Table 1.
Differences of clinicopathological features of OSF between China and India
| Variable | China (%) | India (%)12 | P value |
|---|---|---|---|
| Total | 674 | 1000 | |
| Gender | |||
| Male | 654 (97.03) | 830 (83.00) | 0.000 |
| Female | 20 (2.97) | 170 (17.00) | |
| Age | |||
| 0‐9 | 0 (0.00) | 1 (0.10) | 0.000 |
| 10‐19 | 16 (2.37) | 203 (20.30) | |
| 20‐29 | 219 (32.49) | 481 (48.10) | |
| 30‐39 | 227 (33.68) | 190 (19.00) | |
| 40‐49 | 144 (21.36) | 85 (8.50) | |
| >50 | 68 (10.09) | 40 (4.00) | |
| Habits | |||
| Chewing areca nut | 673 (99.85) | 594 (59.40) | 0.000 |
| Smoking tobacco | 176 (26.11) | 324 (32.40) | 0.006 |
| Symptoms | |||
| Restricted mouth opening | 382 (56.68) | 908 (90.80) | 0.000 |
| Burning | 350 (51.93) | 891 (89.10) | 0.000 |
| Associated lesions | |||
| OLK | 101 (14.99) | 48 (4.80) | 0.000 |
| OLP | 2 (0.30) | 7 (0.70) | 0.268 |
OLK, oral leukoplakia; OLP, oral lichen planus; OSF, oral submucous fibrosis.