National Institute on Alcohol Abuse and Alcoholism (NIAAA)

Table 11

**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
Sex, year, and age	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

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