Beverages | pH | Smokers Mean ± SD | Non Smokers Mean ± SD | t-value | Mothers Mean ± SD | Wives Mean ± SD | t-value |
Green tea Black tea Cinnamon Hibiscus Vinegar Citrus aurantifolia | 6.2 5.5 5.4 2.8 2.4 2.1 | 9.09 ± 5.64 9.68 ± 5.84 12.36 ± 6.81 15.01 ± 7.90 16.77 ± 8.89 17.38 ± 9.05 | 8.19 ± 5.71 8.25 ± 5.36 9. 76 ± 6.81 13.37 ± 7.64 14.02 ± 8.68 15.33 ± 8.93 | 0.3957 0.3344 0.2646 0.3608 0.2999 0.3506 | 11.25 ± 6.51 11.47 ± 6.24 13.30 ± 8.34 15.75 ± 7.86 19.58 ± 11.16 20.91 ± 11.71 | 8.31 ± 5.49 7.96 ± 4.54 11.39 ± 6.98 13.49 ± 7.22 17.40 ± 10.35 17.67 ± 10.61 | 0.2086 0.1466 0.3379 0.3084 0.3661 0.3135 |