From: A neglected opportunity for China’s tobacco control? Shift in smoking behavior during and after wives’ pregnancy
Time after the birth of infant (months)
Proportion of relapse by the age of child
3–6
6–12
12–18
0–3
11
2
5
1
3
-
0
None
4
7
Total
16
14
20
Relapse Rate
75%
50%
85%