Table 9.
Comparison of mean gingival crevicular fluid free haem concentration (ng/ml) based on N-benzoyl-DL-arginine-2-naphthylamide test in smokers and nonsmokers among diseased subjects using independent student’s t-test
| Group | Marker | BANA | n | Mean±SD | Mean difference | P |
|---|---|---|---|---|---|---|
| Smokers | Free haem concentration | Positive | 28 | 25.89±5.45 | −0.29 | 0.87 |
| Negative | 11 | 26.19±2.88 | ||||
| Nonsmokers | Free haem concentration | Positive | 24 | 27.15±4.97 | 1.18 | 0.46 |
| Negative | 15 | 25.97±4.59 |
n – Sample size; SD – Standard deviation; BANA – N-benzoyl-DL-arginine-2-naphthylamide; ng – Nanogram; ml – Milliliter; P = 0.001