Relationship between gastrointestinal and extra-gastrointestinal symptoms and delayed gastric emptying in functional dyspeptic patients

Table 1 Prevalence, sensitivity and specificity and crude OR for delayed gastric emptying of symptoms and of fasting antral volume at three cut-off levels

	Prevalence %	Sensitivity %	Specificity %	OR
Pain centered in the upper abdomen	45.4	58.1	63.1	2.37
Discomfort centered in the upper abdomen	79.6	81.4	21.5	1.2
Upper abdominal bloating	84.3	88.4	18.5	1.72
Fullness	68.5	62.8	27.7	0.64
Early satiety	45.4	48.8	56.9	1.26
Nausea	42.6	53.5	64.6	2.1
Heartburn	26.9	34.9	78.5	1.95
Epigastric burning	11.1	9.3	87.7	0.73
Belching	74	74.4	26.1	1.03
Vomiting	27.8	20.9	67.7	0.55
Acid regurgitation	19.4	23.3	83	1.48
Drowsiness	16.7	32.6	93.9	7.36
Headache	41.7	46.5	61.5	1.39
Palpitation	7.4	6.9	92.3	0.9
Fasting antral volume (mL)
<10 mL (reference group)	33.3	18.6	43	1.09
10–14 mL	34.3	39.5	30.8	2.97
>15 mL	32.4	41.9	26.2	3.71