PCN106 Persistence in Patients With Breast Cancer Treated With Tamoxifen or Aromatase Inhibitors: Results of a Retrospective Cohort Study

Abstract Background: The health burden of breast cancer is rising in China. The effect of informed diagnosis on long-term survival has not been fully understood. This retrospective cohort study aims at exploring the association between early informed diagnosis and survival time in breast cancer patients.Methods: 12,327 breast cancer patients were enrolled between October 2002 and December 2016. Potential factors including knowing cancer diagnosis status, gender, age, clinical-stage, surgical history, the grade of reporting hospital and diagnostic year were registered. We followed up all participants every 6 months until June 2017.Results: By June 2017, 18.04% of the participants died of breast cancer. Both the 3-year and 5-year survival rate of whom knew cancer diagnosis were longer (P<0.001). By stratified analysis, except subgroups of male patients and patients in stage III, patients knowing diagnosis showed a better prognosis in all the other subgroups (P<0.05). By Cox regression analysis, it was showed that not knowing cancer diagnosis was an independent risk factor for survival in breast cancer patients (P<0.001).Conclusions: Being aware of their cancer diagnosis plays a protective role in extending the survival time in breast cancer patients, which suggests medical staff and patients’ families disclose cancer diagnosis to patients timely.

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FOLLOW-UP OF PATIENTS AND PROGNOSTIC IMPACT OF TUMOUR MARKER CA 15-3 ON PATIENTS OF BREAST CANCER: A RETROSPECTIVE COHORT STUDY

International Journal of Advanced Research ◽

10.21474/ijar01/12052 ◽

2020 ◽

Vol 8 (11) ◽

pp. 656-660

Author(s):

Anjali Vinocha ◽

Keyword(s):

Breast Cancer ◽

Cohort Study ◽

Cancer Patients ◽

Retrospective Cohort Study ◽

Retrospective Cohort ◽

Relative Survival ◽

Rank Test ◽

Prognostic Impact ◽

Breast Cancer Patients

Introduction:Breast cancer is the most common cancer in women, with 5- and 10-year relative survival rates are 91% and 84%, respectively for women with invasive breast cancer. This study aimed to detect the role of serum breast cancer marker CA 15-3 for early detection of metastasis, relapse or recurrence for management of breast cancer patients. Methods: It was a retrospective cohort study with a total of 132 breast cancer patients from the year 2010 to march 2020 were taken and followed up. For these patients demographic, biochemical parameters, radiological and clico-pathological data were collected and analysed. Result: The mean age at the time of presentation and mean duration of follow-up was 47 years and 31 months respectively. There was elevation in the serum level of CA 15-3 at the time of diagnosis of metastasis, recurrence or residual disease in 41 patients. This shows that sensitivity of elevated CA 15-3 (> 30 IU/ml) level in Ca Breast patients was 84%, 75 % and 75 % with respect to metastasis, recurrence and relapse. Log Rank test Chi- square value was 7.39 which was statistically significant (p=0.007). Cox proportional hazard model was created for effect of age at presentation, CA 15-3 at the time of diagnosis and MRM on distant metastasis and was statistically significant (p=0.037). Conclusion: We recommend that for the management of breast cancer patients, Cancer antigen (CA 15-3) levels can be used as prognostic marker for early diagnosis of metastasis, recurrence or relapse.

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