Epidemiology of Colorectal Cancer in Isfahan Province

SeyedMohammadHosein Emami, AliMohammad Fatemi, Ziba Farajzadegan, SeyedMehdi Movahed-Abtahi


Background: The aim of this study was to assess epidemiology of colorectal cancer (CRC) in Isfahan, Iran.

Materials and Methods: Data were gathered from hospital documents of hospital admissions for colonoscopy, surgery, chemotherapy or radiotherapy due to colorectal cancer during 1996-2003.

Results: 1100 cases with colorectal cancer in seven years were detected and reviewed. Our minimum incidence rate estimation was 1.3 per 100,000 in 1996, 3.7 /100,000 in 2001 and 3.1 / 100,000 in 2003. One third of CRC cases were diagnosed between thirties to fifties in both genders in our province with a peak incidence in the fifties for females and in the sixties for males. CRC in more than 85% of the patients was left sided. The one, five and seven year's survival rates were 97%, 43% and 21% respectively. A significant lower survival rate was seen in right colon in oppose to the left colon (13% vs. 40%) (p‹0.05) after five years of follow up.

Conclusions: Incidence of CRC in Isfahan Proviene is increasing. Rectum is the most common site (61.6%) for CRC. Many of Iranians who have CRC are young Regarding to fact program, Screening is recommended earlier than Western countries.


Colorectal cancer; Colonoscopy; Sigmoidoscopy; Incidence; Prevalence; Isfahan.

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