Pattern and distribution of colonic diverticulosis: Analysis of 2877 barium enemas in Thailand

Table 1 Percentage and distribution of colonic diverticulosis by location (from total number of 2877 double contrast barium enemas studied)

Location	No. of cases	Percentage of total 820 colonic diverticulosis	Percentage of total 2877 DCBEs studied (95%CI)
Right-sided only1	383	46.7	13.3 (12.1-14.6)
Left-sided only	153	18.7	5.3 (4.6-6.2)
Transverse only	10	1.2	0.3 (0.2-0.6)
Extended right-sided (right + transverse)	44	5.4	1.5 (1.1-2.0)
Extended left-sided (left + transverse)	16	2.0	0.6 (0.3-0.9)
Bilateral (right + left)	116	14.1	4.0 (3.4-4.8)
Pancolonic (right + transverse + left)	98	12.0	3.4 (2.8-4.1)
Total	820	100	28.5 (26.9-30.2)
Right colonic diverticulosis	641	78.2	22.3 (20.8-23.8)
Left colonic diverticulosis	383	46.7	13.3 (12.1-14.6)
Transverse colonic diverticulosis	168	20.5	5.8 (5.0-6.8)

¹Right-sided only diverticulosis included 42 cases of solitary cecal diverticulum. DCBE: Double contrast barium enema.