Table 2 Association of demographic variables with the severity of OED
| Â | Dysplasia | P value | |
|---|---|---|---|
Mild | Moderate/severe | ||
n (%) | n (%) | ||
n = 49 | n = 21 | ||
Age (years) | 58.61 ± 11.52 | 58.94 ± 12.62 | 0.915 |
Sex | Â | Â | 0.406 |
 Female | 10 (20.4%) | 3 (14.3%) |  |
 Male | 39 (79.6%) | 18 (85.7%) |  |
Education |  |  | < 0.001 |
 Junior high school | 3 (6.1%) | 17 (81%) |  |
 Senior high school or above | 46 (93.9%) | 4 (19%) |  |
 Residing |  |  | 0.233 |
 Capital | 25 (51%) | 8 (38.1%) |  |
 Others | 24 (49%) | 13 (61.9%) |  |
Self-awareness | Â | Â | 0.002 |
 No | 48 (98%) | 15 (71.4%) |  |
 Yes | 1 (2%) | 6 (28.6%) |  |
Betel history |  |  | < 0.001 |
 Never or ex-used | 36 (73.5%) | 3 (14.3%) |  |
 Current users | 13 (26.5%) | 18 (85.7%) |  |
Tobacco history | Â | Â | 0.003 |
 Never smoked | 25 (51.0%) | 2 (9.5%) |  |
 Current smokers | 24 (48.9%) | 19 (90.5%) |  |