Prevalence of symptoms in patients during the first 24 hour period (day 1) of simultaneous recordings with the catheter free system (Bravo) and the conventional pH measurement system (Synectics), and the second 24 hour period (day 2) recording with only the catheter free system
| Day 1 (%) | Day 2 (%) | p Value* | |
|---|---|---|---|
| *χ2 test. | |||
| Sleep disorders | 68 | 15 | <0.0001 |
| Dysphagia for solids | 74 | 60 | NS |
| Dysphagia for liquids | 51 | 20 | 0.006 |
| Thoracic discomfort | 68 | 57 | NS |
| Saliva swallowing discomfort | 51 | 29 | 0.05 |