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Table 5 Age and habits distribution in relation to alleles in OSMF and Controls.

From: Synergistic effect of stromelysin-1 (matrix metalloproteinase-3) promoter (-1171 5A->6A) polymorphism in oral submucous fibrosis and head and neck lesions

Characteristics OSMF
(N = 101)
Control
(N = 126)
  6A/6A 5A/6A 5A/5A p-value 5A/5A 6A/6A 5A/6A (p-value)
Age (Yrs)         
Mean ± SD 38.8 ± 14.5 37.6 ± 14.2 36 ± 8.5 0.671 17.5 ± 0.7 36.7 ± 12.4 38.8 ± 16 0.41
Tobacco with Areca nut         
Chewer 72(97.3%) 23 (95.8%) 2 (66.7%) 0.02 2(100%) 71(64.5%) 12(85.7%) 0.12
Non Chewer 2(2.7%) 1 (4.2%) 1 (33.3%)   0 39(35.5%) 2(14.3%)  
Smoking status         
Smoker 42(56.7%) 19(79.2%) 3 (100%) 0.077 0 47(42.7%) 4(28.6%) 0.11
Non-smoker 32(43.3%) 5 (20.8%) 0   2(100%) 63(57.3%) 10(71.4%)  
Alcohol Intake         
Drinker 22(29.7%) 3 (12.5%) 2 (66.7%) 1.16 0 25(22.7%) 1(7.1%) 0.24
Non Drinker 52(70.3%) 21 (87.5%) 1 (33.3%)   2(100%) 85(77.3%) 13(92.9%)  
  1. [Data was expressed as mean ± SD and %. Fischer exact test is used for habits in cases and control groups]