Fam
Med 1998 Mar;30(3):228-35
Disaggregating the effects of race on breast cancer survival.
Howard DL, Penchansky R, Brown MB.
University of North Carolina at Chapel Hill, USA. dhoward@mail.schsr.unc.edu
BACKGROUND AND OBJECTIVES: This study examines differences
in breast cancer survival between African-American and white women to
determine whether there is a racial difference in survival after accounting
for established influences on outcome, such as stage of cancer, health
status, health behavior, utilization patterns, access to care, quality
of care, and the doctor-patient relationship.
METHODS: This study is a retrospective review of clinical
records. The sample consists of 246 patients of three staff model HMOs
who had mastectomies at stage II or above. Data on patient demographics,
stage of cancer, health status, and health behavior and utilization, including
preventive care, were extracted from patient records. Multivariate logistic
regression was used to predict the determinants of advanced stage of cancer.
Cox survival analysis was used to predict the determinants of survival.
RESULTS: Missed appointments and stage of cancer were
the key determinants of survival. The effect of race on survival was marginal
after adjusting for these factors. Race, patients who missed appointments,
and patients who delayed in reporting breast cancer symptoms were
determinants of advanced stage. African-Americans were overrepresented
among patients who missed appointments.
CONCLUSIONS: Missed appointments was a determinant of
both advanced stage and shorter survival. This measure is an important
component of how race affects survival. Compliance with appointment keeping
and alleviating reasons for noncompliance must be considered as factors
in breast cancer survival.
PMID: 9532448 [PubMed - indexed for MEDLINE]