Table 1.

The characteristics of subjects in the smoking group.

The characteristics of smoking women	Total (n = 24)
(1) Smoking (year)
2	7
3	4
4	1
≥5	12
Average (SD) 4.4 (±2.0)
(2) Number of cigarettes per day
≤10	13
≤20	10
≤25	1
Average (SD): 14.8 (±5.4)
(3) Age (year)
<20	2
20–24	22
Average (SD): 21.2 (±1.5)