Table 1.
Variable | d 1 (mean) | d 2 (mean) | P-Value | 95% CI |
Total time pH < 4 (%) | 10.4 | 7.1 | 0.0049 | 0.8-8.0 |
Total time pH < 4-Upright (%) | 11.7 | 6.3 | 0.0051 | 1.6-7.9 |
Total time pH < 4-Supine (%) | 9.4 | 10.0 | 0.8596 | |
Mean number of reflux episodes (n) | 65.3 | 55.6 | 0.0257 | |
Mean number of long refluxes (n) | 6.8 | 3.8 | 0.0077 | 0.0-6.0 |
Mean duration of long refluxes (min) | 26.5 | 19.7 | 0.0617 | |
Total heartburn episodes (n) | 6.2 | 8.0 | 0.2752 | |
Heartburn episodes with pH < 4 (n) | 2.5 | 2.9 | 0.686 | |
Symptom score | 0.323 | 0.254 | 0.1353 |