under one year, one year old, two to five years old
Add Health
Wave I In-Home Interview
S28Q4 AGE-BEGAN SMOKING REGULARLY-W1
H1TO4
Codes
Label
under one year, one year old, two to five years old
-
0 
under one year -
1 one year old -
5 two to five years old -
6 six years old -
7 seven years old -
8 eight years old -
9 nine years old -
10 ten years old -
11 eleven years old -
12 twelve years old -
13 thirteen years old -
14 fourteen years old -
15 fifteen years old -
16 sixteen years old -
17 seventeen years old -
18 eighteen years and older