Collaborative PsychiatricEpidemiology Surveys
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SA8b.
About how old were you (the first time you had a period of this sort)?
| Mean | Std Dev | Median | Min | Max |
|---|---|---|---|---|
| 10.62 | 09.65 | 10.00 | 04.000 | 56.000 |
You can also view this variable in SDA 
.
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