Biostatistics and epidemiology models in gastrointestinal cancers

Gastrointestinal (GI) cancers are one of the most commonly diagnosed cancers worldwide, particularly a major problem in Asian countries. Researchers believe that statistical and epidemiological methods can lead us to know well about the GI cancers pattern and then to develop improved treatment. The other thing is that epidemiology and biostatistics did undergo a rapid development in the past years. They are playing an important role in the application of statistical methods, and will continue in the future biomedical researches (1).