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Volume 14, Number 10—October 2008

Research

Pyogenic Liver Abscess as Endemic Disease, Taiwan

Feng-Chiao Tsai, Yu-Tsung Huang, Luan-Yin Chang, and Jin-Town WangComments to Author 
Author affiliations: National Taiwan University Hospital, Taipei, Taiwan; National Taiwan University, College of Medicine, Taipei;

Main Article

Figure 2

Incidence of pyogenic liver abscess in Taiwan, showing a steady increase from 1996 to 2004. The incidence is expressed as the number of new cases reported from the population (the National Health Insurance database) per year. A) The linear increase of the primary incidence data (raw incidence) with the year can be described by this formula: incidence (×1/100,000) = 0.860 × year – 1704.66 (r = 0.978, p<0.001). B) The linear increase of the standardized incidence data (the incidence normalized according to the age distribution of the population) with the year can be described by this formula: incidence (×1/100,000) = 0.512 × year – 1010.68 (r = 0.923, p<0.001). r, Pearson correlation coefficient.

Figure 2. Incidence of pyogenic liver abscess in Taiwan, showing a steady increase from 1996 to 2004. The incidence is expressed as the number of new cases reported from the population (the National Health Insurance database) per year. A) The linear increase of the primary incidence data (raw incidence) with the year can be described by this formula: incidence (×1/100,000) = 0.860 × year – 1704.66 (r = 0.978, p<0.001). B) The linear increase of the standardized incidence data (the incidence normalized according to the age distribution of the population) with the year can be described by this formula: incidence (×1/100,000) = 0.512 × year – 1010.68 (r = 0.923, p<0.001). r, Pearson correlation coefficient.

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