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Table 231.50. Percentage distribution of students in grades 9-12, by number of days they reported carrying a weapon anywhere or on school property during the previous 30 days and selected student characteristics: 2011
[Standard errors appear in parentheses]
Student characteristic Anywhere (including on school property)1 On school property2
0 days 1 day 2 to 5 days 6 or more days 0 days 1 day 2 to 5 days 6 or more days
1 2 3 4 5 6 7 8 9
Total 83.4 (0.65) 3.5   (0.18) 5.6   (0.27) 7.5   (0.45) 94.6 (0.35) 1.6   (0.16) 1.4   (0.12) 2.4   (0.23)
                                             
Sex                                            
Male 74.1 (1.07) 4.8   (0.23) 8.5   (0.46) 12.6   (0.82) 91.8 (0.59) 2.5   (0.26) 2.1   (0.21) 3.7   (0.39)
Female 93.2 (0.41) 2.1   (0.27) 2.6   (0.21) 2.2   (0.19) 97.7 (0.19) 0.7   (0.12) 0.6   (0.09) 1.0   (0.13)
                                             
Race/ethnicity3                                            
White 83.0 (1.05) 3.2   (0.21) 5.9   (0.48) 8.0   (0.68) 94.9 (0.40) 1.6   (0.21) 1.3   (0.16) 2.3   (0.33)
Black 85.8 (0.85) 3.1   (0.41) 5.2   (0.46) 6.0   (0.56) 95.4 (0.67) 1.7   (0.46) 1.2   (0.26) 1.6   (0.34)
Hispanic 83.8 (0.82) 4.4   (0.44) 5.2   (0.50) 6.7   (0.48) 94.2 (0.70) 1.4   (0.20) 2.0   (0.32) 2.4   (0.46)
Asian 90.9 (1.57) 1.9   (0.54) 1.8 ! (0.78) 5.4   (1.57) 95.7 (1.66)   (†)   (†)   (†)
Pacific Islander 79.3 (5.00) 3.0 ! (1.37) 7.6 ! (2.75) 10.1 ! (3.53) 89.1 (3.73) 6.5 ! (2.63)   (†) 4.4 ! (1.89)
American Indian/Alaska Native 72.4 (2.41) 5.3   (0.91) 12.1   (1.52) 10.2   (1.23) 92.5 (1.62) 2.7   (0.68) 3.2 ! (1.23) 1.6   (0.48)
Two or more races 76.3 (2.58) 5.6   (1.18) 7.1   (1.32) 10.9   (1.92) 92.5 (1.87) 1.6 ! (0.52) 1.2 ! (0.42) 4.7 ! (1.81)
                                             
Grade                                            
9th 82.7 (1.07) 4.3   (0.47) 6.5   (0.46) 6.5   (0.58) 95.2 (0.50) 1.8   (0.28) 1.3   (0.19) 1.8   (0.31)
10th 83.4 (0.89) 3.2   (0.36) 5.7   (0.50) 7.7   (0.62) 93.9 (0.72) 1.9   (0.41) 1.7   (0.25) 2.4   (0.39)
11th 83.8 (0.84) 3.3   (0.32) 5.5   (0.46) 7.5   (0.46) 95.3 (0.44) 1.3   (0.26) 1.2   (0.23) 2.2   (0.33)
12th 84.2 (0.90) 3.0   (0.36) 4.6   (0.40) 8.1   (0.84) 94.4 (0.51) 1.4   (0.31) 1.3   (0.24) 2.9   (0.40)
†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 days they carried a weapon during the past 30 days.
2 In the question asking students about carrying a weapon at school, "on school property" was not defined for survey respondents.
3 Race categories exclude persons of Hispanic ethnicity.
NOTE: Respondents were asked about carrying "a weapon such as a gun, knife, or club." 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. (This table was prepared September 2013.)
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National Center for Education Statistics - http://nces.ed.gov
U.S. Department of Education