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Table 2 Age, gender and oral risk factors of the 5071 potentially malignant oral mucosal disorders in the current study

From: Malignant transformation in 5071 southern Taiwanese patients with potentially malignant oral mucosal disorders

   Age Gender Alcohol drinking Betel-quid chewing Cigarette smoking
  N Mean ± Standard deviation Male N (%) Female N (%) Yes N (%) No N (%) Yes N (%) No N (%) Yes N (%) No N (%)
Epithelial dysplasia with oral submucous fibrosis 186 47.74 ± 11.84 177 (95.16) 9(4.84) 141 (75.81) 45 (24.19) 166 (89.25) 20 (10.75) 164 (88.17) 22 (11.83)
Epithelial dysplasia with hyperkeratosis or epithelial hyperplasia 957 51.65 ± 12.69 828 (86.52) 129 (13.48) 702 (73.35) 255 (26.65) 852 (89.03) 105 (10.97) 824 (86.10) 133 (13.90)
Hyperkeratosis or epithelial hyperplasia 1684 48.70 ± 13.64 1422 (84.44) 262 (15.56) 1226 (72.80) 458 (27.20) 1489 (88.42) 195 (11.58) 1457 (86.52) 227 (13.48)
Oral submucous fibrosis 994 44.69 ± 12.43 914 (91.95) 80(8.05) 728 (73.24) 266 (26.76) 879 (88.43) 115 (11.57) 857 (86.2) 137 (13.8)
Lichen planus 381 51.08 ± 13.22 149 (39.11) 232 (60.89) 272 (71.65) 108 (28.35) 345 (90.55) 36 (9.45) 334 (87.66) 47 (12.34)
Verrucous hyperplasia 869 50.16 ± 12.09 809 (93.10) 60 (6.90) 645 (74.22) 224 (25.78) 747 (85.96) 122 (14.04) 735 (84.58) 134 (15.42)
  1. Data are N (%).