Temporal and geographical variations in colorectal cancer incidence in Northern Iran 2004-2013.

Introduction: Colorectal cancer (CRC) is one of the most common cancers in the Golestan province, Northern Iran. The purpose of this study is to describe colorectal cancer incidence patterns and trends in the province 2004-2013.

Methods: Data on CRC cases were obtained from the Golestan Population-based Cancer Registry (GPCR).