EEN can improve nutritional status and promote intestinal function recovery for patients undergoing CRC surgery.

Background: The burden of head and neck cancer in China is heavier, and studies have shown that it may be associated with HPV infection, especially high-risk HPV.Objectives: We aimed to conduct a meta-analysis to estimate the high-risk HPV-16 prevalence of head and neck cancer in the Chinese population.Methods: The reports on HPV and head and neck cancer in a Chinese population published between Jan 1, 2006 and Oct 23, 2018 were retrieved via WANFANG/CNKI/MEDLINE/EMBASE databases. The pooled prevalence and corresponding 95% confidence intervals was calculated by a random-effect model.Results: The meta-analysis included a total of 2,896 head and neck cancer cases from 28 studies. Overall, the pooled HPV-16 prevalence among head and neck cancer cases was 24.7% (20.2–29.3%) in China, 31.6% (21.7–41.5%) in oropharyngeal cancer, 28.5% (18.2–38.7%) in laryngeal cancer and 14.9% (10.1–19.7%) in oral cancer, 25.3% (14.8–35.8%) in fresh or frozen biopsies and 25.0% (19.5–30.5%) in paraffin-embedded fixed biopsies, 36.5% (17.9–55.1%) by E6/E7 region and 14.3% (6.4–22.1%) by L1 region of HPV gene. The highest HPV-16 prevalence was found in Central China.Conclusions: High prevalence of HPV-16 was found in the samples of Chinese head and neck cancers. Preventive HPV-vaccination may reduce the burden of HPV-related head and neck cancer in China.

Background: China has a high burden of head and neck cancer globally and oncogenic human papillomavirus (HPV) has been hypothesized as a risk factor for head and neck cancer, but research was absent for establishing HPV prevalence in China. We aimed to conduct a meta-analysis to estimate the high-risk HPV-18 prevalence of head and neck cancer in the Chinese population. Methods: This meta-analysis was reported following the guideline of PRISMA. The reports on HPV and head and neck cancer in a Chinese population published between Jan 1, 2006 and May 31, 2018 were retrieved via CNKI/WANFANG/MEDLINE/EMBASE/COCHRANE databases. A random-effect model was used to calculate pooled prevalence and corresponding 95% confidence intervals. Results: A total of 1881 head and neck cancer cases from 19 studies were included in this meta-analysis. Overall, the pooled HPV-18 prevalence among head and neck cancer cases was 6.0% (4.1%–7.9%) in China, 31.2% (13.0%–49.4%) in laryngeal cancer, 7.2% (3.9%–10.5%) in oral cancer and 0.6% (0.0%–1.3%) in oropharyngeal cancer, 18.7% (6.2%–31.2%) in fresh or frozen biopsies and 4.3% (2.5%–6.1%) in paraffin-embedded fixed biopsies, 29.5% (15.6%–43.3%) by E6/E7 region and 3.9% (0.5%–7.4%) by L1 region of HPV gene. The highest HPV-18 prevalence was found in Central China. Conclusions: High prevalence of HPV-18 was found in the samples of Chinese head and neck cancers. Prophylactic HPV-vaccination may reduce the burden of HPV-related head and neck cancer in China.