Journal of Neurogastroenterology and Motility

Table. 2. Table 2

Characteristics of Reflux Episodes Preceded by Supragastric Belches, Reflux Episodes Followed by Supragastric Belches, and Lone Reflux Episodes

Characteristics	Reflux episodes preceded by SGBs	Reflux episodes followed by SGBs	Lone reflux episodes
Proximal extension (cm) from LES	9.0 (9.0-15.0)^a	9 (9.0-16.5)^b	9 (7.0-9.0)^a,b
Acid contact time (sec)	24.7 (15.3-75.2)^a	29.5 (17.3-43.8)^b	15.9 (7.4-33.0)^a,b
Bolus contact time (sec)	14.7 (10.0-19.4)^a	14.7 (10.8-20.5)^b	11.9 (9.7-14.3)^a,b
% acid reflux	64.1 (50.0-90.1)^c	100.0 (50.0-100.0)^b,c	63.6 (41.7-91.5)^b

^aP < 0.05 reflux episodes preceded by supragastric belches (SGBs) vs lone reflux episodes.

^bP < 0.05 reflux episodes followed by SGBs vs lone reflux episodes.

^cP < 0.05 reflux episodes preceded by SGBs vs reflux episodes followed by SGBs.

LES, lower esophageal sphincter.

Data are expressed as median (interquartile range).

J Neurogastroenterol Motil 2023;29:343~351 https://doi.org/10.5056/jnm22198