Future efforts should focus on developing interventions and policies that target rural residents and lower SES areas to eliminate disparities in CRC-related outcomes.
The objectives of this study were to examine the outcomes of late stage breast cancer diagnosis, receiving first course treatment, and breast cancer-related death by race, age, and rural/urban residence in Georgia. The authors used cross-sectional and follow-up data (1992-2007) for Atlanta and Rural Georgia cancer registries that are part of the National Cancer Institute's Surveillance, Epidemiology, and End Results Program (N = 23,500 incident breast cancer cases in non-Hispanic whites or non-Hispanic African Americans). Multilevel modeling and Cox proportional hazard models revealed that compared to whites, African American women had significantly increased odds of late stage diagnosis (odds ratio [OR] = 2.08, p = 0.0001) and unknown tumor stage (OR = 1.27, p = 0.0001), decreased odds of receiving radiation (OR = 0.93, p = 0.041) or surgery (OR = 0.50, p = 0.0001), and increased risk of death following breast cancer diagnosis (hazard rate ratio [HR] = 1.50, p = 0.0001). Increased age was significantly associated with the odds of late/unknown stage at diagnosis, worse treatment, and survival. Women residing in rural areas had significantly decreased odds of receiving radiation and surgery with radiation (OR = 0.59, p = 0.0001), and for receiving breast-conserving surgery compared to mastectomy (OR = 0.73, p = 0.005). Factors affecting each level of the breast cancer continuum are distinct and should be examined separately. Efforts are needed to alleviate disparities in breast cancer outcomes in hard-to-reach populations.
The results obtained from these three indices were strikingly similar. For patients with severe comorbidity, all three indices were statistically significant in predicting shorter survival after surgery for colon cancer.
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