Statistical Analysis of Case-Control Data of Endometrial Cancer Based on New Asymmetry ModelsKouji Yamamoto1* and Sadao Tomizawa2
- *Corresponding Author:
- Kouji Yamamoto
Center for Clinical Investigation andResearch
Osaka University Hospital, 2-15
Yamadaoka, Suita, Osaka, 565-0871, Japan
E-mail: [email protected]rc.med.osaka-u.ac.jp
Received date: May 07, 2012; Accepted date: June 19, 2012; Published date: June 21, 2012
Citation: Yamamoto K, Tomizawa S (2012) Statistical Analysis of Case-Control Data of Endometrial Cancer Based on New Asymmetry Models. J Biomet Biostat 3:147. doi:10.4172/2155-6180.1000147
Copyright: © 2012 Yamamoto K, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Background: For the data from the Los Angeles study in Breslow and Day of endometrial cancer and obtained from the 59 matched pairs using four dose levels of conjugated oestrogen, this study proposes new statistical models and gives an easy interpretation, as an approach to assess the data more properly. Methods: Proposing new statistical models for analyzing the endometrial cancer data, we apply them to the data, compare and assess the models considered here. Results: We have found a more preferable model which fits the data better than some existing models. Under the preferable model, we have seen that the average dose of oestrogen for case in a matched pair tends to be more than that for control in the pair. Conclusions: We have proposed two kinds of statistical models and made a conclusion that average dose for case tends to be more than that for control.