, the average total annual health care expenditure for the Hispanic cohort was 35% of the total health care expenditure of the White cohort (P < 0.001) and 46% of the African American cohort's health care expenditure (P = 0.02). Specifically, adjusted costs of office-based and outpatient visits for the Hispanic cohort were 47% (P = 0.009) and 57% (P = 0.005) lower than for the White cohort, respectively. The total annual home health care expenditure for the African American cohort was 49% lower than White patients (P = 0.03), and the Hispanic cohort's total expenditure, excluding prescription medicines, was 57% lower than African American patients (P = 0.02).

CONCLUSIONS

This study provides valuable information regarding the health care disparities that need to be addressed among certain minority races. Reducing the disparities in health care spending across racial groups should be included as a crucial element in tackling well-established health care inequities.

Colorectal cancer screening uptake and adherence by modality at a large tertiary care center in the United States: a retrospective analysis

OBJECTIVE

Real-world data is crucial to inform existing opportunistic colorectal cancer (CRC) prevention programs. This study aimed to assess CRC screening adherence and utilization of various screening modalities within a Primary Care network over a three-year period (2017-2019).

METHODS

A retrospective review of individuals aged 50-75 years at average CRC risk, with at least one clinic visit in the previous 24 months. The primary outcome, CRC screening adherence (overall and by modality) was examined among the entire eligible population and newly adherent individuals each calendar year. The final sample included 107,366 patients and 218,878 records.

RESULTS

Overall CRC screening adherence increased from 71% in 2017 to 78% in 2019. For "up-to-date" individuals, colonoscopy was the predominant modality (accounting for approximately 74%, versus 4% of adherence for non-invasive options). However, modality utilization trends changed over time in these individuals: mt-sDNA increased 10.2-fold, followed by FIT (1.6-fold) and colonoscopy (1.1-fold). Among newly adherent individuals, the proportion screened by colonoscopy and FOBT decreased over time (89% to 80% and 2.4% to 1.2%, respectively), while uptake of FIT and mt-sDNA increased (7.7% to 11.5% and 0.9% to 6.8%, respectively). Notably, FIT and mt-sDNA increases were most evident in age and race-ethnicity groups with the lowest screening rates.

CONCLUSIONS

In an opportunistic CRC screening program, adherence increased but remained below the national 80% goal. While colonoscopy remained the most utilized modality, new colonoscopy uptake declined, compared with rising mt-sDNA and FIT utilization. Among minority populations, new uptake increased most with mt-sDNA and FIT.

A scoping review of research on potential impact of implicit bias in healthcare settings for children with acquired brain injuries

PURPOSE/OBJECTIVE

Acquired brain injury (ABI) is a leading cause of disability in children and adolescents. Implicit biases within pediatric ABI healthcare settings may exert negative effects on clinical interactions and medical decision-making processes. This study aimed to conduct a scoping review of current research that examines the potential impact of implicit biases in such healthcare settings for children with ABI.

RESEARCH METHOD/DESIGN

Following PRISMA-ScR guidelines, a search among five databases (CINAHL, Cochrane CENTRAL, PubMed, PsycArticles, and PsycInfo) was conducted, followed by abstract/full-text screening and data extraction. Main characteristics of the included studies, including research design, relevance to implicit biases, and public health impact were synthesized. The risk of bias of included studies was assessed.

RESULTS

Out of the 203 articles returned from the literature search, a total of three studies met the inclusion criteria for the present review. All studies examined the relevance of racial/ethnic biases for evaluating abusive head trauma or nonaccidental trauma. The included studies had an overall unclear to low risk of biases.

CONCLUSIONS/IMPLICATIONS

This scoping review identified scarce but emerging evidence of the presence and detrimental impact of potential implicit biases on the access and quality of care received by children with ABI. More research is needed to examine the causes, process mechanisms, and consequences of implicit biases in pediatric ABI healthcare settings. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

Prediagnostic 25-Hydroxyvitamin D in Association with Cancer-specific and All-cause Mortality among Low-income, Non-Hispanic Black Americans with Colorectal Cancer

BACKGROUND

Observational studies show high prediagnosis 25-hydroxyvitamin D is associated with lower mortality after colorectal cancer diagnosis. Results from clinical trials suggest vitamin D supplementation may improve outcomes among patients with colorectal cancer. Most studies included few Black Americans, who typically have lower 25-hydroxyvitamin D. We evaluated associations between serum 25-hydroxyvitamin D and mortality after colorectal cancer diagnosis among Black American cases.

