TABLE 1—
Prevalence and Trends of School-Related Victimization Among Students in Grades 9 Through 12, by Sexual Identity: Massachusetts Youth Risk Behavior Surveys, 1995–2015
| Did Not Go to School Because of Safety Concerns,a Prevalence (95% CI) |
Threatened or Injured With a Weapon on School Property,b Prevalence (95% CI) |
Bullied on School Property,c Prevalence (95% CI) |
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| Year | Overall | Heterosexual | LGB | Overall | Heterosexual | LGB | Overall | Heterosexual | LGB |
| 1995 | 5.6 (4.4, 7.2) | 4.3 (3.4, 5.5) | 25.0 (15.4, 37.8) | 7.8 (6.6, 9.1) | 6.5 (5.5, 7.7) | 32.9 (24.3, 42.7) | . . . | . . . | . . . |
| 1997 | 4.6 (3.9, 5.6) | 3.9 (3.2, 4.8) | 22.2 (13.5, 34.3) | 7.5 (6.6, 8.5) | 6.5 (5.7, 7.3) | 31.2 (20.2, 44.8) | . . . | . . . | . . . |
| 1999 | 6.4 (5.0, 8.0) | 5.3 (4.1, 7.0) | 20.0 (13.0, 29.4) | 8.6 (7.7, 9.6) | 7.6 (6.8, 8.5) | 24.4 (16.2, 35.1) | . . . | . . . | . . . |
| 2001 | 8.1 (6.1, 10.6) | 7.7 (5.7, 10.3) | 17.6 (11.9, 25.4) | 8.2 (7.2, 9.3) | 7.6 (6.7, 8.7) | 17.4 (11.8, 25.0) | . . . | . . . | . . . |
| 2003 | 4.6 (4.0, 5.3) | 3.9 (3.3, 4.5) | 16.3 (10.4, 24.6) | 6.3 (5.3, 7.4) | 5.4 (4.6, 6.3) | 19.3 (13.3, 27.2) | . . . | . . . | . . . |
| 2005 | 4.0 (3.4, 4.7) | 3.3 (2.7, 4.0) | 16.5 (11.4, 23.1) | 5.4 (4.6, 6.4) | 5.0 (4.2, 6.1) | 10.3 (5.5, 18.7) | . . . | . . . | . . . |
| 2007 | 4.7 (3.9, 5.7) | 3.8 (3.0, 4.9) | 13.0 (9.4, 17.7) | 5.3 (4.5, 6.3) | 4.3 (3.5, 5.3) | 18.7 (13.4, 25.5) | . . . | . . . | . . . |
| 2009 | 4.0 (3.1, 5.2) | 3.1 (2.2, 4.2) | 13.9 (8.4, 22.2) | 7.0 (6.0, 8.2) | 6.2 (5.1, 7.5) | 17.3 (12.4, 23.7) | 19.4 (17.7, 21.2) | 17.3 (15.7, 19.0) | 42.3 (35.6, 49.3) |
| 2011 | 4.8 (3.9, 6.1) | 4.2 (3.3, 5.5) | 9.9 (6.2, 15.6) | 6.8 (5.6, 8.2) | 5.6 (4.5, 7.1) | 15.2 (10.5, 21.5) | 18.1 (16.1, 20.2) | 16.4 (14.5, 18.5) | 33.5 (26.7, 41.1) |
| 2013 | 3.6 (2.9, 4.5) | 2.9 (2.2, 3.8) | 15.3 (9.6, 23.4) | 4.3 (3.7, 5.2) | 3.9 (3.2, 4.7) | 14.0 (10.0, 19.3) | 16.6 (14.7, 18.6) | 15.5 (13.6, 17.6) | 37.7 (29.9, 46.2) |
| 2015 | 4.8 (4.0, 5.8) | 3.8 (2.9, 4.8) | 13.4 (8.9, 19.7) | 4.1 (3.2, 5.1) | 3.5 (2.7, 4.5) | 6.7 (3.6, 12.3) | 15.6 (14.0, 17.3) | 13.8 (12.3, 15.4) | 34.3 (27.4, 41.9) |
| Linear Bd (SE) | −0.697 (0.147) | −0.702 (0.166) | −0.798 (0.347) | −0.879 (0.098) | −0.837 (0.104) | −1.275 (0.310) | −1.041 (0.286) | −0.867 (0.294) | −0.902 (0.789) |
| P B | < .001 | < .001 | .022 | < .001 | < .001 | < .001 | < .001 | .003 | .25 |
| Conclusionse | Linear decrease | Linear decrease | Linear decrease | Linear decrease | Linear decrease | Linear decrease | Linear decrease | Linear decrease | No change |
Note. CI = confidence interval; LGB = lesbian, gay, or bisexual. Ellipses indicate that data were not available for that year.
Did not go to school on 1 or more days during the 30 days before the survey because they felt they would be unsafe at school or on the way to or from school.
Were threatened or injured with a weapon (e.g., a gun, knife, or club) on school property 1 or more times during the 12 months before the survey.
Were bullied on school property during the 12 months before the survey.
Parameter estimate for the B associated with the linear time component regressed on the victimization outcome, stratified by sexual identity and controlled for sex and race/ethnicity.
Interpretation of the linear time components.