Table 4.

Comparison of Adenoma Characteristics at Referral Based on Race or Ethnicity

	Caucasian (n=5041)	Asian (n=151)	African American (n=382)	Other (n=595)	P value
	n (%) 95% CI	n (%) 95% CI	n (%) 95% CI	n (%) 95% CI
Age at adenoma diagnosis mean± SE, 95% CI	45.4±.2	43.5±1.1	43.9±.7	42.9±.6	<0.0001
	45–45.8	41.2–45.7	42.5–45.2	41.8–44
0 adenomas	762 (15.1%)	20 (13.3%)	42 (11%)	109 (18.3%)	0.0168
	14.1–16.1	8.3–19.7	8–14.6	15.3–21.7
≤10 adenomas	732 (14.5%)	23 (15.2%)	42 (11%)	74 (12.4%)	0.15
	13.6–15.5	9.9–22	8–14.6	9.9–15.4
11–19 adenomas	607 (12%)	11 (7.3%)	54 (14.1%)	54 (9.1%)	0.02
	11.2–13	3.7–12.7	10.8–18	6.9–11.7
20–99 adenomas	2064 (40.9%)	57 (37.8%)	140 (36.7%)	216 (36.3%)	0.06
	39.6–42.3	30–46	31.8–41.7	32.4–40.3
100–999 adenomas	805 (16%)	33 (21.9%)	95 (24.9%)	133 (22.4%)	<0.0001
	15–17	15.6–29.3	20.6–29.5	19–25.9
≥1000 adenomas	71 (1.4%)	7 (4.6%)	9 (2.4%	9 (1.5%)	0.0086
	1.1–1.8	1.9–9.3	1.1–4.4	0.7–2.9

Continuous data were analyzed using ANOVA. Categorical data were analyzed using a χ² test. 95% confidence intervals of proportions presented with each value.