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Reevaluation of a rightward shift in colorectal cancer: A single‐center retrospective study in Tianjin
Author(s) -
Wu Jing Yi,
Chen Dan Feng,
Liu Tian Yu,
Dong Wen Xiao,
Liu Xiang,
Wang Si Nan,
Xie Run Xiang,
Liu Wen Tian,
Wang Bang Mao,
Cao Hai Long
Publication year - 2019
Publication title -
journal of digestive diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.684
H-Index - 51
eISSN - 1751-2980
pISSN - 1751-2972
DOI - 10.1111/1751-2980.12812
Subject(s) - medicine , single center , colorectal cancer , retrospective cohort study , center (category theory) , cancer , oncology , chemistry , crystallography
Objectives Some Western reports have shown a proximal shift in colorectal cancer (CRC), but there are few studies in China. This study aimed to provide more information for the management and screening of CRC by investigating trends in the anatomic distribution of CRC among the Chinese population in recent years. Methods A retrospective study was conducted on patients with CRC admitted to the Digestive Endoscopy Center of Tianjin Medical University General Hospital between January 2000 and December 2017. Patients were divided into a left‐sided colorectal cancer (LSCRC) group and a right‐sided colon cancer (RSCC) group. The detection rates of LSCRC and RSCC based on patients' age and sex, and on the time periods were analyzed. Results A total of 2319 cases were diagnosed with CRC among 75 183 consecutive patients. The prevalence of CRC showed a significant reduction from 2000‐2008 to 2009‐2017 (3.8% vs 2.7%, P < .001). The proportion of RSCC presented a downtrend from 2000‐2008 to 2009‐2017 (40.6% vs 37.7%, P > .05). There were slightly more RSCCs in female patients than in male patients, with no significant difference (40.9% vs 36.5%, P > .05). The proportion of RSCC in patients aged ≥50 years was similar to that in younger patients. The alarming symptoms between LSCRC and RSCC showed a significant difference ( P < .05). Conclusions In the present study, the prevalence of CRC declined significantly with time. However, there did not appear to be a rightward shift in CRC among the patients in Tianjin over the past 18 years.