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, 90 (11), 2157-66

Estimation and Projection of the National Profile of Cancer Mortality in China: 1991-2005

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Estimation and Projection of the National Profile of Cancer Mortality in China: 1991-2005

L Yang et al. Br J Cancer.

Abstract

There are no national-level data on cancer mortality in China since two surveys in 1973-1975 and 1990-1992 (a 10% sample), but ongoing surveillance systems, based on nonrandom selected populations, give an indication as to the trends for major cancers. Based on a log-linear regression model with Poisson errors, the annual rates of change for 10 cancers and all other cancers combined, by age, sex and urban/rural residence were estimated from the data of the surveillance system of the Center for Health Information and Statistics, covering about 10% of the national population. These rates of change were applied to the survey data of 1990-1992 to estimate national mortality in the year 2000, and to make projections for 2005. Mortality rates for all cancers combined, adjusted for age, are predicted to change little between 1991 and 2005 (-0.8% in men and +2.5% in women), but population growth and ageing will result in an increasing number of deaths, from 1.2 to 1.8 million. The largest predicted increases are for the numbers of female breast (+155.4%) and lung cancers (+112.1% in men, +153.5% in women). For these two sites, mortality rates will almost double. Cancer will make an increasing contribution to the burden of diseases in China in the 21st century. The marked increases in risk of cancers of the lung, female breast and large bowel indicate priorities for prevention and control. The increasing trends in young age groups for cancers of the cervix, lung and female breast suggest that their predicted increases may be underestimated, and that more attention should be paid to strategies for their prevention and control.

Figures

Figure 1
Figure 1
Population pyramids for the years 1990, 2000, 2005 by area, sex and age group in China.
Figure 2
Figure 2
Total number of deaths for certain cancers in the years 1990, 2000 and 2005 in China, by site and sex.
Figure 3
Figure 3
Figure 3
Figure 3
(continued)

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