Study of the influence of hiatus hernia on gastroesophageal reflux

Table 2 Gastroesophageal reflux parameters in patients with and without hiatus hernia (¯x ± s)

	RE (n = 64)	PR (n = 37)	PhR (n = 84)	PhRE (n = 12)
Patients with HH
% time of reflux
24-h	18.8 ± 15.4	14.9 ± 9.8	2.5 ± 0.2	3.9 ± 2.6
Upright	17.9 ± 5.0	14.4 ± 9.3	2.7 ± 2.2	4.4 ± 3.7
Supine	19.1 ± 2.2	15.1 ± 0.0	2.1 ± 3.5	3.6 ± 4.2
No. of episodes > 5 min
24-h	9.1 ± 4.3	7.5 ± 3.2	0.9 ± 1.4	2.6 ± 4.1
Upright	5.8 ± 4.4	4.2 ± 3.2	0.5 ± 1.0	1.5 ± 1.3
Supine	3.3 ± 2.1	3.2 ± 2.3	0.3 ± 0.6	1.5 ± 1.8
Patients without HH
% time of reflux
24-h	17.1 ± 4.8	13.3 ± 6.7	2.7 ± 2.2	1.5 ± 1.7
Upright	18.9 ± 3.5	7.0 ± 8.0	3.4 ± 2.8	0.3 ± 0.5
Supine	13.5 ± 1.7	2.7 ± 2.2	1.5 ± 3.0	1.1 ± 1.6
No. of episodes > 5 min
24-h	10.5 ± 8.0	6.1 ± 3.5	0.9 ± 1.4	2.0 ± 2.7
Upright	8.1 ± 6.9	4.5 ± 3.0	0.5 ± 1.0	1.6 ± 2.0
Supine	2.3 ± 2.1	1.6 ± 1.4	0.3 ± 0.6	0.3 ± 0.8

HH = Hiatus hernia; RE = Reflux esophagitis; PR = Pathological reflux; PhR = Physiological reflux; PhRE = Esophagitis with physiological reflux.