# Stress, inflammation, and health-related quality of life of long-term breast cancer survivors

> **NIH NIH R21** · STANFORD UNIVERSITY · 2024 · $396,543

## Abstract

A breast cancer (BC) diagnosis is a significant life event that can adversely impact health-related quality of life
(HRQOL) in BC survivors by inducing major stress associated with diagnosis and treatment over the short-term.
Over the long-term, BC survivors can also experience major stress associated with persistent symptoms and
treatment-related late effects, as well as related psychological, social, and financial stress that persist long into
survivorship, adversely affecting HRQOL in long-term BC survivors. There is growing evidence that in addition
to these individual-level stressors, neighborhood-level stressors of the social and built environments also
adversely impact cancer survivorship outcomes, including HRQOL. Most prior studies of HRQOL, however,
examined individual-level stressors only and were focused on short-term BC survivors, primarily from non-
Hispanic White (NHW) populations. There is a significant gap in knowledge about multi-level stressors that
adversely impact HRQOL among long-term BC survivors, and it is not known whether key stressors differ among
survivors from different racial and ethnic minoritized (REM) and immigrant populations who likely have a greater
burden of both individual-level and neighborhood-level stressors. We will conduct the R21 pilot study in the
Northern California Breast Cancer Family Registry (NC-BCFR), a prospective population-based cohort enriched
with African American, Asian American, and Hispanic women with incident BC diagnosed from 1995-2009 who
have been actively followed for 14-28 years since diagnosis. From the 1,116 active long-term BC survivors who
completed the latest follow-up (2019-2022), we will select a representative sample of BC survivors who self-
identified as African American, Asian American, or Hispanic. We will collect questionnaire data online or by
phone interview on HRQOL, individual-level stressors (cancer-specific and social stressors), and updated
sociodemographic characteristics for 270 participants (90 African American, 90 Asian American, 90 Hispanic
survivors). Using geospatial data from the American Community Survey, we will append census-tract level
neighborhood characteristics and derive social neighborhood-level stressors to geocoded addresses. We will
collect blood samples for 176 participants and measure C-reactive protein (CRP) and a panel of cytokines to
explore associations with multi-level stressors and with HRQOL. In Aim 1, we will explore associations between
multi-level stressors and HRQOL and identify key stressors in each racial, ethnic, and nativity group. In Aim 2,
we will assess variation in inflammatory biomarkers by multi-level stressors and by HRQOL. The findings from
this R21 pilot study will inform the design of a larger study of stress, inflammation, and HRQOL among long-term
BC survivors. The identification of specific long-term BC survivor groups with low HRQOL and specific stressor
profiles will inform survivorship care and lay the foundati...

## Key facts

- **NIH application ID:** 10869249
- **Project number:** 1R21CA290430-01
- **Recipient organization:** STANFORD UNIVERSITY
- **Principal Investigator:** ESTHER M. JOHN
- **Activity code:** R21 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 2024
- **Award amount:** $396,543
- **Award type:** 1
- **Project period:** 2024-06-01 → 2026-05-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/10869249

## Citation

> US National Institutes of Health, RePORTER application 10869249, Stress, inflammation, and health-related quality of life of long-term breast cancer survivors (1R21CA290430-01). Retrieved via AI Analytics 2026-05-31 from https://api.ai-analytics.org/grant/nih/10869249. Licensed CC0.

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