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Values of the average pH calculated using both models along with the statistical significance of the differences between them in the total examined group, subgroup of volunteers with pH <7, and a subgroup of volunteers with pH >7.
| pH calculated with equation no. 1 | pH calculated with equation no. 2 | Statistical significance | |
|---|---|---|---|
| Entire evaluated group | 7.08±0.12 | 7.07±0.12 | p=1.33E−10 |
| Subgroup with pH <7 | 6.87±0.04 | 6.87±0.04 | p=7.20E−06 |
| Subgroup with pH >7 | 7.13±0.06 | 7.12±0.06 | p=3.73E−12 |
