GERD (n = 3 310 385)	NDBE (n = 172 481)	IND (n = 11 516)	LGD (n = 4332)	HGD (n = 1549)	EAC (n = 11 676)
Duration of study period (mo), mean ± SD [median]	22.92 ± 15.94 [19.74]	18.86 ± 13.33 [15.63]	17.64 ± 12.83 [14.57]	18.19 ± 12.92 [15.00]	18.05 ± 13.21 [14.24]	16.59 ± 13.92 [11.91]
All-cause
IP admissions	18.5%	15.4%	15.5%	16.4%	20.7%	61.8%
ED visits	49.4%	41.0%	40.2%	38.6%	39.7%	56.1%
Days with OP servicesa	99.7%	99.9%	99.9%	100.0%	99.8%	99.3%
Days with office visitsb	95.1%	94.2%	93.5%	94.7%	94.6%	95.2%
Disease-related
IP admissions	9.1%	7.3%	8.4%	8.3%	10.8%	53.3%
ED visits	13.4%	8.0%	8.9%	8.2%	9.7%	29.5%
Days with OP servicesa	95.9%	98.7%	98.8%	99.4%	99.2%	97.0%
Days with office visitsb	77.7%	71.5%	76.7%	78.3%	75.9%	82.1%