Incidence and age distribution of colorectal cancer in Iran: Results of a population-based cancer registry

Ansari, Reza; Mahdavinia, Mahboobeh; Sadjadi, Alireza; Nouraie, Mehdi; Kamangar, Farin; Bishehsari, Faraz; Fakheri, Hafez; Semnani, Shahryar; Arshi, Shahnam; Zahedi, M J; Darvish-Moghadam, Sodeif; Ghanaei, F Mansour; Mosavi, Amir; Malekzadeh, Reza

doi:10.1016/j.canlet.2005.09.004

Cited by 118 publications

(111 citation statements)

References 14 publications

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“…Proportions of under forty and fifty years old patients in current study were close to other studies in Iran (Ansari et al, 2006;Safaee et al, 2012), but were in contrast with the studies performed in high risk countries. A study on CRC in USA showed 50% the patients were older than 70 and 24.3% were older than 80 (Stewart et al, 2006).…”

Section: Discussionsupporting

confidence: 83%

Clinicopathological Features of Colon Adenocarcinoma in Qazvin, Iran: A 16 Year Study

Hajmanoochehri

Asefzadeh²,

Kazemifar³

et al. 2014

Asian Pacific Journal of Cancer Prevention

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Section: Discussionsupporting

confidence: 83%

Clinicopathological Features of Colon Adenocarcinoma in Qazvin, Iran: A 16 Year Study

Hajmanoochehri

Asefzadeh²,

Kazemifar³

et al. 2014

Asian Pacific Journal of Cancer Prevention

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“…Colonic and extracolonic malignancies: CRC was the most common cancer among HNPCC families by nearly 36%, compatible with other studies in Iran (Ansari et al, 2006;Fatemi et al, 2010;Dolatkhah et al, 2015), but it is much less than another recent study (Nemati et al, 2011). Meanwhile, there are significant discrepancies, 33-78%, between similar studies in other countries (Park et al, 2000;Maul et al, 2006;da Silva et al, 2010;Bansidhar, 2012).…”

Section: 4647 Epidemioclinical Features Of Early-onset Colorectal Casupporting

confidence: 86%

“…Accordingly, the frequency rate of FCC among the early-onset probands in our study was calculated 24.2%, most of which fulfilled the Amsterdam II Criteria and were reproduced as HNPCC families (20.5%). It is more than previous studies in the Province and other parts of Iran (Yuen et al, 2002;Ansari et al, 2006;Fatemi et al, 2010;Nemati et al, 2011;Dolatkhah et al, 2015). Since the proportion of early-onset probands to all CRC patients has been calculated nearly 25%, the total frequency of HNPCC families according to Amsterdam II Criteria is estimated 0.25×20.5% = 5.1%.…”

Section: 4647 Epidemioclinical Features Of Early-onset Colorectal Camentioning

confidence: 83%

“…This study among other Eastern studies has shown that Early-onset CRC (less than 50 years of age at diagnosis) covers almost one fourth of all CRC cases in the country. This is different from Western countries where the rates of early-onset CRC include less than 10% of all CRC cases (Griffin et al, 1991;Mitry et al, 2001;Yuen et al, 2002;Claes et al, 2005;Yazdizadeh et al, 2005;Ansari et al, 2006;Dolatkhah et al, 2015). Given the changing of life style in developing societies like Iran toward westernization, in particular within youth, incident rate of early-onset CRC has been increased in these populations during the recent decades (Fatemi et al, 2010;Safari et al, 2013;Dolatkhah et al, 2015).…”

Section: 4647 Epidemioclinical Features Of Early-onset Colorectal Camentioning

confidence: 99%

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Epidemioclinical Feature of Early-Onset Colorectal Cancer at-Risk for Lynch Syndrome in Central Iran

Zeinalian

Chaleshtori²,

Akbarpour³

2015

Asian Pacific Journal of Cancer Prevention

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“…CRC is considered the third cause of cancerrelated death in the world (Gupta et al, 2011;Siegel et al, 2012;Baghestani et al, 2014). Following breast cancer, it is the second most common cancer among women and is also the third most common cancer among men (Ansari et al, 2006;Ferlay et al, 2010;Siegel et al, 2012). Previous studies have illustrated variation in CRC incidence rates across countries.…”

Section: Introductionmentioning

confidence: 99%

Prevalence of Colorectal Polyps in a Group of Subjects at Average-risk of Colorectal Cancer Undergoing Colonoscopic Screening in Tehran, Iran between 2008 and 2013

Sohrabi¹,

Zamani²,

Ajdarkosh³

et al. 2014

Asian Pacific Journal of Cancer Prevention

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Background: Colorectal cancer (CRC) is one of the prime causes of mortality around the globe, with a significantly rising incidence in the Middle East region in recent decades. Since detection of CRC in the early stages is an important issue, and also since to date there are no comprehensive epidemiologic studies depicting the Middle East region with special attention to the average risk group, further investigation is of significant necessity in this regard. Aim: Our aim was to investigate the prevalence of preneoplastic and neoplastic lesions of the colon in an average risk population. Materials and Methods: A total of 1,208 eligible asymptomatic, average-risk adults older than 40 years of age, referred to Firuzgar Hospotal in the years 2008-2012, were enrolled. They underwent colonoscopy screening and all polypoid lesions were removed and examined by an expert gastrointestinal pathologist. The lesions were classified by size, location, numbers and pathologic findings. Size of lesions was measured objectively by endoscopists. Results: The mean age of participants was 56.5 ± 9.59 and 51.6% were male. The overall polyp detection rate was 199/1208 (16.5 %), 26 subjects having non-neoplastic polyps, including hyperplastic lesions, and 173/1208 (14.3%) having neoplastic polyps, of which 26 (2.15%) were advanced neoplasms .The prevalence of colorectal neoplasia was more common among the 50-59 age group. Advanced adenoma was more frequent among the 60-69 age group. The majority of adenomas were detected in the distal colon, but a quarter of advanced adenomas were found in the proximal colon; advance age and male gender was associated with the presence of adenoma. Conclusions: It seems that CRC screening among average-risk population might be recommended in countries such as Iran. However, sigmioidoscopy alone would miss many colorectal adenomas. Furthermore, the 50-59 age group could be considered as an appropriate target population for this purpose in Iran.

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Incidence and age distribution of colorectal cancer in Iran: Results of a population-based cancer registry

Cited by 118 publications

References 14 publications

Clinicopathological Features of Colon Adenocarcinoma in Qazvin, Iran: A 16 Year Study

Clinicopathological Features of Colon Adenocarcinoma in Qazvin, Iran: A 16 Year Study

Epidemioclinical Feature of Early-Onset Colorectal Cancer at-Risk for Lynch Syndrome in Central Iran

Prevalence of Colorectal Polyps in a Group of Subjects at Average-risk of Colorectal Cancer Undergoing Colonoscopic Screening in Tehran, Iran between 2008 and 2013

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