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

Table 2 Comparison of autonomic parameters between children with abdominal pain-predominant functional gastrointestinal disorders and controls

Autonomic test	Measurement	AP-FGIDs, n = 100	Controls, n = 50	P value1
		Median (range)	Median (range)
Resting heart rate (beats/min)	Resting heart rate (beats/min)	89.0 (57-110)	87.0 (63-114)	0.18
Heart rate response to deep breathing	Maximum-minimum heart rate (beats/min)	30.8 (10-60)	32.0 (10-57)	0.90
Lying to standing heart rate response	30:15 ratio	1.2 (0.9-1.6)	1.2 (0.9-1.8)	0.67
Valsalva manoeuvre	Valsalva ratio	1.5 (1-2.1)	1.5 (1-2.5)	0.23

¹Mann-Whitney U test.