Erratum to: colorectal cancer in a region of western of Algeria: results of 581 cases in 5 years.

[This corrects the article DOI: 10.1111/agc.123.].

Colorectal cancer in a region of western of Algeria: results of 581 cases in 5 years.

Aims: The objective of this work is to evaluate the epidemiological profile of colorectal cancers, histologically proven over a 5-year period (2012-2016) in the Tlemcen region. Methods: A retrospective study of 581 cases of colorectal cancer collected at the epidemiology department of the University Hospital Center (UHC) of Tlemcen between January 2012 and December 2016 was performed. Epidemiological data were processed using SPSS version 25 and Microsoft Excel 2010. Results: The epidemiological profile has shown that colorectal cancer in our region ranks 3rd in both sexes. There were 322 men (55.4%) affected compared to 259 women (44.6%) with a sex ratio of 1.2. A predominance of males is noted in 50-60 age group, while for the female sex, the dominance is between 60-70 years old. The mean age of CRC occurrence was 60±13 years, with an extremity ranging from16 to 90. A significantly higher rate was recorded for rectal cancer (43.7%) followed by sigmoid colon (5.7%). Variable rates were recorded during the 5 years with a peak in 2014 (27.9%). Conclusion: Regular analysis of these data, if supplemented with additional data on diagnostic modalities like circular RNA diagnostic, will contribute to the assessment of the impact over time of public policies on nationally organized CRC screening.

Retrospective epidemiological study on stomach cancer in a region of western Algeria: about 394 cases between 2011 and 2015.

PURPOSE: Stomach cancer is a major global health problem; it is one of the ten most common cancers with poor survival, and its incidence is characterized by wide variation. The aim of this work is to carry out a retrospective epidemiological study on gastric cancer in the wilaya of Tlemcen (West Algeria) over a period of 5 years (2011-2015). METHODS: The data set was provided by the cancer registry of the Tlemcen wilaya. The statistical analysis was performed using software SPSS.21. RESULTS: During this period, 394 cases of gastric cancers were collected, including 199 patients with gastric adenocarcinoma (50.50%); gastric cancer was ranked in 5th rank of the ten most answered cancers in the wilaya. The average age of the patients was 60.5 ±  14.208 years (60.618 ±  13.556 men, 56.654 ±  14.8761 women) with an extremity ranging from 18 to 91 years. A predominance of men has been observed with 60.4% against 39.6% of women, with a sex ratio of 1.5 and a significant difference between the two sexes (p = 0.08). Patients over 50 years of age represented the predominant age group (73.4%). The tumor topography was antropyloric in 6.09% of the cases, and the vast majority of the diagnosed cases was in the local stage (17.01%). CONCLUSION: Stomach cancer remains one of the top ten cancers in the Tlemcen willaya, so extensive research on the risk factors for gastric cancer remains important to plan effective preventive and curative strategies to reduce this burden.