Table 232.20.

Percentage distribution of students in grades 9-12, by number of days they reported using alcohol anywhere or on school property during the previous 30 days and selected student characteristics: Selected years, 2009 through 2013

[Standard errors appear in parentheses]
Year and student characteristic	Anywhere (including on school property)1											On school property2
	0 days		1 or 2 days			3 to 29 days			All 30 days			0 days		1 or 2 days			3 to 29 days			All 30 days
1	2		3			4			5			6		7			8			9
2009
Total	58.2	(0.80)	20.5		(0.40)	20.5		(0.73)	0.8		(0.09)	95.5	(0.29)	2.8		(0.21)	1.3		(0.14)	0.4		(0.07)
Sex
Male	59.2	(1.11)	17.9		(0.59)	21.7		(0.90)	1.3		(0.19)	94.7	(0.41)	3.0		(0.27)	1.7		(0.20)	0.6		(0.14)
Female	57.1	(0.85)	23.4		(0.73)	19.2		(0.74)	0.3		(0.05)	96.4	(0.34)	2.6		(0.26)	0.9		(0.16)	0.1	!	(0.03)
Race/ethnicity3
White	55.3	(1.16)	20.9		(0.50)	23.2		(1.10)	0.6		(0.10)	96.7	(0.27)	2.0		(0.20)	1.0		(0.14)	0.2		(0.06)
Black	66.6	(1.45)	18.5		(0.80)	14.0		(1.04)	0.9		(0.25)	94.6	(0.59)	3.0		(0.36)	1.8		(0.32)	0.5	!	(0.22)
Hispanic	57.1	(1.43)	21.9		(0.82)	19.6		(1.12)	1.3		(0.22)	93.1	(0.70)	4.4		(0.46)	1.9		(0.37)	0.6		(0.16)
Asian	81.7	(1.60)	11.5		(1.90)	5.9		(1.22)	0.9	!	(0.44)	97.1	(0.65)	1.4	!	(0.47)	0.9	!	(0.43)	‡		(†)
Pacific Islander	65.2	(4.36)	12.4		(2.86)	22.0		(3.42)	‡		(†)	90.0	(2.34)	5.9		(1.68)	3.8	!	(1.56)	‡		(†)
American Indian/Alaska Native	57.2	(5.43)	17.0	!	(5.28)	24.7		(5.33)	‡		(†)	95.7	(1.58)	3.5	!	(1.45)	‡		(†)	#		(†)
Two or more races	55.7	(2.42)	26.8		(2.58)	16.1		(1.90)	1.4	!	(0.56)	93.3	(1.37)	4.7		(0.98)	1.6	!	(0.64)	‡		(†)
Grade
9th	68.5	(1.28)	17.9		(1.00)	12.9		(0.64)	0.7		(0.16)	95.6	(0.37)	3.0		(0.28)	1.0		(0.17)	0.4	!	(0.13)
10th	59.4	(1.42)	19.5		(0.79)	20.3		(1.27)	0.8		(0.21)	95.2	(0.46)	2.9		(0.35)	1.5		(0.25)	0.4	!	(0.15)
11th	54.3	(2.05)	21.7		(1.41)	23.2		(1.36)	0.8		(0.13)	95.4	(0.44)	2.9		(0.40)	1.4		(0.24)	0.3		(0.09)
12th	48.3	(1.37)	23.6		(0.95)	27.3		(1.55)	0.8		(0.19)	95.9	(0.44)	2.3		(0.29)	1.5		(0.25)	0.3	!	(0.12)
2011
Total	61.3	(0.75)	19.4		(0.62)	18.3		(0.47)	0.9		(0.11)	94.9	(0.33)	3.3		(0.23)	1.3		(0.15)	0.5		(0.07)
Sex
Male	60.5	(0.93)	18.5		(0.68)	19.5		(0.65)	1.5		(0.19)	94.6	(0.43)	3.1		(0.26)	1.5		(0.21)	0.8		(0.14)
Female	62.1	(0.91)	20.5		(0.74)	17.1		(0.63)	0.3		(0.08)	95.3	(0.35)	3.4		(0.29)	1.1		(0.16)	0.1	!	(0.04)
Race/ethnicity3
White	59.7	(0.97)	19.5		(0.83)	20.1		(0.62)	0.7		(0.13)	96.0	(0.38)	2.8		(0.29)	0.9		(0.12)	0.3		(0.06)
Black	69.5	(1.40)	17.5		(1.06)	12.1		(0.97)	0.9		(0.21)	94.9	(0.50)	3.2		(0.41)	1.4		(0.28)	0.5	!	(0.18)
Hispanic	57.7	(1.38)	21.5		(0.75)	19.4		(0.94)	1.4		(0.25)	92.7	(0.68)	4.3		(0.31)	2.2		(0.45)	0.7		(0.17)
