结直肠癌平均风险人群结肠镜检查息肉检出数与息肉检出率的相关性

Correlation between number of polyps detected per colonoscopy and polyp detection rate in average risk Chinese population of colorectal cancer

目的:探讨结直肠癌平均风险人群结肠镜检查中的息肉检出率与平均息肉检出数间的相关性,为结肠镜质控提供补充信息.方法:采用回顾性分析,利用2010-03/2013-02于上海长海医院消化内镜中心进行"体检肠镜"检查的患者资料,按照不同性别、年龄组、检查医师分别计算息肉检出率和平均息肉检出数,并对两者进行线性回归分析.结果:共有1928例"体检肠镜"检查纳入研究.不同性别样本按年龄分组的息肉检出率和平均息肉检出数均存在显著线性相关性(男:r=0.96,P=0.0092;女:r=0.97,P=0.0059).按不同医师计算息肉检出率和平均息肉检出数,相关分析显示两者间存在显著相关性(r=0.88,P<0.05).结论:结直肠癌平均风险人群中息肉检出率和平均息肉检出数之间存在显著相关性,平均息肉检出数可以作为息肉检出率的补充指标与其一同作为病理资料不完善时进行结肠镜质量控制的重要指标.

AIM：To assess the association between the number of polyps detected per colonoscopy（PPC） and polyp detection rate（PDR）.METHODS：A retrospective analysis was performed of the data for patients who underwent screening colonoscopy in the Digestive Endoscopic Center of Changhai Hospital between March 2010 and February 2013.PDR and PPC were calculated by gender,age and endoscopist.Linear regression analysis was applied to study the relationship between PDR and PPC.RESULTS：A total of 1928 subjects received complete colonoscopies.There were significant linear correlations between PDR and PPC by age in both genders（men：r = 0.96,P = 0.0092;women：r = 0.97,P = 0.0059）.There was also a significant linear correlation by endoscopist（r= 0.88,P 〈 0.05）.CONCLUSION：There is a significant correlation between PDR and PPC.PPC can act as a supplementary index to help distinguish endoscopists who have diiferent colonoscopy skills.