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Average initiation ages for entry level agents (N = 2498). This table is depicted by Figure 1 and emphasizes the rapid fall in age at initiation of cannabis after it first became available in high schools. |
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| Tobacco |
Alcohol |
Cannabis |
|
|
|
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| 1936–1940 |
16.07 |
16.43 |
26.39 |
| 1941–1945 |
15.86 |
15.89 |
21.12 |
| 1946–1950 |
14.98 |
16.18 |
18.64 |
| 1951–1955 |
14.88 |
15.79 |
16.58 |
| 1956–1960 |
14.8 |
15.25 |
15.87 |
| 1961–1965 |
14.74 |
14.71 |
15.66 |
| 1966–1970 |
15.28 |
14.84 |
14.92 |
| 1971–1975 |
15.08 |
15.04 |
15.68 |
| 1976–1980 |
14.99 |
15.22 |
15.15 |
| 1981–1985 |
14.29 |
14.66 |
14.32 |
O'Connell and Bou-Matar Harm Reduction Journal 2007 4:16 doi:10.1186/1477-7517-4-16 |
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