Manometric findings in patients with isolated distal gastroesophageal reflux

Table 1 Comparison of 24-h pH monitoring and esophageal manometry findings in the IDR group and control group

	IDR group	Control group	P-value
	n = 97	n = 100
Age (yr)	47.8 ± 13.4	44.9 ± 12.8	0.134
Sex (F/M)	47/50	42/58	0.512
BMI (kg/m2)	26.6 ± 3.8	26.2 ± 3.8	0.437
EBCA (mmHg)	73.6 ± 44.4	77.6 ± 41.0	0.507
LESP (mmHg)	9.6 ± 7.4	12.7 ± 10.3	0.019
DeMeester score	42.6 ± 24.3	6.2 ± 4.8	0.000

IDR: Isolated distal reflux; BMI: Body mass index; EBCA: Esophageal body contraction amplitude; LESP: Lower esophageal sphincter pressure.

Table 2 Comparison of parameters for the ERD and NERD subgroups of IDR patients

	ERD (n = 55)	NERD (n = 42)	P-value
Age (yr)	45.2 ± 13.3	51.2 ± 13.0	0.032
Sex (F/M)	25/30	22/20	0.511
BMI (kg/m2)	26.8 ± 3.4	26.3 ± 4.2	0.485
EBCA (mmHg)	70.9 ± 50.9	77.1 ± 34.5	0.497
LESP (mmHg)	9.2 ± 6.5	10.2 ± 8.6	0.526
DeMeester score	42.9 ± 27.2	42.1 ± 20.1	0.876

ERD: Erosive reflux disease; NERD: Non-erosive reflux disease.