期刊
CLINICAL GENITOURINARY CANCER
卷 18, 期 2, 页码 E91-E102出版社
CIG MEDIA GROUP, LP
DOI: 10.1016/j.clgc.2019.09.002
关键词
Age; Gender; Health status disparities; Race/ethnicity; Urinary bladder neoplasms
资金
- National Cancer Institute of the National Institutes of Health [R21CA185931]
Disparities in stage at diagnosis for bladder cancer were observed by race/ethnicity and gender within a large, diverse integrated delivery system. As health care coverage within an equal-access system did not eliminate previously reported disparities, research is needed to identify etiologic factors or aspects of care delivery that may contribute to disparities in stage at diagnosis. Background: Disparities in bladder cancer survival by race/ethnicity and gender are likely related to differences in diagnosis. We assessed disparities in stage at diagnosis and potential contributing factors within a large, integrated delivery system. Patients and Methods: We conducted a retrospective cohort study of 7244 patients with bladder cancer age >= 21 years diagnosed from January 2001 to June 2015 within Kaiser Permanente Southern California. Bivariate analyses compared stage at diagnosis - as well as comorbidities, health plan membership length, and health care utilization prior to diagnosis - by race/ethnicity, gender, and age. Multivariable generalized linear mixed models with urologist as a random effect were used to estimate odds ratios (ORs) and 95% confidence intervals (Cis) for diagnosis of muscle-invasive bladder cancer (MIBC) versus non-muscle-invasive bladder cancer. Results: In multivariable analyses, stage at diagnosis varied significantly by race/ethnicity (P < .001). Non-Hispanic black patients had significantly higher odds of being diagnosed with MIBC than non-Hispanic white patients (OR, 1.33; 95% CI, 1.05-1.67), whereas Asian patients had significantly lower odds (OR, 0.67; 95% CI, 0.49-0.91). Women were significantly more likely to be diagnosed with MIBC than men (OR, 1.40; 95% CI, 1.22-1.61). Non-Hispanic black women had the highest proportion (39%) of MIBC diagnoses. Among Hispanic and Asian patients, a greater proportion of diagnoses occurred at younger ages.Co nclusions: Health care coverage within an equal-access system did not eliminate disparities in stage at diagnosis by race/ethnicity or gender. Studies are needed to identify etiologic factors and aspects of care delivery (eg, patient-physician interactions) that may affect the diagnostic process to inform efforts to improve health equity. (C) 2019 Elsevier Inc. All rights reserved.
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