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| Table 232.50. | Percentage distribution of students in grades 9-12, by number of times they reported using marijuana anywhere or on school property during the previous 30 days and selected student characteristics: Selected years, 2011 through 2017 |
| [Standard errors appear in parentheses] | ||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year and student characteristic | Anywhere (including on school property)1 | On school property2 | ||||||||||||||||||||||
| 0 times | 1 or 2 times | 3 to 39 times | 40 or more times | 0 times | 1 or 2 times | 3 to 39 times | 40 or more times | |||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ||||||||||||||||
| 2011 | ||||||||||||||||||||||||
| Total | 76.9 | (0.80) | 7.4 | (0.30) | 10.9 | (0.42) | 4.8 | (0.30) | 94.1 | (0.39) | 2.8 | (0.22) | 2.3 | (0.21) | 0.7 | (0.09) | ||||||||
| Sex | ||||||||||||||||||||||||
| Male | 74.1 | (1.01) | 7.1 | (0.40) | 11.8 | (0.57) | 7.0 | (0.47) | 92.5 | (0.56) | 3.1 | (0.28) | 3.2 | (0.31) | 1.2 | (0.17) | ||||||||
| Female | 79.9 | (0.95) | 7.7 | (0.48) | 9.9 | (0.56) | 2.4 | (0.26) | 95.9 | (0.32) | 2.5 | (0.21) | 1.4 | (0.19) | 0.2 | (0.04) | ||||||||
| Race/ethnicity | ||||||||||||||||||||||||
| White | 78.3 | (1.09) | 6.9 | (0.42) | 10.2 | (0.59) | 4.6 | (0.44) | 95.5 | (0.42) | 2.2 | (0.26) | 1.9 | (0.23) | 0.4 | (0.09) | ||||||||
| Black | 74.9 | (1.35) | 7.9 | (0.69) | 12.5 | (0.81) | 4.7 | (0.63) | 93.3 | (0.77) | 3.2 | (0.43) | 2.8 | (0.52) | 0.7 | (0.18) | ||||||||
| Hispanic | 75.6 | (1.27) | 8.3 | (0.59) | 11.5 | (0.67) | 4.7 | (0.46) | 92.3 | (0.54) | 3.6 | (0.26) | 3.1 | (0.40) | 1.0 | (0.21) | ||||||||
| Asian | 86.4 | (3.75) | ‡ | (†) | 5.5 | (0.96) | 3.2 | ! | (1.34) | 95.5 | (1.34) | 2.4 | ! | (1.15) | ‡ | (†) | 1.5 | ! | (0.70) | |||||
| Pacific Islander | 68.9 | (7.08) | 11.3 | (3.34) | 13.2 | ! | (5.20) | 6.6 | ! | (2.27) | 87.5 | (4.94) | 5.6 | ! | (2.24) | ‡ | (†) | ‡ | (†) | |||||
| American Indian/Alaska Native | 52.6 | (3.20) | 10.5 | (2.82) | 23.6 | (2.57) | 13.2 | (1.81) | 79.1 | (4.05) | 8.6 | (2.18) | 9.8 | (1.79) | 2.5 | (0.67) | ||||||||
| Two or more races | 73.2 | (2.10) | 7.2 | (1.20) | 12.9 | (1.44) | 6.7 | (1.33) | 91.9 | (1.79) | 3.7 | (0.98) | 2.4 | ! | (0.86) | 2.0 | ! | (0.69) | ||||||
| Grade | ||||||||||||||||||||||||
| 9th | 82.0 | (1.11) | 6.2 | (0.47) | 8.2 | (0.63) | 3.6 | (0.42) | 94.6 | (0.65) | 2.7 | (0.41) | 2.2 | (0.33) | 0.5 | (0.11) | ||||||||
| 10th | 78.4 | (1.15) | 7.4 | (0.60) | 10.0 | (0.65) | 4.3 | (0.50) | 93.8 | (0.63) | 3.2 | (0.38) | 2.3 | (0.40) | 0.7 | (0.16) | ||||||||
| 11th | 74.5 | (1.44) | 8.0 | (0.59) | 12.9 | (0.82) | 4.5 | (0.50) | 93.8 | (0.70) | 3.2 | (0.47) | 2.3 | (0.35) | 0.7 | (0.16) | ||||||||
| 12th | 72.0 | (1.08) | 8.3 | (0.59) | 13.0 | (0.69) | 6.7 | (0.53) | 94.6 | (0.39) | 2.2 | (0.30) | 2.4 | (0.30) | 0.8 | (0.18) | ||||||||
| 20133 | ||||||||||||||||||||||||
| Total | 76.6 | (1.08) | 7.1 | (0.42) | 11.3 | (0.68) | 5.0 | (0.39) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Sex | ||||||||||||||||||||||||
| Male | 75.0 | (1.14) | 6.5 | (0.42) | 12.0 | (0.72) | 6.5 | (0.53) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Female | 78.1 | (1.28) | 7.8 | (0.59) | 10.7 | (0.77) | 3.4 | (0.36) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Race/ethnicity | ||||||||||||||||||||||||
