Table 11. Percentage distributions of blood alcohol concentration (BAC) level among alcohol-involved drivers1, according to sex and age, United States, 1998 and 2004.
Sex, year,  and age BAC level2
0.01–.04 0.05–.07 0.08–.09 0.10–.14 0.15–.19 0.20–.24 0.25–.29 0.30+
Both Sexes
2004
Under 21 10.6 10.6 9.5 26.9 21.4 13.8 5.2 1.9
21–24 7.7 7.9 6.8 24.1 24.7 17.3 8.1 3.4
25–34 7.1 7.1 6.3 21.5 25.2 19.2 9.0 4.7
35–44 6.8 5.7 6.2 19.4 23.0 20.1 11.5 7.3
45+ 8.7 7.9 6.5 19.7 22.1 17.7 10.8 6.5
Total3 7.9 7.6 6.9 21.9 23.4 17.9 9.3 5.1
1998
Under 21 12.3 12.6 9.6 26.2 21.6 11.7 4.1 1.9
21–24 6.6 8.8 7.3 25.4 26.4 15.9 6.9 2.7
25–34 7.2 7.3 6.4 20.9 25.4 17.8 10.0 5.0
35–44 6.9 6.5 5.4 18.1 23.4 19.0 12.8 7.8
45+ 10.9 7.2 6.3 18.0 21.7 17.3 10.8 7.8
Total3 8.4 8.1 6.8 21.2 23.9 16.8 9.5 5.5
Male
2004
Under 21 10.3 9.9 9.0 26.6 22.2 14.8 5.3 1.9
21–24 7.4 7.7 7.0 24.1 25.1 17.2 8.0 3.4
25–34 6.9 6.9 6.3 21.6 25.4 19.3 8.9 4.7
35–44 6.8 5.5 6.0 19.9 22.9 20.0 11.5 7.4
45+ 8.3 7.9 6.5 19.5 21.8 18.2 11.4 6.5
Total3 7.7 7.4 6.8 21.9 23.6 18.2 9.4 5.1
1998
Under 21 12.3 12.1 9.9 26.7 21.2 11.6 4.1 2.1
21–24 6.2 8.7 7.3 25.2 26.6 16.3 7.0 2.7
25–34 7.0 7.0 6.3 21.0 25.8 17.7 10.2 5.2
35–44 6.5 6.0 5.5 18.1 24.0 19.2 12.8 8.0
45+ 10.3 6.8 6.1 17.6 21.6 18.0 11.2 8.3
Total3 8.1 7.7 6.7 21.1 24.1 17.0 9.6 5.6
Female
2004
Under 21 12.3 14.1 11.7 28.5 17.4 9.1 4.9 2.0
21–24 9.6 9.0 5.9 24.2 22.2 17.4 8.6 3.0
25–34 7.9 8.2 6.4 20.6 23.9 18.7 9.5 4.8
35–44 6.8 6.6 6.9 17.0 23.4 20.7 11.6 7.0
45+ 11.0 7.8 6.7 20.9 23.7 15.4 8.2 6.3
Total3 9.3 8.7 7.2 21.5 22.6 16.8 8.9 5.0
1998
Under 21 12.9 15.5 7.6 23.7 23.5 12.0 3.8 1.0
21–24 9.2 9.6 7.5 26.5 25.2 13.2 6.0 2.7
25–34 8.2 8.6 7.2 20.7 23.7 18.3 9.0 4.2
35–44 8.2 8.3 5.2 18.3 21.5 18.4 12.9 7.4
45+ 13.8 9.1 7.4 20.2 22.4 13.3 8.6 5.2
Total3 9.9 9.6 6.8 21.0 23.0 16.0 9.0 4.7

1  When alcohol tests were not done or test results are unknown, imputed BAC data provided by NHTSA are used.

2  BAC level in grams per deciliter.

3  Including drivers whose age is unknown.

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