Table 2.

Total Ghrelin Fasting Levels and Percentage Suppression and Nadir During the OGTT Before and After Surgery in the Remission and Persistent Active Groups

	Fasting Ghrelin, pg/mL		Nadir Ghrelin, pg/mL		Percentage Suppression
		P Valuea		P Valuea		P Valuea
Remission group
Preoperative	323 ± 30		265 ± 22		17 ± 2.4
3 months	456 ± 48	<.0001	318 ± 26	<.0001	27 ± 2.9	.003
12 months	464 ± 45	<.0001	304 ± 15	<.0001	24 ± 2.1	.03
Last visit	484 ± 45	<.0001	313 ± 19	<.0001	26 ± 1.4	.007
Persistent active group
Preoperative	367 ± 40		306 ± 34		15.6 ± 2.7
3 months	376 ± 33	.54	328 ± 33	.2	13.5 ± 2.4	.14

Nadir ghrelin is the lowest ghrelin level achieved during the OGTT. Percentage suppression is the suppression from fasting to nadir during the OGTT.

^aP value represents the test of significance of that time point to the preoperative value.