Statistics of Cervical Cancer
Worldwide, cervical cancer is the second most common cancer in women.
In 2005, there were over 500 000 new cases of cervical cancer, of which
over 90% were in developing countries, and almost 260 000 women died of
this cancer, nearly 95% of them in developing countries.1
In 2005, cervical cancer was the ninth most common cancer in females
in Hong Kong. According to the Hong Kong Cancer Registry, there were 376
new cases of cervical cancer, accounting for 3.6% of all new cancer cases
in females. The crude incidence rate was 10.6 per 100 000 female population.
The age-standardised incidence rate was 7.8 per 100 000 standard population.
The median age at diagnosis was 52 years old. Meanwhile, cervical cancer
was the eighth most common cause of female cancer registered deaths in
2007. There were 129 female registered deaths due to this cancer, accounting
for 2.7% of female cancer registered deaths. In 2007, the crude death
rate was 3.5 per 100 000 female population and the age-standardised mortality
rate was 2.3 per 100 000 standard population.
The following figure shows the decreasing trend of age-standardised incidence
and mortality rates of cervical cancer in Hong Kong between 1983 and 2007.
These rates have been adjusted for the effect of changing age structure
in the population over the years to allow for meaningful comparison. The
decreasing trend may be due to more and more women becoming aware of the
condition and received regular cervical screening.
| 1 Source: |
World Health Organization 2006. Comprehensive
Cervical Cancer Control: a guide to essential practice. |
| [Trend of Age-standardised Incidence1 & Age-standardised Mortality Rates2-4 of Cervical Cancer in Hong Kong (1983-2007) ] |
Footnotes:
- Data for compiling 2006 and 2007 incidence rates are not yet published.
- The age-standardised incidence and mortality rates are compiled based
on the world standard population specified in GPE Discussion Paper Series:
No.31, EIP/GPE/EBD, World Health Organisation, 2001.
- Data in the above two charts from 1996 onwards are compiled based
on the population estimates under the "resident population"
approach instead of the "extended de facto" approach.
- From 2001 onwards, figures in cervical cancer new cases and deaths
are complied based on ICD-10 (C53) and thus may not be comparable with
figures for previous years complied based on ICD-9 (180).
| Sources: |
Department of Health
Hong Kong Cancer Registry, Hospital Authority
Census and Statistics Department |
The following figure shows the average age-specific incidence and mortality
rates of cervical cancer in Hong Kong. Both incidence rate and mortality
rate generally increase with age with a peak at the age group of 80-84
and the group of 85 and above, respectively. This means elderly women
are at higher risk of developing and dying from cervical cancer. Incidence
is very low for women aged below 25 years.
[Average Age-specific Incidence1 and Mortality Rates2-4 of Cervical Cancer ]
Footnotes:
- Data for compiling 2006 and 2007 incidence rates are not yet published.
- The average age-specific incidence (mortality) rates over a 5-year
period are calculated by dividing the average number of new cases (deaths)
over the period by the female population at the middle of the period.
- Data in the above chart are compiled based on the population estimates
under the "resident population" approach instead of the "extended
de facto" approach.
- From 2001 onwards, figures in cervical cancer new cases and deaths
are compiled based on ICD-10 (C53).
| Sources: |
Department of Health
Census and Statistics Department
Hong Kong Cancer Registry, Hospital Authority |
|