Racial and ethnic disparities in mental health among breast cancer patients and survivors in the United States.

OBJECTIVE

To decompose the mental health disparities between breast cancer patients and survivors (hereafter survivors) of racial and ethnic minority groups and non-Hispanic White survivors into the contributions of individual-, interpersonal-, community-, and societal-level determinants.

DATA SOURCES AND STUDY SETTING

We used data from the 2010-2020 Medical Expenditure Panel Survey Household Component (MEPS-HC). Our primary outcome was whether the person had mental health conditions or not.

STUDY DESIGN

We employed the Kitagawa-Oaxaca-Blinder (KOB) method to understand to what extent the differences in outcomes were explained by the differences in the determinants between non-Hispanic Black or Hispanic breast cancer survivors and non-Hispanic White survivors. We also bifurcated the Hispanic sample analysis by the US-born status (and county of origin).

DATA COLLECTION/EXTRACTION METHODS: Confidential geographic identifiers are utilized to supplement the MEPS-HC data with information on community characteristics and local healthcare resources.

PRINCIPAL FINDINGS

The prevalence of mental health conditions among non-Hispanic Black and Hispanic breast cancer survivors was 26.1% (95% CI: 20.4, 31.7) and 28.3% (95% CI: 21.9, 34.6), respectively. These rates were higher than those for their non-Hispanic White counterparts, 19.7% (95% CI: 17.4, 21.9). In our KOB model, the disparity between non-Hispanic Black and White survivors was fully explained by differences in education, health, and family structure, with community- and societal-level determinants playing no significant role. Conversely, our KOB model did not explain any of the overall differences between Hispanic and non-Hispanic White survivors. However, for foreign-born Hispanic survivors, the disparity was fully explained by a combination of individual- and societal-level determinants.

CONCLUSIONS

Our findings, which identify specific individual-, interpersonal-, and societal- determinants that were associated with racial and ethnic differences in mental health, can be used by clinicians and policymakers to proactively address racial and ethnic disparities in health.