Table 2.
The clinicopathological characteristics related to PD-L1 expression in periodontitis patients.
| Variables | No. of patients |
PD-L1 expression |
P–value∗ | |
|---|---|---|---|---|
| Low, n (%) | High, n (%) | |||
| Total samples | 61 | 30 (49.2) | 31 (50.8) | |
| Age (years) | ||||
| ≥50 | 39 | 18 (46.2) | 21 (53.8) | 0.529 |
| <50 | 22 | 12 (54.5) | 10 (45.5) | |
| Gender | ||||
| Female | 32 | 19 (59.4) | 13 (40.6) | 0.653 |
| Male | 29 | 11 (37.9) | 18 (62.1) | |
| Tobacco use | ||||
| No | 40 | 21 (52.5) | 19 (47.5) | 0.474 |
| Yes | 21 | 9 (42.9) | 12 (57.1) | |
| Alcohol use | ||||
| No | 45 | 25 (55.6) | 20 (44.4) | 0.095 |
| Yes | 16 | 5 (31.3) | 11 (68.8) | |
| Hypertension | ||||
| No | 41 | 22 (53.7) | 19(46.3) | 0.316 |
| Yes | 20 | 8 (40.0) | 12 (60.0) | |
| Diabetes | ||||
| No | 47 | 25 (53.2) | 22 (46.8) | 0.251 |
| Yes | 14 | 5 (35.7) | 9 (64.3) | |
| Stage | ||||
| Mild | 26 | 19 (73.1) | 7 (26.9) | 0.005 |
| Moderate | 21 | 7 (33.3) | 14 (66.7) | |
| Severe | 14 | 4 (28.6) | 10 (71.4) | |
∗P–values were calculated by χ2 test. High in this analysis is based on a PD-L1 level > 9.9 (median); the remaining individuals were classified as low.