| White | 79.6 | (1.36) | 6.3 | (0.63) | 9.7 | (0.75) | 4.4 | (0.42) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Black | 71.1 | (1.30) | 8.2 | (0.52) | 14.3 | (0.90) | 6.3 | (0.71) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Hispanic | 72.4 | (1.50) | 8.6 | (0.52) | 13.4 | (1.22) | 5.6 | (0.70) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Asian | 83.6 | (2.99) | 4.1 | (1.02) | 7.6 | (1.32) | 4.7 | ! | (2.03) | — | (†) | — | (†) | — | (†) | — | (†) | |||||||
| Pacific Islander | 76.6 | (7.35) | 4.9 | ! | (2.31) | 17.1 | ! | (5.82) | ‡ | (†) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||
| American Indian/Alaska Native | 64.5 | (6.37) | 8.8 | ! | (2.70) | 18.9 | (4.54) | 7.9 | ! | (2.77) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||
| Two or more races | 71.2 | (2.55) | 9.7 | (1.36) | 12.4 | (1.45) | 6.7 | (1.29) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Grade | ||||||||||||||||||||||||
| 9th | 82.3 | (1.13) | 6.3 | (0.59) | 8.6 | (0.70) | 2.8 | (0.38) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 10th | 76.5 | (1.89) | 7.2 | (0.65) | 11.3 | (1.35) | 5.0 | (0.81) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 11th | 74.5 | (1.37) | 7.6 | (0.68) | 12.0 | (0.85) | 6.0 | (0.56) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 12th | 72.3 | (1.58) | 7.6 | (0.68) | 13.8 | (1.00) | 6.4 | (0.63) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 20153 | ||||||||||||||||||||||||
| Total | 78.3 | (1.22) | 7.0 | (0.37) | 10.4 | (0.81) | 4.2 | (0.40) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Sex | ||||||||||||||||||||||||
| Male | 76.8 | (1.46) | 6.4 | (0.47) | 11.4 | (0.91) | 5.5 | (0.61) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Female | 79.9 | (1.33) | 7.6 | (0.44) | 9.6 | (0.87) | 2.9 | (0.31) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Race/ethnicity | ||||||||||||||||||||||||
| White | 80.1 | (1.67) | 6.9 | (0.45) | 9.6 | (1.20) | 3.5 | (0.44) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Black | 72.9 | (1.57) | 8.3 | (1.14) | 13.7 | (1.06) | 5.1 | (0.99) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Hispanic | 75.5 | (1.49) | 7.7 | (0.64) | 11.4 | (0.84) | 5.3 | (0.62) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Asian | 91.8 | (1.58) | 2.6 | ! | (0.87) | 4.1 | (0.87) | 1.5 | ! | (0.72) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||
| Pacific Islander | 82.6 | (4.88) | ‡ | (†) | 5.5 | ! | (2.03) | ‡ | (†) | — | (†) | — | (†) | — | (†) | — | (†) | |||||||
| American Indian/Alaska Native | 73.1 | (5.20) | 6.3 | ! | (2.47) | 12.1 | ! | (3.74) | ‡ | (†) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||
| Two or more races | 76.5 | (2.18) | 6.0 | (1.08) | 12.1 | (1.58) | 5.4 | (1.10) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Sexual orientation4 | ||||||||||||||||||||||||
| Heterosexual | 79.3 | (1.29) | 6.7 | (0.41) | 10.0 | (0.87) | 4.0 | (0.40) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Gay, lesbian, or bisexual | 68.0 | (1.64) | 10.3 | (1.31) | 15.7 | (1.28) | 6.0 | (1.00) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Not sure | 74.0 | (2.28) | 6.7 | (1.50) | 11.4 | (1.56) | 7.8 | (1.44) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Grade | ||||||||||||||||||||||||
| 9th | 84.8 | (0.98) | 5.5 | (0.56) | 7.3 | (0.56) | 2.4 | (0.34) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 10th | 80.0 | (1.87) | 6.1 | (0.73) | 10.0 | (1.18) | 3.9 | (0.59) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 11th | 75.2 | (1.27) | 7.7 | (0.55) | 12.9 | (1.13) | 4.3 | (0.55) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 12th | 72.4 | (1.93) | 8.9 | (0.61) | 12.2 | (1.33) | 6.4 | (0.82) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 20173 | ||||||||||||||||||||||||
