Table 1 Summary findings of pH and Bilitec recording
Total timeUprightSupine
Mean recording time (h)21.2 (1.6)12.2 (2.2)8.7 (1.6)
% time pH<42.4 (0.6–7.6)2.8 (0.7–8.7)0.3 (0–4.9)
No of acid reflux episodes43 (16–91)34 (11–69)3 (0–16)
No of acid reflux episodes >5 min1 (0–3)0 (0–2)0 (0–1)
% time bilirubin absorbance >0.144.9 (0.8–20.2)5.9 (0.9–22.3)0 (0–15.4)
No of DGOR episodes15 (4–37)12 (3–30)0 (0–7)
No of DGOR episodes >5 min2 (0–6)2 (0–4)0 (0–2)
  • Values are shown as mean (SEM) or as median (interquartile range).

  • DGOR, duodeno-gastro-oesophageal reflux.