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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 3

Deaths from pyogenic liver abscess in Taiwan, showing a steady decrease from 1996 to 2004. Mortality rate is expressed as the number of deaths reported from pyogenic liver abscess cases per year. A) The linear decrease of the primary mortality data (raw mortality) with the year can be described with this formula: mortality (×1/100) = −0.314 × year + 639.58 (r = 0.910, p<0.001). B) The linear decrease of the standardized mortality data (the mortality normalized according to the age distribution of the population) with the year can be described with this formula: mortality (×1/100) = −0.383 × year +776.59 (r = 0.944, p<0.001). r, Pearson correlation coefficient. p<0.05 is considered statistically significant.

Figure 3. Deaths from pyogenic liver abscess in Taiwan, showing a steady decrease from 1996 to 2004. Mortality rate is expressed as the number of deaths reported from pyogenic liver abscess cases per year. A) The linear decrease of the primary mortality data (raw mortality) with the year can be described with this formula: mortality (×1/100) = −0.314 × year + 639.58 (r = 0.910, p<0.001). B) The linear decrease of the standardized mortality data (the mortality normalized according to the age distribution of the population) with the year can be described with this formula: mortality (×1/100) = −0.383 × year +776.59 (r = 0.944, p<0.001). r, Pearson correlation coefficient. p<0.05 is considered statistically significant.

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