| Total | 80.2 | (0.84) | 6.7 | (0.33) | 9.1 | (0.52) | 3.9 | (0.34) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Sex | ||||||||||||||||||||||||
| Male | 80.0 | (0.89) | 6.3 | (0.45) | 8.9 | (0.48) | 4.7 | (0.45) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Female | 80.4 | (1.14) | 7.1 | (0.45) | 9.3 | (0.73) | 3.1 | (0.44) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Race/ethnicity | ||||||||||||||||||||||||
| White | 82.3 | (1.12) | 6.1 | (0.51) | 8.1 | (0.62) | 3.5 | (0.46) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Black | 74.7 | (1.24) | 7.6 | (0.81) | 12.4 | (1.04) | 5.3 | (0.66) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Hispanic | 76.6 | (1.85) | 8.6 | (0.42) | 10.8 | (1.39) | 4.0 | (0.51) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Asian | 92.7 | (1.79) | 2.3 | (0.68) | 3.5 | (0.98) | ‡ | (†) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Pacific Islander | 83.9 | (4.08) | 7.1 | ! | (2.46) | 6.3 | ! | (2.64) | ‡ | (†) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||
| American Indian/Alaska Native | 70.3 | (6.30) | 3.0 | ! | (1.34) | 12.7 | ! | (4.28) | 14.1 | ! | (5.10) | — | (†) | — | (†) | — | (†) | — | (†) | |||||
| Two or more races | 79.7 | (2.27) | 6.9 | (1.14) | 8.7 | (1.41) | 4.7 | (1.17) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Sexual orientation4 | ||||||||||||||||||||||||
| Heterosexual | 80.9 | (0.83) | 6.6 | (0.36) | 9.0 | (0.50) | 3.5 | (0.35) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Gay, lesbian, or bisexual | 69.4 | (1.68) | 9.6 | (1.39) | 13.8 | (1.12) | 7.3 | (1.12) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| Not sure | 81.1 | (2.76) | 5.5 | (1.37) | 7.6 | (1.52) | 5.8 | ! | (2.00) | — | (†) | — | (†) | — | (†) | — | (†) | |||||||
| Grade | ||||||||||||||||||||||||
| 9th | 86.9 | (1.07) | 5.2 | (0.43) | 5.7 | (0.65) | 2.1 | (0.37) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 10th | 81.3 | (0.93) | 6.7 | (0.50) | 9.0 | (0.76) | 3.0 | (0.41) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 11th | 77.4 | (1.23) | 7.3 | (0.46) | 10.9 | (0.90) | 4.4 | (0.45) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| 12th | 74.3 | (1.43) | 8.0 | (0.70) | 11.5 | (1.03) | 6.2 | (0.73) | — | (†) | — | (†) | — | (†) | — | (†) | ||||||||
| —Not available. | ||||||||||||||||||||||||
| †Not applicable. | ||||||||||||||||||||||||
| !Interpret data with caution. The coefficient of variation (CV) for this estimate is between 30 and 50 percent. | ||||||||||||||||||||||||
| ‡Reporting standards not met. Either there are too few cases for a reliable estimate or the coefficient of variation (CV) is 50 percent or greater. | ||||||||||||||||||||||||
| 1 The term "anywhere" is not used in the Youth Risk Behavior Survey (YRBS) questionnaire; students were simply asked how many times during the previous 30 days they had used marijuana. | ||||||||||||||||||||||||
| 2 In the question about using marijuana at school, "on school property" was not defined for survey respondents. | ||||||||||||||||||||||||
| 3 Data on marijuana use at school were not collected from 2013 onward. | ||||||||||||||||||||||||
| 4 Students were asked which sexual orientation--"heterosexual (straight)," "gay or lesbian," "bisexual," or “not sure"--best described them. | ||||||||||||||||||||||||
| NOTE: Race categories exclude persons of Hispanic ethnicity. Detail may not sum to totals because of rounding. | ||||||||||||||||||||||||
| SOURCE: Centers for Disease Control and Prevention, Division of Adolescent and School Health, Youth Risk Behavior Surveillance System (YRBSS), 2011 through 2017. (This table was prepared August 2018.) |