Table 3. Associations with risk of endoscopic-only Barrett’s esophagus.

		Endo-only BE vs. Primary care controls	Endo-only BE vs. Endoscopy controls
		AOR* (95% CI)	AOR* (95% CI)
BMI
	<25	1.00 (Ref)	1.00 (Ref)
	25–29.9	0.62 (0.31–1.26)	0.76 (0.40–1.47)
	≥30	0.71 (0.37–1.37)	1.19 (0.66–2.15)
WHR
	Tertile 1	1.00 (Ref)	1.00 (Ref)
	Tertile 2	0.73 (0.38–1.39)	1.06 (0.58–1.93)
	Tertile 3	1.64 (0.91–2.93)	1.65 (0.97–2.80)
GERD symptoms
	Never	1.00 (Ref)	1.00 (Ref)
	Ever	2.25 (1.32–3.85)	0.54 (0.32–0.89)
GERD duration
	Never	1.00 (Ref)	1.00 (Ref)
	<5 yrs	2.22 (0.21–23.2)	0.80 (0.10–6.17)
	5–9 yrs	5.14 (1.08–24.5)	1.11 (0.32–3.80)
	≥10 yrs	3.49 (2.07–5.91)	1.14 (0.70–1.84)
Frequency of GERD and age at onset
	Never	1.00 (Ref)	1.00 (Ref)
	≥weekly age <30y	2.86 (0.88–9.26)	0.44 (0.17–1.12)
	≥weekly age 30-49y	3.81 (1.76–8.25)	0.64 (0.32–1.26)
	≥weekly age 50-79y	1.45 (0.50–4.16)	0.30 (0.11–0.81)
	<weekly age <30y	1.61 (0.19–13.8)	0.52 (0.06–4.07)
	<weekly age 30-49y	-	-
	<weekly age 50-79y	1.08 (0.12–9.58)	0.46 (0.06–3.63)
Smoking status
	Never	1.00 (Ref)	1.00 (Ref)
	Ever	0.57 (0.34–0.97)	0.56 (0.35–0.91)
Alcohol status
	Never	1.00 (Ref)	1.00 (Ref)
	Former	1.77 (0.52–6.08)	1.75 (0.60–5.11)
	Current	1.53 (0.45–5.15)	1.92 (0.67–5.50)
H pylori infection
	No	1.00 (Ref)	1.00 (Ref)
	Yes	0.95 (0.56–1.62)	1.05 (0.64–1.72)
NSAID use
	None	1.00 (Ref)	1.00 (Ref)
	< Daily	1.08 (0.38–3.11)	1.27 (0.48–3.38)
	Daily	0.68 (0.38–1.19)	0.81 (0.48–1.36)
PPI or H2RA use
	No	1.00 (Ref)	1.00 (Ref)
	Yes	4.44 (2.61–7.54)	0.88 (0.53–1.44)
Active Gastritis
	No	1.00 (Ref)	1.00 (Ref)
	Yes	0.76 (0.43–1.35)	0.95 (0.56–1.61)
Chronic Gastritis
	No	1.00 (Ref)	1.00 (Ref)
	Yes	0.99 (0.61–1.62)	1.16 (0.74–1.82)

Endo-only BE are those with endoscopically suspected BE in the absence of specialized intestinal metaplasia.

*Adjusted for age (<50, 50-<60, 60-<70, ≥70yrs), sex and race (white, non-white).