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Number of Individuals and Measurement Items at Each Age
| Antisocial behavior | Alcohol use | |||
|---|---|---|---|---|
| Age | n | No. of items | n | No. of items |
| 12.8 | 6,738 | 9 | 3,628 | 3 |
| 13.8/13.9a | 6,172 | 10 | 3,558 | 3 |
| 15.5 | 3,325 | 16 | 3,399 | 15 |
| 17.8 | 3,952 | 6 | 4,202 | 14 |
Age 13 alcohol use and antisocial behavior were measured at 13.8 and 13.9 years, respectively.
