Showing baseline demographic and characteristics for each group

VariablesMean (SD)Male, N (%)Female, N (%)No dysplasia, N (%)Mild dysplasia, N (%)Smokers, N (%)Non-smokers, N (%)p-value
AgeGroup A50.37 (8.67)0.399
Group B54.93 (8.83)
Group C51.62 (11.45)
GenderGroup A14 (93.3)1 (6.7)0.567
Group B14 (93.3)1 (6.7)
Group C12 (85.7)2 (14.3)
Dysplasia stage at baselineGroup A8 (53.3)7 (46.7)0.529
Group B9 (60.0)6 (40.0)
Group C10 (71.4)4 (28.6)
SmokingGroup A11 (73.3)4 (26.7)0.418
Group B8 (53.3)7 (46.7)
Group C10 (71.4)4 (28.6)

SD: standard deviation. Significance level at p-value < 0.05