Pancreatic cancer among Pacific Islanders: a comprehensive analysis of an understudied racial group

OBJECTIVE

Racial disparities in care and outcome have been demonstrated for several cancers, but it is not clear that a similar discrepancy exists for pancreatic cancer. Furthermore, there are limited data describing the pancreatic cancer experience of Pacific Islanders. The primary objective of this study was to analyze the clinical characteristics, treatment, and outcomes of Pacific Islander patients with pancreatic cancer.

DESIGN

We obtained data for a consecutive sample of pancreatic adenocarcinoma patients who presented to the largest hospital in Hawaii from 1 January 2000, through 31 December 2019. Analyses were performed for the entire population and separately for patients who had their cancer resected. Overall survival was calculated by the Kaplan-Meier method. Cox proportional hazards regression models were constructed to determine the prognostic capacity of clinical and pathologic factors.

RESULTS

A total of 1040 patients were included in the final analysis. Pacific islanders presented at a significantly younger age compared to Whites or Asians and had the highest Medicaid rate. There were no statistically significant racial differences in stage at presentation or treatments. We did not demonstrate an association between race and survival on univariate analysis, nor after adjusting for demographic and tumor factors. Age, stage, and treatment were significantly associated with survival for both univariate and multivariate analyses.

CONCLUSION

We did not demonstrate disparate outcomes among Pacific Islanders with pancreatic cancer. This is likely due in part to the absence of a screening test and the notable poor prognosis of pancreatic adenocarcinoma. Furthermore, equity in treatment may have contributed to racial parity in survival.

Disaggregating Data on Pacific Islander Gastric Cancer Patients Reveals Survival Disparity

PURPOSE

The incidence and prognosis of Pacific Islanders with gastric cancer is not well documented as previous studies have often aggregated this population with Asians. The purpose of our study was to describe patient and tumor characteristics, as well as prognostic factors of Pacific Islanders with gastric cancer.

METHODS

Patients diagnosed with gastroesophageal junction or gastric adenocarcinoma between 2000 and 2014 were identified in the tumor registry of the largest hospital in Hawaii. Overall survival of Asians, Whites, and Pacific Islanders were calculated using the Kaplan-Meier method and log-rank test. Cox proportional hazards regression models were constructed to assess predictors of survival adjusting for clinical and pathological factors.

RESULTS

A total of 615 patients were included in the final analysis. Pacific Islanders were found to present at a younger age, were more often uninsured or had Medicaid insurance, and were diagnosed with a higher stage of cancer compared to their Asian and White counterparts. Pacific Islanders were less likely to undergo surgery even after adjusting for stage. Race was a prognostic factor and survival was lowest among Pacific Islanders, but only if the model was unadjusted for treatment.

CONCLUSIONS

We present an analysis of the largest cohort of Pacific Islander gastric cancer patients. Pacific Islanders have different sociodemographic characteristics and inferior survival compared to Asian patients and should be independently studied.

Disparities in the Care of Differentiated Thyroid Cancer in the United States: Exploring the National Cancer Database

Differentiated thyroid cancer (DTC) treatment is multifaceted, and may be influenced by socio-economic factors. The goal of this study is to examine disparities in DTC treatment. DTC patients from 1998 to 2012 were identified using the National Cancer Database. DTC was identified in 262,041 patients. The mean age was 48.2. The majority of patients (52%) received care at Comprehensive Community Cancer Programs (CCCPs). Total thyroidectomy was less common at Community Cancer Programs (CCPs) [odds ratio (OR): 0.735; 95% confidence interval (CI): 0.707–0.764), and more common at academic centers (OR: 1.129; 95% CI: 1.102–1.157) compared with CCCP. A central neck dissection was performed most often at academic center (20.6%) versus CCP (10.0%). Black patients were less likely to undergo central neck dissection compared with white patients (OR: 0.468; 95% CI: 0.452–0.484). Patients more likely to receive radioactive iodine were white compared with black patients (hazard ratio: 0.833; 95% CI: 0.806–0.861), privately insured compared with uninsured patients (hazard ratio: 1.272; 95% CI: 1.210–1.341), and patients treated at CCCP. Disparities exist in DTC treatment. Individuals at risk for under-treatment are black patients, uninsured patients, and those treated at CCP. As the Affordable Care Act changes access to health care, future studies will be needed to readdress disparities.