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Breast Cancer

Breast Cancer

20 May 2021

Introduction

Breast cancer is the commonest cancer among females in Hong Kong. It accounted for 27.2% of all new cancers in females diagnosed in Hong Kong in 2018. Rarely, it also occurs in males. In 2018, there were 27 new cases of breast cancer in males.

Incidence

In 2018, 4618 new cases of female breast cancer were diagnosed and the crude incidence rate was 114.3 per 100000 female population. The age-standardised incidence rate was 70.8 per 100000 standard population.

Number of new cases and crude incidence rate of breast cancer in female, 1983-2000 (View)

Number of new cases and crude incidence rate of breast cancer in female, 2001-2018 (View)

Mortality

Breast cancer is the third leading cause of cancer deaths among female in Hong Kong, after lung and colorectal cancers. In 2019, a total of 852 women died from this cancer, accounting for 13.7% of all cancer deaths in females. The crude death rate of breast cancer was 20.9 per 100000 female population. The age-standardised death rate of breast cancer was 11.2 per 100000 standard population. 

Number of registered deaths and crude death rate of breast cancer in female, 1981-2000 (View)

Number of registered deaths and crude death rate of breast cancer in female, 2001-2019 (View)

Trends of incidence and mortality

The age-standardised incidence rate of female breast cancer had an upward trend between 1983 and 2018. However, the age-standardised death rate had no significant trend between 1981 and 2019.

Age-standardised incidence and death rates* of breast cancer in female, 1981-2019

Age-standardised incidence and death rates of breast cancer in female, 1981-2019

Notes:

*

Age-standardised rates are compiled based on the world standard population specified in GPE Discussion Paper Series: No.31, EIP/GPE/EBD, World Health Organization, 2001.

 

 

Data in the above charts from 1996 onwards are compiled based on the population estimates under the "resident population" approach instead of the "extended de facto" approach.

 

 

Classification of diseases and causes of death is based on the International Statistical Classification of Diseases and Related Health Problems (ICD) 10th Revision from 2001 onwards. Figures from 2001 onwards may not be comparable with figures for previous years which were compiled based on the ICD 9th Revision.

Sources:

 

Census and Statistics Department
Department of Health
Hong Kong Cancer Registry, Hospital Authority


Breast cancer corresponds to codes 174-175 in ICD-9 and C50 in ICD-10.

For more information about cancer statistics in Hong Kong, please visit the website of the Hong Kong Cancer Registry.

For health information relating to cancer, please visit the Cancer Online Resource Hub.