Table 1. Description of Barrett's esophagus nonprogressor and progressor patients included in the study.

	Nonprogressors (n=46)	Progressors (n=23)
Mean age (years)	62.5	63.9
Male	35 (76%)	22 (96%)
Mean targets per patient	1.70	1.87
Range follow-up time (minimum–maximum years) between baseline and outcome biopsies	1.1–9.0	1.2–11.5
Mean follow-up time (years) between baseline and outcome biopsies	4.3	3.9
Median follow-up time (years) between baseline and outcome biopsies	4.1	3.1