Table 2.

Baseline sociodemographic variables of healthy subjects with CS or BQ chewing histories

CSCS + BQBQ
N111Pa107Pa12Pa
Male (%)88.388.80.4783.30.31
(M/F)99/1295/1210/2
Age, y41.542.70.2344.80.22
Range19–7021–6428–67
Smoking (%)100100
(±)111/0107/00/12
Smoking years23.127.1<0.01
Range1–535–50
Drinking alcohol (%)29.770.158.3
(±)33/7875/327/5
Chewing betel quid (%)100100
(±)107/012/0
Chewing betel days34.923.4
  • aThe P < 0.05 versus smoking (CS) by Student t test.