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. Author manuscript; available in PMC: 2020 Apr 1.
Published in final edited form as: Matern Child Health J. 2019 Apr;23(4):486–495. doi: 10.1007/s10995-018-2656-1

Figure 1.

Figure 1.

This clustered bar chart shows values for the three developmental groups for each of three marijuana outcomes. First, 29.2% of early adolescents (age 12–14) reported that marijuana was easy to get, as compared to 67.1% of late adolescents (age 15–17) and 75.3% of young adults (age 18–25). Only 2.2% of early adolescents reported past month marijuana consumption, compared to 11.9% of late adolescents and 19.1% of young adults. Only 2.6% of early adolescents reported past year initiation of marijuana use, compared to 7.7% of late adolescents and 3.1% of young adults. All differences were statistically significant.

Figure 1 top. 2013 Marijuana Outcomes, By Developmental Group

All differences between age groups statistically significant at p < .001.