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KMID : 1161920180150020084
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Journal of Medicine and Life Science
2018 Volume.15 No. 2 p.84 ~ p.88
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Comparison of age-standardized incidence rates by places and times: Reported cases of scrub typhus in Jejudo, 2011~2016
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Kim Jin-Hee
Kim Eun-Hee
Bae Jong-Myon
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Abstract
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The aim was to evaluate different results from using crude incidence rate (CIR) instead of agestandardized incidence rate (AIR) when comparing groups having different age structures. After selecting a report using CIRs, AIRs and their 95% confidence intervals(CI) was calculated from the raw data. The statistically significant difference between CIR and AIR was decided based on AIR’s 95% CI. Comparing with CIRs, AIRs were under-estimated. In addition, there were no statistical significance of annual trends(P=0.59). These findings are an additional evidence using AIR when comparing level of occurring infectious diseases on groups with different age structures.
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KEYWORD
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Scrub typhus, Rickettsia, Ecology, Hot temperature
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