Introduction: Worldwide, breast cancer is the commonest cause of cancer death in women. However, thesurvival rate varies across regions at averages of 73%and 57% in the developed and developing countries,respectively.
Objective: This study aimed to determine the survival rate of breast cancer among the women ofMalaysia and characteristics of the survivors.
Method: A retrospective cohort study was conducted on secondarydata obtained from the Breast Cancer Registry and medical records of breast cancer patients admitted toHospital Kuala Lumpur from 2005 to 2009. Survival data were validated with National Birth and Death Registry.Statistical analysis applied logistic regression, the Cox proportional hazard model, the Kaplan-Meier methodand log rank test.
Results: A total of 868 women were diagnosed with breast cancer between January 2005 andDecember 2009, comprising 58%, 25% and 17% Malays, Chinese and Indians, respectively. The overall survivalrate was 43.5% (CI 0.573-0.597), with Chinese, Indians and Malays having 5 year survival rates of 48.2% (CI0.444-0.520), 47.2% (CI 0.432-0.512) and 39.7% (CI 0.373-0.421), respectively (p<0.05). The survival rate waslower as the stages increased, with the late stages were mostly seen among the Malays (46%), followed by Chinese(36%) and Indians (34%). Size of tumor>3.0cm; lymph node involvement, ERPR, and HER 2 status, delayedpresentation and involvement of both breasts were among other factors that were associated with poor survival.
Conclusions: The overall survival rate of Malaysian women with breast cancer was lower than the westernfigures with Malays having the lowest because they presented at late stage, after a long duration of symptoms,had larger tumor size, and had more lymph nodes affected. There is an urgent need to conduct studies on whythere is delay in diagnosis and treatment of breast cancer women in Malaysia.