To the Editor.—

In my study using the National Inpatient Sample (NIS) database to calculate the incidence of Kawasaki disease (KD) in the United States between 1988 and 1997, I did not use the recommended weighting technique to account for the differences in stratified sampling across different years. As a result, miscalculated KD incidences were presented in Fig 2 of the article, and an erroneous conclusion was made that KD incidence was rising over the study period. Dr Holman and colleagues used the same NIS data and repeated the calculations using weighting techniques. The results from Holman et al did not show a clear trend of increasing KD incidence between 1988 and 1997. Because of the concern that future researchers conducting a literature search may not be able to cross-link between my article and Dr Holman’s, I feel I must emphasize once more that a mistake...

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