How old were you when you first used...?
j. Cycle Beads
Categories
Value
Category
0
not used, no age specified!
13
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
37
38
42
43
44
Sysmiss
Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.