Table 5.
Relationship between the degree of smoking and periodontitis [n (%)]
| Number of cigarettes | Control | Moderate periodontitis | Severe periodontitis | x2 | P | |
|---|---|---|---|---|---|---|
| <1 pack/day | Current smoker | 25 (26.04) | 22 (22.45) | 64 (35.36) | 5.870 | 0.053 |
| Ever smoker | 71 (73.96) | 76 (77.55) | 117 (64.64) | |||
| ≥1 and ≤2 pack/day | Current smoker | 2 (9.52) | 6 (26.09) | 15 (31.25) | 3.697 | 0.158 |
| Ever smoker | 19 (90.48) | 17 (73.91) | 33 (68.75) | |||
| >2 pack/day | Current smoker | 1 (14.29) | 1 (12.50) | 7 (30.43) | 0.653* | |
| Ever smoker | 6 (85.71) | 7 (87.50) | 16 (69.57) | |||
*
Fisher’s exact test.