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Decomposing contribution of age and non-age factors to rapid growth of lung cancer in Xuanwei over past 30 years.

Chen Y, Xiao Y, Yang Y, Duan J, Xu W - BMC Public Health (2015)

Bottom Line: Demographic and death data was collected and used.From 1992 to 2005, the contribution proportion had reduced to 75.39 %.Policy-making should focus on the non-age factors.

View Article: PubMed Central - PubMed

Affiliation: Department of Chronic disease, Yunnan center for disease control and prevention, Dongsi Street, Kunming, China. yncdccy@126.com.

ABSTRACT

Background: From 1973 to 2005, the lung cancer mortality in Xuanwei had increased constantly. Effect analysis of age and non-age factors on lung cancer is important for local policy-making.

Methods: Demographic and death data was collected and used. Factors of lung cancer were classified into age and non-age factors. The contribution of the two factors to lung cancer was evaluated by method of decomposing the differences of mortality rate.

Results: For males, the non-age factors were the major contributor to growth of lung cancer mortality, and 78.46 % of all growth was attributed to non-age factors. For females, the non-age factors were the absolute contributor to growth of lung cancer in 1973-1992. From 1992 to 2005, the contribution proportion had reduced to 75.39 %.

Conclusions: Aging was one of risk factors for lung cancer in Xuanwei, but not the main factor. It was supposed that multiple environmental risk factors were related with high growth of lung cancer in Xuanwei. Policy-making should focus on the non-age factors.

No MeSH data available.


Related in: MedlinePlus

The people pyramid of Xuan Wei in three periods. a composition of the population(horizontal axis) and age groups(vertical axis) in 1973–1975. b composition of the population(horizontal axis) and age groups(vertical axis) in 1990–1992. c composition of the population (horizontal axis) and age groups(vertical axis) in 2004–2005
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Fig1: The people pyramid of Xuan Wei in three periods. a composition of the population(horizontal axis) and age groups(vertical axis) in 1973–1975. b composition of the population(horizontal axis) and age groups(vertical axis) in 1990–1992. c composition of the population (horizontal axis) and age groups(vertical axis) in 2004–2005

Mentions: Table 1 presents the proportion of population by sex, age groups in Xuanwei in 1973–1975, 1990–1992, and 2004–2005. Figure 1 illustrates that the population pyramid in Xuanwei in the three periods. It highlights the growing proportion of older population in parallel with a decreasing proportion of younger population. The triangular young population pyramid of 1970s’ was already replaced with an aged structure in 2000s’.Table 1


Decomposing contribution of age and non-age factors to rapid growth of lung cancer in Xuanwei over past 30 years.

Chen Y, Xiao Y, Yang Y, Duan J, Xu W - BMC Public Health (2015)

The people pyramid of Xuan Wei in three periods. a composition of the population(horizontal axis) and age groups(vertical axis) in 1973–1975. b composition of the population(horizontal axis) and age groups(vertical axis) in 1990–1992. c composition of the population (horizontal axis) and age groups(vertical axis) in 2004–2005
© Copyright Policy - OpenAccess
Related In: Results  -  Collection

License 1 - License 2
Show All Figures
getmorefigures.php?uid=PMC4643511&req=5

Fig1: The people pyramid of Xuan Wei in three periods. a composition of the population(horizontal axis) and age groups(vertical axis) in 1973–1975. b composition of the population(horizontal axis) and age groups(vertical axis) in 1990–1992. c composition of the population (horizontal axis) and age groups(vertical axis) in 2004–2005
Mentions: Table 1 presents the proportion of population by sex, age groups in Xuanwei in 1973–1975, 1990–1992, and 2004–2005. Figure 1 illustrates that the population pyramid in Xuanwei in the three periods. It highlights the growing proportion of older population in parallel with a decreasing proportion of younger population. The triangular young population pyramid of 1970s’ was already replaced with an aged structure in 2000s’.Table 1

Bottom Line: Demographic and death data was collected and used.From 1992 to 2005, the contribution proportion had reduced to 75.39 %.Policy-making should focus on the non-age factors.

View Article: PubMed Central - PubMed

Affiliation: Department of Chronic disease, Yunnan center for disease control and prevention, Dongsi Street, Kunming, China. yncdccy@126.com.

ABSTRACT

Background: From 1973 to 2005, the lung cancer mortality in Xuanwei had increased constantly. Effect analysis of age and non-age factors on lung cancer is important for local policy-making.

Methods: Demographic and death data was collected and used. Factors of lung cancer were classified into age and non-age factors. The contribution of the two factors to lung cancer was evaluated by method of decomposing the differences of mortality rate.

Results: For males, the non-age factors were the major contributor to growth of lung cancer mortality, and 78.46 % of all growth was attributed to non-age factors. For females, the non-age factors were the absolute contributor to growth of lung cancer in 1973-1992. From 1992 to 2005, the contribution proportion had reduced to 75.39 %.

Conclusions: Aging was one of risk factors for lung cancer in Xuanwei, but not the main factor. It was supposed that multiple environmental risk factors were related with high growth of lung cancer in Xuanwei. Policy-making should focus on the non-age factors.

No MeSH data available.


Related in: MedlinePlus