Table 1

Chest physiotherapy and oesophageal pH monitoring; values are mean (SE)

DataStatistical comparison1-150
TotalBackgroundSPTMPTSPT v backgroundSPT v MPTMPT v background
Mean No of episodes/hour1.2  (0.2)1.1  (0.1) 2.5  (0.4) 1.6  (0.3)1.3  (0.3)  p = 0.00050.9  (0.3)  p = 0.0070.5  (0.3) p = 0.10, NS
Mean duration of episodes (min)3.3  (0.5)4.3  (0.9) 2.4  (0.4) 3.5  (1.0)1.9  (0.9)  p = 0.00051.1  (0.9)  p = 0.21, NS0.8  (1.3) p = 0.10, NS
Fractional reflux time (%)5.6  (0.8)6.9  (1.3)11.7  (2.6)10.7  (2.7)4.8  (2.0)  p = 0.031.0  (1.6)  p = 0.53, NS3.8  (2.4) p = 0.13, NS
  • 1-150 Difference of mean (SE of difference).