Association between colonic polyps and diverticular disease

Table 1 Number of patients with diverticular disease and colonic polyps by colon segment n (%)

Colon segment	Patients with diverticular disease (%)	Patients with polyps (%)
Distal colon	20 (3.0)	89 (13.2)
Proximal colon	98 (14.6)	53 (7.9)
Bilateral colon	47 (7.0)	47 (7.0)
Total	165 (24.5)	189 (28.1)

Table 2 Comparison of demographic features between patients with or without diverticular disease

	Patients with diverticular disease	Patients without diverticular disease
No. of patients	165	508
Mean age (SD)	58.0 (13.6)b	47.3 (14.7)
Sex (female: male)	52:113d	219:289
No. of patients with polyps (%)	71 (43.0)d	118 (23.2)

^bP < 0.01 vs without diverticular disease using the t test;

^dP < 0.01 vs without diverticular disease using the chi-square analysis.

Table 3 Association between colonic polyps and diverticular disease adjusted for age and sex by logistic regression analysis

Segment with diverticular disease	No. of patients with polyps /No. of patients with diverticular disease (%)	OR	95% CI	P values
Distal colon	11/20 (55.0)	2.3	0.9-5.8	0.09
Proximal colon	41/98 (41.8)	1.9	1.2-3.0	0.01
Bilateral colon	19/47 (40.4)	1.2	0.6-2.3	0.60
Total	71/165 (43.0)	1.7	1.1-2.5	0.01