The Demographic and Clinical Characteristics of Ulcerative Colitis in a Northeast Brazilian Population

Table 1

Demographic characteristics of patients with ulcerative colitis in two reference centers in Salvador, Bahia, Brazil ().

Variables	(%)
Gender
Male	87 (32.6)
Female	180 (67.4)
Skin color
Blacks	69 (26.5)
Mixed-race	147 (56.5)
Whites	42 (16.2)
Yellows	—
Indigenous	2 (0.8)
Origin
Urban areas	234 (87.6)
Rural areas	33 (12.4)
Age at diagnosis (in years)
Average	39.4; SD = 13.5
Range	11–78
Interval between symptom onset and diagnosis (in months)
Average	20.36; SD = 31.3
Range	0–180
Mean disease duration (in years)
Average	7.56; SD = 6.3
Range	0–34
Smoking
Active	8 (3.0)
Former	92 (34.5)
No	167 (62.5)
Family history of IBD
Yes	21 (7.9)
No	245 (92.1)

SD = standard deviation. IBD = inflammatory bowel disease.