Effects of body mass index on gastric motility: Comparing children with functional abdominal pain disorders and healthy controls

Table 1 Comparison of gastric motility parameters in children with functional abdominal pain disorders and controls according to lower and higher body mass index

Motility parameter	FAPDs			Controls
	BMI < 15 kg/m2 (n = 109)	BMI ≥ 15 kg/m2 (n = 67)	P value1	BMI < 15 kg/m2 (n = 31)	BMI ≥ 15 kg/m2 (n = 32)	P value1
Fasting antral area (cm2)	2.12	2.71	0.008	1.65	2.16	0.058
Antral area in 1 min (cm2)	10.68	12.57	0.004	9.93	12.61	0.001
Antral area in 15 min (cm2)	6.13	7.19	0.009	4.03	4.95	0.088
Gastric emptying rate (%)	43.01	40.26	0.240	59.64	59.37	0.947
Frequency of antral contraction (3 min)	8.52	8.48	0.809	9.61	9.33	0.152
Amplitude of antral contraction (%)	43.21	46.28	0.117	61.93	61.25	0.868
Antral motility index	3.68	3.98	0.125	5.83	5.78	0.903

¹Independent samples t-test. BMI: Body mass index; FAPDs: Functional abdominal pain disorders.