Table 1.
Baseline demographic characteristics by oral leukoplakia in the Linxian General Population Trial Cohort
| Oral leukoplakia |
|||
|---|---|---|---|
| Yes | No | P value | |
| Age (Mean±SD) | 51.4±8.7 | 52.0±8.9 | <0.001 |
| Sex, n (%) | |||
| Men | 5452 (76.7) | 7668 (34.3) | <0.001 |
| Women | 1653 (23.3) | 14676 (65.7) | |
| BMI, Mean±SD (kg/m2) | 21.9±2.2 | 22.0±2.6 | 0.032 |
| Education level, n (%) | |||
| Never | 1982 (27.9) | 9831 (44.0) | |
| Less than 5 years | 2753 (38.7) | 6430 (28.8) | <0.001 |
| Primary school | 1072 (15.1) | 2079 (9.3) | |
| Tertiary high school or higher education | 962 (13.6) | 1742 (7.8) | |
| Unknown | 366 (4.7) | 2263(10.1) | |
| Smoking, n (%) | |||
| No | 2740 (38.6) | 17824 (79.8) | <0.001 |
| Yes | 4365 (61.4) | 4520 (20.2) | |
| Alcohol drinking, n (%) | |||
| No | 4597 (64.7) | 17942 (80.3) | <0.001 |
| Yes | 2508 (35.3) | 4402 (19.7) | |
| Family history of cancer, n (%) | <0.001 | ||
| No | 4508 (63.5) | 14808(66.3) | |
| Yes | 2597 (36.5) | 7536(33.7) | |