Autonomic functions and gastric motility in children with functional abdominal pain disorders

Table 4 Correlation between autonomic parameters and gastric motility parameters among children with abdominal pain-predominant functional gastrointestinal disorders and controls

	Gastric motility parameter	Valsalva ratio	Minimum -maximum heart rate	30:15 ratio
AP-FGIDs,	FAA	-0.01	0.04	-0.09
n = 100	AA1	-0.02	-0.02	-0.06
	AA15	-0.01	-0.03	-0.07
	GER	0.07	-0.03	0.06
	FAA	-0.02	-0.07	0.04
	AAC	0.07	-0.06	0.13
	MI	0.07	-0.07	0.14
Controls,	FAA	0.11	-0.05	-0.11
n = 50	AA1	0.03	0.01	-0.01
	AA15	0.07	0.05	0.17
	GER	0.2	0.1	0.39a
	FAC	0.7a	-0.09	0.14a
	AAC	-0.07	0.11	-0.2
	MI	0.05	0.17	0.07

Spearman correlation coefficient,

^aP < 0.05. FAA: Fasting antral area; AA1: Antral area at 1 min; AA15: Antral area at 15 min; GER: Gastric emptying rate; FAC: Frequency of antral contraction; AAC: Amplitude of antral contraction; MI: Antral motility index.