Racial disparities in ovarian cancer survival in New York state.

Abstract

5579 Background: Disparities between black and white patients are well documented in gynecologic cancers but information on the contributions of social factors and medical comorbidities is sparse. We examined differences in outcomes amongst black and white women with ovarian cancer in New York State. Methods: Patients with incident ovarian cancer in the New York State Cancer Registry and the Statewide Planning and Research Cooperative System from 2006-2013 were included. Differences in social and demographic factors, comorbidities and tumor characteristics between black and white women were examined with bivariate analysis. Multivariable analyses were used to examine factors associated with specific treatments and survival. Results: Of 5969 patients, 87% were white and 13% black. Age, Hispanic ethnicity and median income were similar between groups. Black women were less likely to be married (27 vs 48%, p < 0.01); and less likely to be privately insured (20 vs 50%, p < 0.01). More black women had comorbidities by Charlson Comorbidity Index (CCI) (63 vs 51%, p < 0.01). Black women were more likely to have Stage IV disease and non-serous histology (p < 0.01). More black women were treated at academic medical centers (67 vs 50%, p < 0.01). Marital status, insurance, CCI, stage, histology and treatment site correlated to the type of treatment received (p < 0.01). Black women received different treatment and had higher odds of receiving no treatment 1.63 (1.24, 2.14); chemotherapy without surgery 1.26 (1.00, 1.59); lower odds of undergoing primary surgical management 0.71 (0.58, 0.86) or chemotherapy following surgery 0.79 (0.66, 0.96; and similar rates of neoadjuvant chemotherapy. The risk of 5 year mortality was 1.14 (1.02, 1.27) times higher for black women compared with whites. Marital status, CCI, stage and histology correlated with overall and disease specific survival among both black and white women (p < 0.01). Conclusions: Multiple factors, including race, are associated with receipt of treatment and survival in ovarian cancer. Treatment for ovarian cancer was significantly different amongst black women than white in New York State. Understanding modifiable influences on racial disparities is imperative to reducing race based differences in outcomes.