The association between dietary protein intake and colorectal cancer risk: a meta-analysis
Abstract Background Association between dietary protein intake and colorectal cancer risk has not been fully quantified, while the results were controversial. This study aimed to evaluate the role of protein intake in the development of colorectal cancer. Methods PUBMED and EMBASE were searched up t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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BMC
2017-09-01
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| Series: | World Journal of Surgical Oncology |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s12957-017-1241-1 |
| _version_ | 1818191085077266432 |
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| author | Renxu Lai Zhuang Bian Hong Lin Jiangnan Ren Huaili Zhou Huixue Guo |
| author_facet | Renxu Lai Zhuang Bian Hong Lin Jiangnan Ren Huaili Zhou Huixue Guo |
| author_sort | Renxu Lai |
| collection | DOAJ |
| description | Abstract Background Association between dietary protein intake and colorectal cancer risk has not been fully quantified, while the results were controversial. This study aimed to evaluate the role of protein intake in the development of colorectal cancer. Methods PUBMED and EMBASE were searched up to December 2016. Two independent reviewers independently extracted data from eligible studies. Relative risk (RR) with 95% confidence intervals (CI) was pooled using random-effects model to estimate the result. Besides, publication bias and sensitivity analysis were conducted. Results Thirteen articles involving 21 studies comprising 8187 cases were included in this report. The pooled RR of colorectal cancer was 1.006 (95% CI = 0.857–1.179) indicating that there is no significant association between dietary protein intake and colorectal cancer risk. Furthermore, the pooled RRs for colon cancer and rectum cancer were 1.135(95% CI = 0.871–1.480) and 0.773(95% CI = 0.538–1.111), respectively, with the highest category of dietary protein intake. The association was not significant either in subgroup analysis of study design, protein type (animal protein or vegetable protein), sex, and or geographic locations. Conclusions The present study indicated that the highest category compared to the lowest category of protein intake had no significant association on colorectal cancer risk. Dose-response analysis was not conducted due to limited information provided. Therefore, more studies with large cases and participants as well as detailed amounts of dietary protein intake are wanted to confirm this result. |
| first_indexed | 2024-12-12T00:09:00Z |
| format | Article |
| id | doaj.art-0d28215f6cbc4adf903fcc79748a5703 |
| institution | Directory Open Access Journal |
| issn | 1477-7819 |
| language | English |
| last_indexed | 2024-12-12T00:09:00Z |
| publishDate | 2017-09-01 |
| publisher | BMC |
| record_format | Article |
| series | World Journal of Surgical Oncology |
| spelling | doaj.art-0d28215f6cbc4adf903fcc79748a57032022-12-22T00:45:02ZengBMCWorld Journal of Surgical Oncology1477-78192017-09-011511910.1186/s12957-017-1241-1The association between dietary protein intake and colorectal cancer risk: a meta-analysisRenxu Lai0Zhuang Bian1Hong Lin2Jiangnan Ren3Huaili Zhou4Huixue Guo5Department of Gastroenterology, The Fifth Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastroenterology, The Fifth Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastroenterology, The Fifth Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastroenterology, The Fifth Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastroenterology, The Fifth Affiliated Hospital of Sun Yat-sen UniversityDepartment of Gastroenterology, The Fifth Affiliated Hospital of Sun Yat-sen UniversityAbstract Background Association between dietary protein intake and colorectal cancer risk has not been fully quantified, while the results were controversial. This study aimed to evaluate the role of protein intake in the development of colorectal cancer. Methods PUBMED and EMBASE were searched up to December 2016. Two independent reviewers independently extracted data from eligible studies. Relative risk (RR) with 95% confidence intervals (CI) was pooled using random-effects model to estimate the result. Besides, publication bias and sensitivity analysis were conducted. Results Thirteen articles involving 21 studies comprising 8187 cases were included in this report. The pooled RR of colorectal cancer was 1.006 (95% CI = 0.857–1.179) indicating that there is no significant association between dietary protein intake and colorectal cancer risk. Furthermore, the pooled RRs for colon cancer and rectum cancer were 1.135(95% CI = 0.871–1.480) and 0.773(95% CI = 0.538–1.111), respectively, with the highest category of dietary protein intake. The association was not significant either in subgroup analysis of study design, protein type (animal protein or vegetable protein), sex, and or geographic locations. Conclusions The present study indicated that the highest category compared to the lowest category of protein intake had no significant association on colorectal cancer risk. Dose-response analysis was not conducted due to limited information provided. Therefore, more studies with large cases and participants as well as detailed amounts of dietary protein intake are wanted to confirm this result.http://link.springer.com/article/10.1186/s12957-017-1241-1Protein intakeColorectal cancerMeta-analysisRelative risk |
| spellingShingle | Renxu Lai Zhuang Bian Hong Lin Jiangnan Ren Huaili Zhou Huixue Guo The association between dietary protein intake and colorectal cancer risk: a meta-analysis World Journal of Surgical Oncology Protein intake Colorectal cancer Meta-analysis Relative risk |
| title | The association between dietary protein intake and colorectal cancer risk: a meta-analysis |
| title_full | The association between dietary protein intake and colorectal cancer risk: a meta-analysis |
| title_fullStr | The association between dietary protein intake and colorectal cancer risk: a meta-analysis |
| title_full_unstemmed | The association between dietary protein intake and colorectal cancer risk: a meta-analysis |
| title_short | The association between dietary protein intake and colorectal cancer risk: a meta-analysis |
| title_sort | association between dietary protein intake and colorectal cancer risk a meta analysis |
| topic | Protein intake Colorectal cancer Meta-analysis Relative risk |
| url | http://link.springer.com/article/10.1186/s12957-017-1241-1 |
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