METHODS

Data arose from 218 Black Americans from the Southern Community Cohort Study diagnosed with colorectal cancer during follow-up (age 40-79 at enrollment). Prediagnostic 25-hydroxyvitamin D was measured at enrollment and categorized as deficient (<12 ng/mL), insufficient (12-19.9 ng/mL), or sufficient (≥20 ng/mL). Mortality was determined from the National Death Index. Cox proportional hazards were used to estimate HRs and 95% confidence intervals (CI) for associations between 25-hydroxyvitamin D and mortality.

RESULTS

As a continuous exposure, higher 25-hydroxyvitamin D was associated with overall mortality [HR = 0.79 (0.65-0.96) per-SD increase, Ptrend = 0.02] and colorectal cancer-specific mortality [HR = 0.83 (0.64-1.08), Ptrend = 0.16]. For overall mortality, associations were strongest among females [HR = 0.65 (0.42-0.92)], current smokers [HR = 0.61 (0.38-0.98)], and obese participants [HR = 0.47 (0.29-0.77)]. Compared with those with deficiency, participants with sufficient 25-hydroxyvitamin D had lower overall mortality after multivariable adjustment [HR: 0.61 (0.37-1.01)].

CONCLUSIONS

Prediagnosis 25-hydroxyvitamin D is inversely associated with overall and colorectal cancer-specific mortality among Black Americans with colorectal cancer. Correcting vitamin D deficiency may improve survival of these patients, particularly for obese individuals and smokers.

IMPACT

Our results support including more Black Americans in trials of vitamin D supplementations to improve colorectal cancer outcomes.

A Multi-Omics Overview of Colorectal Cancer to Address Mechanisms of Disease, Metastasis, Patient Disparities and Outcomes

Human colorectal cancer (CRC) is one of the most common malignancies in men and women across the globe, albeit CRC incidence and mortality shows a substantial racial and ethnic disparity, with the highest burden in African American patients. Even with effective screening tools such as colonoscopy and diagnostic detection assays, CRC remains a substantial health burden. In addition, primary tumors located in the proximal (right) or distal (left) sides of the colorectum have been shown to be unique tumor types that require unique treatment schema. Distal metastases in the liver and other organ systems are the major causes of mortality in CRC patients. Characterizing genomic, epigenomic, transcriptomic and proteomic (multi-omics) alterations has led to a better understanding of primary tumor biology, resulting in targeted therapeutic advancements. In this regard, molecular-based CRC subgroups have been developed that show correlations with patient outcomes. Molecular characterization of CRC metastases has highlighted similarities and differences between metastases and primary tumors; however, our understanding as to how to improve patient outcomes based on metastasis biology is lagging and remains a major obstacle to improving CRC patient outcomes. In this review, we will summarize the multi-omics features of primary CRC tumors and their metastases across racial and ethnic groups, the differences in proximal and distal tumor biology, molecular-based CRC subgroups, treatment strategies and challenges for improving patient outcomes.

What Are the Factors Underlying Colorectal Cancer Health Disparities?

Black Americans have the highest colorectal cancer incidence and mortality rates of any U.S. racial/ethnic group. Warren Andersen and colleagues report that sociocultural, lifestyle, and healthcare factors did not explain the racial disparity in colorectal cancer incidence, but colorectal cancer screening lessened the disparity. While screening is a cornerstone of colorectal cancer prevention, an improved understanding of etiologic factors may inform additional strategies for primary prevention or risk stratification. As important "established" colorectal cancer risk factors have not been corroborated for Black Americans, this begs the question of what other etiologic factors are important for colorectal cancer development in Black American populations. See related article, p. 595.