Peer navigation improves diagnostic follow-up after breast cancer screening among Korean American women: results of a randomized trial

Cancer Causes Control. 2010 Nov;21(11):1931-40. doi: 10.1007/s10552-010-9621-7. Epub 2010 Jul 31.


Objective: To test an intervention to increase adherence to diagnostic follow-up tests among Asian American women.

Methods: Korean American women who were referred for a diagnostic follow-up test (mainly diagnostic mammograms) and who had missed their follow-up appointment were eligible to participate in the study. Women from two clinics (n = 176) were randomly allocated to a usual care control arm or a peer navigator intervention arm. A 20-min telephone survey was administered to women in both study arms six months after they were identified to assess demographic and socio-economic characteristics and the primary outcome, self-reported completion of the recommended follow-up exam.

Results: Among women who completed the survey at six-month follow-up, self-reported completion of follow-up procedures was 97% in the intervention arm and 67% in the control arm (p < 0.001). Based on an intent-to-treat analysis of all women who were randomized and an assumption of no completion of follow-up exam for women with missing outcome data, self-reported completion of follow-up was 61% in the intervention arm and 46% in the usual care control arm (p < 0.069).

Conclusions: Our results suggest that a peer navigator intervention to assist Korean American women to obtain follow-up diagnostic tests after an abnormal breast cancer screening test is efficacious.

Publication types

  • Multicenter Study
  • Randomized Controlled Trial
  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Adult
  • Asian Americans*
  • Breast Neoplasms / diagnosis*
  • Data Collection
  • Delegation, Professional
  • Delivery of Health Care*
  • Early Detection of Cancer*
  • Female
  • Follow-Up Studies
  • Humans
  • Interviews as Topic
  • Mammography
  • Middle Aged
  • Patient Compliance
  • Peer Group*
  • Referral and Consultation
  • Republic of Korea / ethnology
  • United States