Principle components analysis with covariance matrix on regional differences for mortality and percentages of cancers in Shandong province [山东省恶性肿瘤死亡率和构成比地区差异协方差矩阵主成分分析]
Guo, XiaoLei, Sun, Jiandong, Ma, Jixiang, Lu, ZiLong, Fu, ZhenTao, Li, Weika, Zhang, Jiyu, & Xu, Aiqiang (2009) Principle components analysis with covariance matrix on regional differences for mortality and percentages of cancers in Shandong province [山东省恶性肿瘤死亡率和构成比地区差异协方差矩阵主成分分析]. Modern Preventive Medicine [现代预防医学], 36(11), pp. 2015-2026.
To explore the characteristics of regional distribution of cancer deaths in Shandong Province with the principle components analysis.
The principle components analysis with co-variance matrix for age-adjusted mortality rates and percentages of 20 types of cancer in 22 counties （cities） were carried out using SAS Software.
Over 90% of the total information could be reflected by the top 3 principle components and the first principle component alone represented more than half of the overall regional variances. The first component mainly reflected the area differences of esophageal cancer. The second component mainly reflected the area differences of lung cancer， stomach cancer and liver cancer. The value of the first principal component scores showed a clear trend that the west areas possessed higher values and the east the lower values. Based on the top two components，the 22 counties （cities） could be divided into several geographical clusters.
The overall difference of regional distribution of cancers in Shandong is dominated by several major cancers including esophageal cancer， lung cancer， stomach cancer and liver cancer. Among them，esophageal cancer makes the largest contribution. If the range of counties （cities） analyzed could be further widened， the characteristics of regional distribution of cancer mortality would be better examined.
Abstract in Chinese
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|Item Type:||Journal Article|
|Additional Information:||Authors: 郭晓雷; 孙建东; 马吉祥; 鹿子龙; 付振涛; 李维卡; 张吉玉; 徐爱强|
|Keywords:||Cancer, Mortality, Percentage, Principle Component Analysis, Shandong, 恶性肿瘤, 死亡率, 构成比, 主成分分析, 山东省|
|Divisions:||Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Current > Schools > School of Public Health & Social Work
|Deposited On:||27 Nov 2013 23:09|
|Last Modified:||08 Oct 2014 00:42|
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