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Nasopharyngeal Cancer

Nasopharyngeal Cancer

9 November 2018

Introduction

Nasopharyngeal cancer (NPC) is the malignant changes in the tissues of the nasopharynx. The cancer is more common in southern part of China than in Western countries. In 2015, NPC was the sixth commonest cancer in men and fourteenth in women. It accounted for 2.9% of all new cancer cases.

Incidence

In 2015, there were 876 new cases of NPC, with 648 cases of males and 228 cases of females. The male to female ratio was about 2.8 to 1. The crude incidence rates were 19.3 for male and 5.8 for female per 100000 population of respective sex. The age-standardised incidence rates were 13.0 for male and 4.0 for female per 100000 standard population. 

Trend of incidence

The age-standardised incidence rate for both sexes had a downward trend between 1983 and 2015.

Number of new cases and crude incidence rate of nasopharyngeal cancer by sex, 1983-2000 (View)

Number of new cases and crude incidence rate of nasopharyngeal cancer by sex, 2001-2015 (View)

Age-standardised incidence rate* of nasopharyngeal cancer by sex, 1983-2015

Age-standardised incidence rate of nasopharyngeal cancer by sex, 1983-2015

Notes:

*

Age-standardised incidence 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. Also, the 2016 Population By-census conducted from June to August 2016 provides a benchmark for revising the population figures compiled since the 2011 Population Census. Population-related figures from 2012 to 2015 have been revised accordingly.
    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

 

Mortality

NPC caused 327 deaths in 2016, accounting for 2.3% of all cancer deaths. It was the tenth fatal cancer in Hong Kong. The crude death rates were 7.5 for male and 1.9 for female per 100000 population of respective sex. The age-standardised death rates were 4.7 for male and 1.1 for female per 100000 standard population. 

Trend of mortality

The age-standardised death rate for both sexes had a downward trend between 1981 and 2016.

Number of registered deaths and crude death rate of nasopharyngeal cancer by sex, 1981-2000 (View)

Number of registered deaths and crude death rate of nasopharyngeal cancer by sex, 2001-2016 (View)

Age-standardised death rate* of nasopharyngeal cancer by sex, 1981-2016

Age-standardised death rate of nasopharyngeal cancer by sex, 1981-2016

Notes:

*

Age-standardised death 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. Also, the 2016 Population By-census conducted from June to August 2016 provides a benchmark for revising the population figures compiled since the 2011 Population Census. Population-related figures from 2012 to 2015 have been revised accordingly.

   

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


Nasopharyngeal cancer corresponds to codes 147 in ICD-9 and C11 in ICD-10.

Related information

Information for Health Professionals - Recommendations on Prevention and Screening for Nasopharyngeal Cancer

Cancer Prevention Series (8) - Nasopharyngeal Cancer Prevention and Screening

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