Table 1

Time periods and reflux indices for eight positions. Duration of pH monitoring in each position: unedited periods: then edited periods. Reflux indices for each of the eight positions for edited periods

Variable Supine Supine 30° Prone Prone 30° Left Left 30° Right Right 30°
Unedited time (min)347.7353.2355.2342.4359.5 355.5368.3363.0
SEM7.45.85.35.67.85.86.46.1
Edited time (min)267.4278.1279.3285.7275.5277.0276.5286.1
SEM11.211.29.210.212.213.112.99.9
Reflux index (%)14.516.28.25.28.47.011.912.1
SEM2.63.91.71.21.41.61.82.1
No of episodes/edited time8.26.04.44.16.35.46.34.8
SEM1.20.90.80.71.01.30.90.7
No of episodes >5 min/edited time1.41.71.20.61.00.61.51.2
SEM0.30.40.30.20.60.21.20.2
Longest episode (min)21.524.312.78.412.312.719.623.2
SEM4.67.12.82.72.84.14.55.5
  • Values have been rounded to a single decimal place.