Comorbidities and endometrial cancer survival in Hispanics and non-Hispanic whites
We investigated comorbidities and endometrial cancer survival by ethnicity because Hispanic whites (HWs) have worse survival than non-Hispanic whites (NHWs).
An endometrial cancer cohort (1992-2004) established with the Surveillance, Epidemiology and End Results-Medicare-linked database (n = 3,286) was followed through 2007. Endometrial cancer-specific and other cause mortality were evaluated with multivariate hazard ratios (mHRs).
HWs were more likely than NHWs to have regional/distant disease (31.7 vs. 24.8 %), diabetes (31.7 vs. 11.0 %), and hypertension (49.4 vs. 37.6 %). HWs had poorer endometrial cancer-specific survival than NHWs (age-adjusted HR = 1.28; 95% CI 1.01-1.61), but not after adjustment for tumor characteristics and treatment (mHR = 1.02; 95% CI 0.81-1.29). In contrast, even after adjustment for cancer-related factors, other cause mortality in HWs was elevated (mHR = 1.27; 95% CI 1.01-1.59), but not after further adjustment for comorbid conditions (mHR = 1.07; 95% CI 0.85-1.35).
Comorbidities, particularly diabetes, were more common in HWs than in NHWs and impacted other cause mortality. Improving diabetes management may be an effective means of improving other cause mortality. This may be particularly true for HWs, given their particularly high prevalence of diabetes.
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ABSTRACT: To determine the impact of age-adjusted Charlson comorbidity (AAC) index score on survival outcomes for patients with early stage endometrial cancer. After IRB-approval, AAC score at time of hysterectomy was retrospectively tabulated by physician chart review for 671 patients with 2009 FIGO stage I-II endometrioid adenocarcinoma. Patients were grouped based on their AAC scores as follows: 0-1 (n=204), 2-3 (n=293) and >3 (n=174). Kaplan-Meier and log-rank test methods and univariate and multivariate modeling with Cox regression analysis was used to determine significant predictors of each survival endpoint. After a median follow-up of 85months, 225 deaths were recorded (34 from EC and 191 from other causes) with a 7-year Overall (OS) and Disease-specific survival (DSS) of 77.6% and 94.0%, respectively. Based on AAC grouping, the 7-year OS, DSS, and Recurrence-free survival (RFS) were: 92.9%, 96.8%, and 94.9% for AAC 0-1; 81.7%, 95.3%, and 89.8% for AAC 2-3: and 56%, 88.2%, and 84.9% for AAC>3 (p<0.0001, p=0.005 and p=0.013, respectively). On multivariate analyses, higher AAC score, tumor grade, lower uterine segment involvement, and lymphovascular space invasion were significant independent predictors for shorter OS, while for DSS and RFS, higher tumor grade and lymphovascular space invasion were significant predictors of worse outcome, but higher AAC score was not. Comorbidity score is as important as pathological features for predicting overall survival outcomes in patients with early-stage endometrioid endometrial carcinoma. Higher AAC scores accurately predicted for worse OS. Comorbidity score should be considered in prospective clinical trials of endometrial carcinoma.Gynecologic Oncology 10/2013; 131(3). DOI:10.1016/j.ygyno.2013.10.007 · 3.77 Impact Factor
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ABSTRACT: The California Behavioral Risk Factor Surveillance System estimates that 56.6 % of cancer survivors report ever being diagnosed with a chronic disease. Few studies have assessed potential variability in comorbidity by cancer type. We used data collected from a representative sample of adult participants in the 2009 and 2010 California Behavioral Risk Factor Surveillance System (n = 18,807). Chronic diseases were examined with cancer survivorship in case/non-case and case/case analyses. Prevalence ratios (PR) and corresponding 95 % confidence intervals (95 % CI) were estimated using Cox proportional hazards models, with adjustment on race, sex, age, education, smoking, and drinking. Obesity was associated with gynecological cancers (PR 1.74; 95 % CI 1.26-2.41), and being overweight was associated with gynecological (PR 1.40; 95 % CI 1.05-1.86) and urinary (PR 2.19; 95 % CI 1.21-3.95) cancers. Arthritis was associated with infection-related (PR 1.78; 95 % CI 1.12-2.83) and hormone-related (PR 1.20; 95 % CI 1.01-1.42) cancers. Asthma was associated with infection- (PR 2.26; 95 % CI 1.49-3.43), hormone- (PR 1.46; 95 % CI 1.21-1.77), and tobacco- (PR 1.86; 95 % CI 1.25-2.77) related cancers. Chronic obstructive pulmonary disease (COPD) was associated with infection- (PR 2.16; 95 % CI 1.22-3.83) and tobacco-related (PR 2.24; 95 % CI 1.37-3.66) cancers and with gynecological cancers (PR 1.60; 95 % 1.00-2.56). This is the first study to examine chronic disease burden among cancer survivors in California. Our findings suggest that the chronic disease burden varies by cancer etiology. A clear need has emerged for future biological and epidemiological studies of the interaction between chronic disease and cancer etiology in survivors.Journal of Cancer Survivorship 04/2014; 8(3). DOI:10.1007/s11764-014-0350-x · 3.30 Impact Factor
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ABSTRACT: Objectives To compare survival of Hispanic white (HW) and non-Hispanic white (NHW) women with type II endometrial adenocarcinoma (EC). Methods Patients with serous, clear cell or grade 3 endometrioid EC were identified from the Surveillance, Epidemiology, and End Results (SEER) program 1988–2009 and were divided into HW and NHW. HW were subdivided into natives and immigrants. Results Of the 14,434 women, 13,012 (90.2%) were NHW and 1,422 (9.8%) were HW. HW were younger than NHW (mean 63 vs. 68 years, p < 0.001). A higher proportion of HW presented with late stage disease than NHW (43.8% vs. 36.6%, p = 0.04). Performing lymphadenectomy was not different but HW were more likely to have positive lymph nodes than NHW (27.6% vs. 23.1%, p = 0.02). Further, HW were less likely to receive radiation than NHW (39.5% vs. 42.3%, p = 0.04). No difference in clinicopathologic characteristics was found between immigrant and native HW. In multivariate models adjusting for age, stage, histology, surgical treatment, extent of lymphadenectomy, and radiation therapy, no difference in overall survival (OS) (HR 1.06, 95% CI 0.97-1.16, p = 0.19) and cancer-specific survival (CSS) (HR 1.02, 95% CI 0.91-1.14, p = 0.75) was found between HW and NHW. Interestingly, immigrant HW had better OS (HR 0.74, 95% CI 0.62-0.89, p < 0.001) and CSS (HR 0.72, 95% CI 0.58-0.90, P = 0.003) than native HW. Conclusions Although they were more likely to present with advanced stage and positive nodal disease, no difference in outcome was noted between Hispanic and non-Hispanic whites with EC. Interestingly, immigrant HW had more favorable outcome compared to native HW.Gynecologic Oncology 06/2014; 133(3). DOI:10.1016/j.ygyno.2014.03.562 · 3.77 Impact Factor