Table 1 Mean (SD) and median of age, periodontal indices and CD4 + T cell counts
Variables | n | Mean (SD) | Median | Minimum-Maximum |
|---|---|---|---|---|
Age (years) | 120 | 33.25 (7.42) | 32 | 20-55 |
Plaque index | 120 | 2.55 (0.54) | 2.8 | 0.8-3 |
Gingival index | 120 | 2.75 (0.45) | 3 | 0.5-3 |
Probing depth | 120 | 4.77 (1.04) | 4.9 | 2.9-6.8 |
Clinical attachment loss | 120 | 5.29 (1.1) | 5.35 | 3-7.3 |
Total CD4 + Tcell counts (A + B + C) | 120 | 293.43 (151.06) | 294.5 | 36-859 |
Grouped CD4 + T cells | ||||
A (<200 cells/mm3) | 36 (30%) | 135.67 (37.44) | 136 | 36-190 |
B (200–500 cells/mm3) | 71 (59.17%) | 321.27 (87.9) | 312 | 200-500 |
C (>500 cells/mm3) | 13 (10.83%) | 578.24 (100.03) | 534 | 510-859 |