Table 2. Demographics and clinical characteristics of patients with oral premalignant lesions.
| Characteristics | OPLa samples (n = 83) No. (%) |
|---|---|
| Age at diagnosis. Mean (SDb) | 60.8 (11.6) |
| Gender | |
| Male | 48 (57.8) |
| Female | 35 (42.2) |
| Period of diagnosis | |
| 1995–1999 | 6 (7.2) |
| 2000–2004 | 14 (16.9) |
| 2005–2009 | 29 (34.9) |
| 2010–2014 | 34(36.1) |
| Tobacco use | |
| Non smoker | 45 (54.2) |
| < 20 cigarettes/day | 30 (36.1) |
| ≥ 20 cigarettes/day | 8 (9.6) |
| Alcohol consumption | |
| Non drinker | 58 (69.9) |
| < 100 grams/day | 23 (27.7) |
| ≥ 100 grams/day | 2 (2.4) |
| Subsite | |
| Gum | 10 (12.0) |
| Cheek mucosa | 35 (42.2) |
| Mobile tongue | 22 (26.5) |
| Floor of the mouth | 3 (3.6) |
| Oral cavity non-specified | 9 (10.8) |
| Oropharynx | 4 (4.8) |
| Previous neoplasia | |
| Yes | 7 (8.4) |
| No | 76 (91.6) |
| Diagnostic | |
| Oral lichen planus | 45 (54.2) |
| Dysplasia low grade | 13 (15.7) |
| Dysplasia moderate grade | 12 (14.5) |
| Dysplasia severe grade | 13 (15.7) |
| Treatment by diagnostic (n = 79) | |
| Oral lichen planus | 45 (54.2) |
| No treatment (clinical control) | 13 |
| Topical treatment | 14 |
| Surgery | 14 |
| CO2 laser | 0 |
| Combined treatment | 1 |
| Missing | 3 |
| Dysplasia low grade | 13 (15.7) |
| No treatment (clinical control) | 4 |
| Topical treatment | 1 |
| Surgery | 5 |
| CO2 laser | 1 |
| Oral retinoid | 0 |
| Combined treatment | 2 |
| Dysplasia moderate grade | 12 (14.5) |
| No treatment (clinical control) | 3 |
| Topical treatment | 1 |
| Surgery | 8 |
| CO2 laser | 0 |
| Oral retinoid | 0 |
| Dysplasia severe grade | 13 (15.7) |
| No treatment (clinical control) | 2 |
| Topical treatment | 0 |
| Surgery | 9 |
| CO2 laser | 0 |
| Oral retinoid | 0 |
| Combined treatment | 1 |
| Missing | 1 |
aOPL: Oral pre-malignant lesions.
bSD: Standard deviation.