From: Gingival phenotypes and their relation to age, gender and other risk factors
Khat chewing | P | khat chewing duration | P | ||||
---|---|---|---|---|---|---|---|
Yes | No | < 5 years | ≥ 5 years | ||||
GT | < 1.5 mm | 34 (15.1) | 46 (19.6) | 0.803 | 13 (17.1) | 21 (14.5) | 0.719 |
1.5–2 mm | 149 (67.9) | 156 (66.4) | 55 (72.4) | 95 (65.5) | |||
> 2 mm | 38 (17.0) | 33 (14.0) | 8 (10.5) | 29 (20.0) | |||
WKG | ≤ 4 mm | 66 (30.2) | 50 (21.2) | 0.084 | 34 (44.7) | 34 (23.5) | 0.259 |
4.1–8 mm | 134 (60.4) | 181 (77.0) | 38 (50.0) | 95 (65.5) | |||
> 8 mm | 21 (9.4) | 4 (1.8) | 4 (5.3) | 16 (11.0) | |||
PH | ≤ 3 mm | 130 (58.5) | 120 (51.0) | 0.425 | 55 (72.4) | 74 (51.0) | 0.15 |
> 3 mm | 91 (41.5) | 115 (49.0) | 21 (27.6) | 71 (49.0) |