Results by position
| Variable | Supine mean | Prone mean | Left side mean | Right side mean | SEM | p | LSD |
|---|---|---|---|---|---|---|---|
| Mean time (min) | 272.8 | 282.5 | 276.5 | 281.3 | — | — | — |
| Reflux index (%) | 15.3 | 6.7 | 7.7 | 12.0 | 1.22 | <.001 | 3.4 prone, left <right, supine |
| No of episodes/mean time | 7.1 | 4.3 | 5.8 | 5.5 | 0.57 | 0.007 | 1.6 prone<supine |
| No of episodes >5 min/mean time | 1.6 | 0.9 | 0.8 | 1.3 | 0.17 | 0.003 | 0.5 prone, left <right, supine |
| Longest episode (min) | 22.8 | 10.6 | 12.5 | 21.4 | 2.41 | <.001 | 6.7 prone, left <right, supine |
p Value from analysis of covariance (df=3,134).
LSD=least significant difference (p=0.05).