Table 3. Incidence of erosive esophagitis by sitting time per day stratified by obesity.

Subgroup		Sitting time (hours/day), HRsa (95% CI)				p for trend
		≤ 6	7–8	9–10	≥ 11
BMI
	< 25 kg/m2	1.00	0.96 (0.83–1.12)	0.93 (0.81–1.07)	0.82 (0.71–0.95)	0.009
	≥ 25 kg/m2	1.00	0.87 (0.65–1.16)	0.77 (0.59–1.00)	0.99 (0.76–1.30)	0.768

HR: hazard ratio; CI, confidence interval.

^aEstimated from Cox proportional hazard models: adjusted for sex, age, alcohol intake, smoking status, educational level, history of diabetes, history of dyslipidemia, and exercise frequency.