The cumulative q interval curve as a starting point in disease cluster investigation.

@article{Chen1999TheCQ,
  title={The cumulative q interval curve as a starting point in disease cluster investigation.},
  author={Rongshang Chen},
  journal={Statistics in medicine},
  year={1999},
  volume={18 23},
  pages={3299-307}
}
Statistical analyses aimed at detection and investigation of clustering are associated with inherent difficulties. Both types of statistical errors are large in these analyses. The results of the analyses should indicate whether or not at least some of the cases are clustered, and if they are, whether or not the cluster is related to an exposure. The temporal changes in the incidence rate of the disease may alleviate the difficulties associated with the large statistical errors. Because of the… CONTINUE READING

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