Background. This study evaluated the perceptions of patients with brea
st cancer of their medical interactions with providers. The determinan
ts and psychological consequences of communication problems also were
examined. Methods. Ninety-seven patients with Stage I or II breast can
cer completed a set of validated questionnaires before initiating post
operative therapy. Data on psychological distress were collected at ba
seline and 3-month follow-up, and multivariate models were fit to expl
ain the relationship between pretreatment communication problems and s
ubsequent psychological distress. Data on clinical variables were abst
racted from medical records. Results. A substantial proportion of pati
ents (84%) reported difficulties communicating with the medical team.
Communication problems were more common among patients who were less o
ptimistic about their disease and had less assertive coping styles. Pa
tient-reported communication problems were associated with increased a
nxiety, depression, anger, and confusion at the 3-month follow-up. The
association between communication problems and mood disturbance remai
ned significant, although small, after adjusting for baseline mood dis
turbance, demographic, clinical, and coping style variables. Conclusio
n. Interventions that enhance communication between patients with brea
st cancer and their providers may improve patients' psychological adju
stment to treatment. Conversely, interventions that lower distress and
modify coping style may enhance communication.