Secular trends, 2003–2011 From 2003 to 2011, the overall annual incidence of appendicitis in the LIP did not reveal a clear trend, and mostly assumed a wavy shape from year to year.
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Epidemiology of appendicitis and appendectomy for the low-income population in Taiwan, 2003-2011.
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The sentences
The incidences of incidental appendectomy showed a decreasing trend in both the LIP and NP.