Table 2 Association of smoking and dental factors
Smoking Status, No (Valid %) | ||||
|---|---|---|---|---|
Current (n =) | Former (n =) | Never (n =) | p-value* | |
Number of teeth losta | ||||
0–4 | 1 (12.5) | 20 (22.5) | 49 (48.5) | 0.001 |
5–7 | 2 (25.0) | 32 (36.0) | 24 (23.8) | |
8 + | 5 (62.5) | 37 (41.6) | 28 (27.7) | |
Not evaluated | 0 | 0 | 0 | NA |
Missing | 0 | 4 | 1 | |
Gingival index | ||||
0–1 | 1 (25.0) | 30 (58.8) | 29 (51.8) | 0.404 |
2–3 | 3 (75.0) | 21 (41.2) | 27 (48.2) | |
Not evaluated | 4 | 22 | 30 | NA |
Missing | 0 | 20 | 16 | |
Pocket depth | ||||
0–4 mm | 1 (20.0) | 34 (45.3) | 45 (50.0) | 0.025 |
4–6 mm | 3 (60.0) | 26 (34.7) | 40 (44.4) | |
7 + mm | 1 (20.0) | 15 (20.0) | 5 (5.6) | |
Not evaluated | 3 | 9 | 10 | NA |
Missing | 0 | 9 | 2 | |
Loss of attachment | ||||
Yes | 2 (33.3) | 21 (32.8) | 26 (35.6) | 0.95 |
No | 4 (66.7) | 43 (67.2) | 47 (64.4) | |
Not evaluated | 2 | 21 | 23 | NA |
Missing | 0 | 8 | 6 | |
Alveolar bone loss | ||||
Yes | 3 (37.5) | 16 (23.5) | 26 (32.9) | 0.37 |
No | 5 (62.5) | 52 (76.5) | 53 (67.1) | |
Not evaluated | 0 | 18 | 18 | |
Missing | 0 | 7 | 5 | |
Dental score (tertile of IRT derived score) | ||||
Lowest | 3 (37.5) | 28 (30.1) | 33 (32.4) | 0.035 |
Middle | 1 (12.5) | 31 (33.3) | 48 (47.1) | |
Highest | 4 (50.0) | 34 (36.6) | 21 (20.6) | |