Asian	74.4	(2.90)	16.7		(2.86)	7.3		(1.42)	1.6	!	(0.73)	96.5	(1.21)	2.2	!	(0.96)	‡		(†)	‡		(†)
Pacific Islander	61.6	(6.40)	15.6		(3.98)	21.9		(4.87)	‡		(†)	91.7	(3.61)	3.6	!	(1.62)	‡		(†)	‡		(†)
American Indian/Alaska Native	55.1	(2.26)	23.8		(2.23)	20.1		(1.51)	‡		(†)	79.1	(4.15)	15.0		(3.14)	5.3		(0.96)	‡		(†)
Two or more races	63.1	(3.08)	19.6		(2.94)	15.0		(1.88)	2.3	!	(0.96)	94.2	(1.32)	3.3		(0.86)	‡		(†)	1.6	!	(0.74)
Grade
9th	70.2	(1.35)	17.8		(0.99)	11.2		(0.95)	0.7		(0.18)	94.6	(0.56)	3.7		(0.41)	1.4		(0.31)	0.4		(0.09)
10th	64.3	(1.37)	19.2		(1.11)	15.8		(0.66)	0.6		(0.15)	95.6	(0.51)	2.8		(0.40)	1.2		(0.24)	0.4		(0.11)
11th	57.3	(1.28)	21.1		(0.87)	20.6		(1.31)	1.1		(0.21)	94.8	(0.56)	3.2		(0.39)	1.3		(0.26)	0.7		(0.16)
12th	51.6	(1.29)	20.1		(0.93)	27.1		(1.25)	1.1		(0.24)	94.9	(0.48)	3.5		(0.38)	1.3		(0.26)	0.3	!	(0.10)
20134
Total	65.1	(1.08)	17.3		(0.56)	16.9		(0.78)	0.8		(0.12)	—	(†)	—		(†)	—		(†)	—		(†)
Sex
Male	65.6	(1.30)	15.7		(0.75)	17.4		(0.90)	1.2		(0.19)	—	(†)	—		(†)	—		(†)	—		(†)
Female	64.5	(1.39)	18.8		(0.98)	16.3		(0.88)	0.3		(0.09)	—	(†)	—		(†)	—		(†)	—		(†)
Race/ethnicity3
White	63.7	(1.63)	17.6		(0.87)	18.0		(1.11)	0.6		(0.13)	—	(†)	—		(†)	—		(†)	—		(†)
Black	70.4	(1.65)	15.5		(0.90)	13.6		(1.46)	0.6		(0.16)	—	(†)	—		(†)	—		(†)	—		(†)
Hispanic	62.5	(2.11)	18.0		(1.30)	18.3		(1.27)	1.2		(0.35)	—	(†)	—		(†)	—		(†)	—		(†)
Asian	78.3	(1.80)	14.8		(2.26)	6.3		(1.27)	‡		(†)	—	(†)	—		(†)	—		(†)	—		(†)
Pacific Islander	73.2	(5.84)	18.2		(4.71)	7.5		(2.24)	‡		(†)	—	(†)	—		(†)	—		(†)	—		(†)
American Indian/Alaska Native	66.6	(5.13)	14.8		(4.41)	17.4	!	(5.62)	‡		(†)	—	(†)	—		(†)	—		(†)	—		(†)
Two or more races	63.9	(2.87)	18.7		(1.71)	16.4		(2.12)	1.0	!	(0.42)	—	(†)	—		(†)	—		(†)	—		(†)
Grade
9th	75.6	(1.13)	13.6		(0.89)	10.0		(0.85)	0.7		(0.22)	—	(†)	—		(†)	—		(†)	—		(†)
10th	69.1	(1.84)	15.9		(1.17)	14.5		(1.22)	0.6		(0.16)	—	(†)	—		(†)	—		(†)	—		(†)
11th	60.8	(1.52)	18.6		(1.01)	19.7		(1.26)	0.9		(0.23)	—	(†)	—		(†)	—		(†)	—		(†)
12th	53.2	(1.85)	21.5		(0.93)	24.6		(1.31)	0.7		(0.17)	—	(†)	—		(†)	—		(†)	—		(†)

—Not available.

†Not applicable.

#Rounds to zero.

!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 during the previous 30 days they had at least one drink of alcohol.

2 In the question about drinking alcohol at school, "on school property" was not defined for survey respondents.

3 Race categories exclude persons of Hispanic ethnicity.

4 Data on alcohol use at school were not collected in 2013.

NOTE: 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 2013. (This table was prepared September 2014.)