Prevalence and clinical features of colonic diverticulosis in a Middle Eastern population

Table 1 Comorbidities of patients and indications for a colonoscopy for the complete cohort of patients

Variable	Percentage	95%CI
Comorbidities
Hypertension	63.88%	52.52-75.25
Diabetes	44.44%	32.68-56.20
Dyslipidemia	22.22%	12.38-32.06
Aspirin	10.07%	8.35-11.82
Chronic kidney disease	5.55%	0.10-11.00
Coronary artery disease	4.16%	0.10-9.00
Indication for colonoscopy
Bleeding per rectum	22.94%	21.50-24.38
Abdominal pain	19.30%	17.94-20.64
Surveillance	16.29%	15.03-17.55
Constipation	9.57%	8.57-10.58
Diarrhea	8.75%	7.79-9.72
Screening	7.57%	6.67-8.48
Weight loss	5.50%	4.72-6.28
Anemia	5.02%	4.27-5.76
Melena	3.13%	2.54-3.73
Anal pain	1.91%	1.45-2.38
Altered bowel habits	1.76%	1.31-2.21
Perianal fistula	1.19%	0.82-1.55
Positive for occult blood	0.52%	0.27-0.76

Table 2 Comorbidities of patients and indications for a colonoscopy stratified by the presence and absence of diverticulosis as well as the univariable analysis between the presence of diverticulosis and the corresponding variables

Variable	Diverticulosis	No diverticulosis	P-value	Univariable analysis
				OR	95%CI
Comorbidities
Hypertension	63.88%	25.92%	< 0.01	5.05	3.06-8.34
Diabetes	44.44%	24.32%	< 0.01	2.49	1.53-4.05
Dyslipidemia	22.22%	10.77%	0.03	2.37	1.31-4.27
Aspirin	21.33%	9.23%	0.01	2.67	1.48-4.81
Chronic kidney disease	5.56%	3.12%	0.38	2.91	0.82-10.29
Coronary artery disease	4.16%	1.43%	0.27	1.82	0.62-5.30
Indication for colonoscopy
Bleeding per rectum	33.60%	22.08%	< 0.01	1.79	1.35-2.35
Abdominal pain	19.30%	15.20%	0.06	0.73	0.51-1.05
Constipation	12.80%	9.31%	0.11	1.43	0.96-2.11
Surveillance	10.40%	16.72%	< 0.01	0.58	0.38-0.87
Screening	6.40%	7.67%	0.43	0.82	0.49-1.39
Anemia	6.00%	4.94%	0.5	1.23	0.71-2.12
Melena	3.13%	4.40%	0.31	1.47	0.78-2.79
Diarrhea	2.40%	9.28%	< 0.01	0.24	0.11-0.55
Altered bowel habits	2.00%	1.74%	0.78	1.15	0.46-2.90
Weight loss	2.00%	5.79%	< 0.01	0.33	0.14-0.82
Anal pain	1.20%	1.97%	0.29	0.6	0.19-1.94
Positive for occult blood	1.20%	0.46%	0.29	2.62	0.75-9.19
Perianal fistula	0.40%	1.25%	0.06	0.32	0.04-2.32

Table 3 Variables associated with the presence of diverticulosis on multivariable analysis

Variable	Multivariable analysis
	OR	95%CI
Age	1.05	1.03-1.07
Hypertension	2.30	1.29-4.10
Bleeding per rectum	2.57	1.50-4.38
Internal hemorrhoids	1.96	1.06-3.65

Table 4 Factors associated with of bleeding per rectum in those with diverticulosis on univariable analysis, none of the variables were associated with bleeding per rectum on multivariable analysis

Variable	OR	95%CI
Age	1.00	0.97-1.02
Hypertension	0.73	0.27-1.95
Diabetes	1.27	0.48-3.32
Dyslipidemia	1.00	0.32-3.15
Atrial fibrillation	0.44	0.05-3.50
Abdominal Pain	0.19	0.07-0.57
Constipation	0.75	0.33-1.70
Diarrhea	0.39	0.04-3.38
Internal hemorrhoids	2.61	1.48-4.61
Polyps	1.28	0.72-2.29

Table 5 Findings on colonoscopy and possible etiologies for patients referred for bleeding per rectum

Etiology	Percentage	95%CI
Internal hemorrhoids	44.66%	40.36-48.96
Diverticulosis	33.60%	27.73-39.47
Mass	31.45%	26.03-36.87
Polyps	24.76%	21.37-28.15
Colitis	18.97%	14.44-23.49