Research Article

Prevalence and Risk Factors of Asymptomatic Colorectal Polyps in Taiwan

Table 1

Demographics and endoscopic findings of asymptomatic health check-up subjects ( ).

Clinical characteristics

Age, (%)
 Mean (SD) yr. 52.8 (10.6)
 <45 yr.393 (20.7)
 45–60 yr.1038 (54.7)
 >60 yr.468 (24.6)
Height, cm165.8 (8.2)
Weight, kg66.2 (12.3)
Gender, (%)
 Men1203 (63.3)
 Women696 (36.7)
Body mass index, (%)
 Mean (SD)23.9 (3.4)
 <251233 (64.9)
 25–30573 (30.2)
 >3093 (4.9)
Educational level, (%)
 Middle school144 (7.6)
 High school799 (42.1)
 University641 (33.7)
 Graduate school315 (16.6)
Yearly salary (US dollar), (%)
 Less than 10,000182 (9.6)
 From 10,000 to 30,000984 (51.8)
 More than 30,000733 (38.6)
Colonoscopic findings, (%)
 Normal1379 (72.6)
 Colorectal polyps520 (27.4)
  Pathological type
   Hyperplastic polyps210 (11.1)
   Adenomatous polyps305 (16.1)
   Sessile serrated adenoma34 (1.8)
   Traditional serrated adenoma14 (0.7)
 Location
  Proximal colon only 99 (5.2)
  Distal colon only343 (18.1)
  Both78 (4.1)