Table 228.42.

Percentage distribution of students in grades 9-12, by number of times they reported being threatened or injured with a weapon on school property during the previous 12 months and selected student characteristics: Selected years, 2009 through 2017

[Standard errors appear in parentheses]
Student characteristic	Total		0 times			1 time			2 or 3 times			4 to 11 times			12 or more times
1	2		3			4			5			6			7
Total
2009	100.0	(†)	92.3		(0.37)	3.2		(0.18)	1.9		(0.15)	1.4		(0.11)	1.2		(0.13)
2011	100.0	(†)	92.6		(0.31)	3.1		(0.17)	1.9		(0.15)	1.4		(0.13)	1.0		(0.12)
2013	100.0	(†)	93.1		(0.38)	3.0		(0.22)	1.7		(0.14)	1.3		(0.14)	0.9		(0.11)
2015
Total	100.0	(†)	94.0		(0.38)	2.7		(0.22)	1.5		(0.16)	1.0		(0.14)	0.8		(0.12)
Sex
Male	100.0	(†)	93.0		(0.50)	3.1		(0.30)	1.6		(0.19)	1.3		(0.21)	1.0		(0.18)
Female	100.0	(†)	95.4		(0.42)	2.3		(0.23)	1.3		(0.23)	0.6		(0.12)	0.4	!	(0.12)
Race/ethnicity
White	100.0	(†)	95.1		(0.50)	2.4		(0.24)	1.5		(0.25)	0.6		(0.12)	0.4		(0.10)
Black	100.0	(†)	92.1		(1.10)	4.1		(0.80)	1.6	!	(0.47)	1.4	!	(0.51)	0.9	!	(0.34)
Hispanic	100.0	(†)	93.4		(0.65)	2.6		(0.36)	1.4		(0.27)	1.4		(0.24)	1.2		(0.19)
Asian	100.0	(†)	96.4		(1.40)	‡		(†)	0.5	!	(0.25)	‡		(†)	‡		(†)
Pacific Islander	100.0	(†)	79.5		(7.28)	‡		(†)	‡		(†)	‡		(†)	‡		(†)
American Indian/Alaska Native	100.0	(†)	91.8		(2.69)	‡		(†)	3.1	!	(1.18)	‡		(†)	‡		(†)
Two or more races	100.0	(†)	92.0		(1.82)	3.8	!	(1.37)	1.7	!	(0.71)	1.2	!	(0.52)	1.3	!	(0.60)
Sexual orientation1
Heterosexual	100.0	(†)	94.9		(0.36)	2.6		(0.24)	1.2		(0.17)	0.8		(0.12)	0.5		(0.10)
Gay, lesbian, or bisexual	100.0	(†)	90.0		(1.19)	4.3		(0.71)	2.7		(0.71)	2.3		(0.63)	0.7		(0.21)
Not sure	100.0	(†)	87.4		(2.01)	3.1	!	(0.98)	4.3	!	(1.40)	‡		(†)	3.5	!	(1.42)
Grade
9th	100.0	(†)	92.8		(0.51)	3.5		(0.36)	2.1		(0.34)	0.9		(0.15)	0.6		(0.15)
10th	100.0	(†)	93.8		(0.57)	2.9		(0.35)	1.3		(0.26)	1.3		(0.28)	0.7		(0.15)
11th	100.0	(†)	94.5		(0.68)	2.5		(0.45)	1.1		(0.20)	1.1	!	(0.33)	0.8		(0.23)
12th	100.0	(†)	95.6		(0.69)	1.8		(0.34)	1.3		(0.29)	0.7	!	(0.23)	0.6		(0.17)
2017
Total	100.0	(†)	94.0		(0.33)	2.7		(0.26)	1.5		(0.14)	1.0		(0.11)	0.8		(0.10)
Sex
Male	100.0	(†)	92.2		(0.39)	3.2		(0.29)	2.0		(0.23)	1.3		(0.15)	1.3		(0.17)
Female	100.0	(†)	95.9		(0.46)	2.2		(0.35)	1.0		(0.14)	0.6		(0.15)	0.2		(0.07)
Race/ethnicity
White	100.0	(†)	95.0		(0.51)	2.6		(0.41)	1.3		(0.17)	0.7		(0.15)	0.5		(0.12)
Black	100.0	(†)	92.2		(0.66)	2.9		(0.47)	2.2		(0.43)	1.6		(0.43)	1.1	!	(0.33)
Hispanic	100.0	(†)	93.9		(0.45)	2.5		(0.32)	1.5		(0.24)	1.1		(0.22)	1.0		(0.25)
Asian	100.0	(†)	95.7		(0.89)	2.0	!	(0.81)	0.3	!	(0.15)	‡		(†)	‡		(†)
Pacific Islander	100.0	(†)	93.0		(2.33)	‡		(†)	‡		(†)	‡		(†)	‡		(†)
American Indian/Alaska Native	100.0	(†)	86.3		(3.57)	‡		(†)	4.4	!	(2.07)	1.7	!	(0.72)	‡		(†)
Two or more races	100.0	(†)	92.0		(1.23)	3.7		(0.70)	2.0	!	(0.85)	1.5	!	(0.68)	0.7	!	(0.35)
Sexual orientation1
Heterosexual	100.0	(†)	94.6		(0.30)	2.5		(0.26)	1.4		(0.13)	0.8		(0.11)	0.6		(0.10)
Gay, lesbian, or bisexual	100.0	(†)	90.6		(1.08)	4.0		(0.67)	2.6		(0.67)	1.7		(0.37)	1.1	!	(0.39)
Not sure	100.0	(†)	88.9		(1.84)	3.4		(0.99)	1.3	!	(0.57)	3.2	!	(1.17)	3.2	!	(1.09)
Grade
9th	100.0	(†)	93.2		(0.60)	3.5		(0.49)	1.9		(0.28)	1.0		(0.24)	0.5		(0.12)
10th	100.0	(†)	93.2		(0.60)	3.4		(0.42)	1.4		(0.28)	1.1		(0.23)	0.8		(0.20)
11th	100.0	(†)	94.9		(0.57)	2.0		(0.30)	1.4		(0.29)	0.8		(0.23)	0.9		(0.19)
12th	100.0	(†)	95.4		(0.52)	1.7		(0.31)	1.3		(0.26)	1.0		(0.21)	0.7		(0.18)

†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 Students were asked which sexual orientation--"heterosexual (straight)," "gay or lesbian," "bisexual," or “not sure"--best described them.

NOTE: Survey respondents were asked about being threatened or injured "with a weapon such as a gun, knife, or club on school property." "On school property" was not defined for respondents. 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), 2009 through 2017. (This table was prepared July 2018.)