Table 2

24 hour pH/impedance data between groups

Treatment n=24Control n=28P value
MNBI, Ω, mean (SD)1751 (1104)2131 (1095)0.219
AET, %, mean (SD)8.7 (10)4 (4.1)0.108
RE, median (IQR)64 (33.5)55 (32.5)0.373
Pathological GORD13 (54.2)8 (28.6)0.061
FH3 (12.5)2 (7.1)0.514
HO05 (17.9)0.029
  • Values are expressed as numbers (percentages) unless stated otherwise.

  • AET, acid exposure time; FH, functional heartburn; GORD, gastro-oesophageal reflux disease; HO, hypersensitive oesophagus; MNBI, mean nocturnal baseline impedance; RE, reflux events.