Cervical cancer disparities in stage at presentation for disaggregated Asian Americans, Native Hawaiians, and Pacific Islanders.

BACKGROUND: Over 20 million people in the United States identified as Asian American, Native Hawaiian, or Pacific Islander in 2022. Despite the diversity of immigration histories, lived experiences, and health needs within the Asian American, Native Hawaiian, or Pacific Islander community, prior studies in cervical cancer have considered this group in aggregate. OBJECTIVE: We sought to analyze disparities in cervical cancer stage at presentation in the United States, focusing on disaggregated Asian American, Native Hawaiian, or Pacific Islander groups. STUDY DESIGN: Data from the United States National Cancer Database from 2004 to 2020 of 122,926 patients newly diagnosed with cervical cancer were retrospectively analyzed. Asian American, Native Hawaiian, or Pacific Islander patients were disaggregated by country of origin. Logistic regression, adjusted for clinical and sociodemographic factors, was used to calculate adjusted odds ratios. Higher adjusted odds ratios indicate an increased likelihood of metastatic versus nonmetastatic disease at diagnosis. RESULTS: Out of 122,926 patients with cervical cancer, 5142 (4.2%) identified as Asian American, Native Hawaiian, or Pacific Islander. Compared to non-Hispanic White patients, pooled Asian American, Native Hawaiian, or Pacific Islander patients presented at lower stages of cancer (non-Hispanic White: 58.7% diagnosed local/regional, Asian American, Native Hawaiian, or Pacific Islander : 85.6% at local/regional, χ2 P<.001). The largest Asian American, Native Hawaiian, or Pacific Islander subgroups included Filipino Americans (n=1051, 20.4% of Asian American, Native Hawaiian, or Pacific Islander), Chinese Americans (n=995, 19.4%), Asian Indian/Pakistani Americans (n=711, 13.8%), Vietnamese Americans (n=627, 12.2%), and Korean Americans (n=550, 10.7%) respectively. Asian American, Native Hawaiian, or Pacific Islander disaggregation revealed that Pacific Islander American patients had higher odds of presenting with metastatic disease (adjusted odds ratio 1.58, 95% confidence interval 1.21-2.06, P=.001) relative to non-Hispanic White patients. Conversely, Chinese American (adjusted odds ratio 0.47, 95% confidence interval 0.37-0.59, P<.001), Vietnamese American (adjusted odds ratio 0.54, 95% confidence interval 0.41-0.70, P<.001), Hmong American (adjusted odds ratio 0.46, 95% confidence interval 0.22-0.97, P=.040), and Indian/Pakistani American (adjusted odds ratio 0.76, 95% confidence interval 0.61-0.94, P=.013) patients were less likely to present with metastatic disease. Compared to the largest Asian American, Native Hawaiian, or Pacific Islander group (Chinese American), 9 other subgroups were more likely to present with metastatic disease. The largest differences were observed in Pacific Islander American (adjusted odds ratio 3.44, 95% confidence interval 2.41-4.91, P<.001), Thai American (adjusted odds ratio 2.79, 95% confidence interval 1.41-5.53, P=.003), Kampuchean American (adjusted odds ratio 2.39, 95% confidence interval 1.29-4.42, P=.006), Native Hawaiian American (adjusted odds ratio 2.23, 95% confidence interval 1.37-3.63, P=.001), and Laotian American (adjusted odds ratio 2.02, 95% confidence interval 1.13-3.61, P=.017). In contrast, Vietnamese American (adjusted odds ratio 1.20, 95% confidence interval 0.85-1.71, P=.303), and Hmong American (adjusted odds ratio 1.09, 95% confidence interval 0.50-2.37, P=.828) patients did not show a statistically significant difference in presenting with metastatic disease compared to Chinese American patients. CONCLUSION: Aggregated evaluation of the Asian American, Native Hawaiian, or Pacific Islander monolith masks disparities in outcomes for distinct populations at risk for equity gaps. This disaggregation study shows that marginalized groups within the larger Asian American, Native Hawaiian, or Pacific Islander population-including Pacific Islander American and Thai American patients-may face different exposures and larger structural barriers to cancer screening and early-stage diagnosis. A future focus on community-based disaggregated research and tailored interventions is necessary to close these gaps.

Characterizing disparities in receipt of palliative care for Asian Americans, Native Hawaiians, and Pacific Islanders with metastatic cancer in the United States.

PURPOSE: Palliative care plays essential roles in cancer care. However, differences in receipt among individuals identifying as Asian American, Native Hawaiian, and Other Pacific Islanders (AA&NHPI) with cancer are not well-characterized, especially when these diverse groups are disaggregated. We characterized disparities in receipt of palliative care among AA&NHPI patients with AJCC Stage IV prostate, breast, or lung cancer. METHODS: We performed multivariable logistic regressions were performed in this retrospective cohort analysis, using deidentified data from the National Cancer Database (NCDB) of patients diagnosed with AJCC analytic group stage IV breast, lung, or prostate cancer (2004-2018) who were White or of Asian Indian/Pakistani, Chinese, Filipino, Hawaiian, Hmong, Japanese, Kampuchean, Korean, Laotian, Other Pacific Islander, Thai, or Vietnamese descent. We conducted multivariable logistic regression analyses in a retrospective cohort study using deidentified data from the National Cancer Database (NCDB). The study included patients diagnosed with AJCC analytic group Stage IV breast, lung, or prostate cancer between 2004 and 2018, who were White or identified as Asian Indian/Pakistani, Chinese, Filipino, Hawaiian, Hmong, Japanese, Kampuchean, Korean, Laotian, Other Pacific Islander, Thai, or Vietnamese descent. Adjusted odds ratios and 95% confidence intervals of receiving palliative care were measured when comparing White vs. AA&NHPI patients as one cohort and White vs. disaggregated AA&NHPI patients, adjusting for clinical, socioeconomic, and demographic covariates. RESULTS: Among 775,289 individuals diagnosed with cancer (median age: 68 years), no significant differences in palliative care receipt were observed between White patients and aggregated AA&NHPI patients among patients with prostate, breast, or lung cancer. However, disaggregated analyses revealed reduced palliative care receipt for breast cancer patients of Asian Indian/Pakistani descent (AOR 0.75, 95% CI, 0.60-0.94, P = 0.011) and for lung cancer patients of Chinese, Vietnamese, Thai, and Asian Indian/Pakistani descent compared to White patients (Chinese AOR 0.88, [0.81-0.94], P = 0.001; Vietnamese AOR 0.89, [0.80 to 0.99], P = 0.032; Thai AOR 0.64, [0.44-0.92], P = 0.016; Asian Indian/Pakistani AOR 0.83, [0.74-0.93], P = 0.001). Palliative care was greater for patients of Japanese and Hawaiian descent with prostate cancer (Japanese AOR 1.92, [1.32-2.75], P = 0.001; Hawaiian AOR 2.09, [1.20-3.66], P = 0.009), breast cancer (Japanese AOR 1.72, [1.21-2.43], P = 0.001; Hawaiian AOR 1.70, [1.08-2.67], P = 0.021), and lung cancer (Japanese AOR 1.92, [1.70-2.17], P < 0.001; Hawaiian AOR 2.95, [2.5-3.5], P < 0.001), as well as patients of Other Pacific Islander descent with lung cancer (AOR 1.62, [1.34-1.96], P < 0.001). CONCLUSIONS AND RELEVANCE: Our findings demonstrate disparities in receipt of palliative care upon disaggregation of diverse AA&NHPI groups, the need for disaggregated research and targeted interventions that address the unique cultural, socioeconomic, and healthcare system barriers to palliative care receipt.

Genomic analysis of early-stage lung cancer reveals a role for TP53 mutations in distant metastasis.

Patients with non-small cell lung cancer (NSCLC) who have distant metastases have a poor prognosis. To determine which genomic factors of the primary tumor are associated with metastasis, we analyzed data from 759 patients originally diagnosed with stage I-III NSCLC as part of the AACR Project GENIE Biopharma Collaborative consortium. We found that TP53 mutations were significantly associated with the development of new distant metastases. TP53 mutations were also more prevalent in patients with a history of smoking, suggesting that these patients may be at increased risk for distant metastasis. Our results suggest that additional investigation of the optimal management of patients with early-stage NSCLC harboring TP53 mutations at diagnosis is warranted in light of their higher likelihood of developing new distant metastases.