Skip to main content
. 2020 Aug 21;69(1):77–83. doi: 10.15585/mmwr.su6901a9

TABLE 1. Unweighted number and unadjusted weighted prevalence estimates of high school students* who engaged in transportation risk behaviors, by selected characteristics — Youth Risk Behavior Survey, United States, 2019.

Characteristic Total
% (95% CI) Did not always wear a seat belt
Rode with a driver who had been drinking alcohol**
Drove when they had been drinking alcohol**,††
Texted or e-mailed while driving††,§§
No. No.§ % (95% CI) No.§ % (95% CI) No.§ % (95% CI) No.§ % (95% CI)
Total
13,677
NA
4,852
43.1 (40.2–45.9)
2,214
16.7 (15.2–18.2)
423
5.4 (4.5–6.5)
2,784
39.0 (36.4–41.7)
Age (yrs)¶¶
14
1,699
11.9 (10.9–13.0)
573
45.7 (40.9–50.5)
276
16.4 (13.9–19.1)
14
2.7 (0.9–7.5)
51
15.5 (11.2–21.0)
15
3,473
24.8 (23.5–26.0)
1,283
46.9 (42.7–51.1)
557
16.7 (14.6–19.1)
49
2.6 (1.7–3.9)
211
15.5 (11.8–20.2)
16
3,628
25.6 (24.5–26.7)
1,318
43.5 (39.5–47.6)
564
16.0 (13.8–18.5)
112
4.0 (2.8–5.6)
730
30.5 (25.8–35.5)
17
3,102
23.7 (22.5–24.8)
1,045
38.9 (35.6–42.4)
481
16.0 (13.8–18.5)
138
5.9 (4.3–7.9)
1,072
50.9 (46.5–55.3)
≥18
1,616
13.7 (12.6–14.9)
574
39.4 (36.6–42.4)
279
18.4 (15.4–21.7)
91
8.9 (6.4–12.4)
672
59.5 (54.9–63.9)
Sex
Male
6,641
50.6 (49.1–52.1)
2,369
43.3 (40.0–46.7)
1,015
15.6 (14.1–17.2)
257
7.0 (5.6–8.8)
1,434
39.6 (36.6–42.6)
Female
6,885
49.4 (47.9–50.9)
2,440
42.7 (39.7–45.7)
1,141
17.5 (15.6–19.5)
149
3.6 (2.8–4.6)
1,311
38.4 (35.5–41.4)
Race/Ethnicity***
White, non-Hispanic
6,668
51.2 (46.4–56.0)
2,079
36.6 (33.8–39.6)
986
15.1 (13.5–16.8)
207
5.1 (3.9–6.5)
1,608
43.9 (40.4–47.5)
Black, non-Hispanic
2,040
12.2 (10.2–14.6)
901
61.7 (56.3–66.8)
325
15.9 (13.3–18.7)
47
4.1 (2.6–6.4)
312
29.5 (24.3–35.2)
Hispanic
3,038
26.1 (21.8–30.9)
1,237
48.2 (45.0–51.4)
605
20.8 (18.7–23.1)
107
6.6 (5.2–8.5)
562
35.2 (30.8–39.8)
Academic grades †††
Mostly As or Bs
9,785
75.1 (72.2–77.8)
3,152
38.8 (36.0–41.6)
1,449
15.3 (13.8–17.0)
248
4.7 (3.8–5.9)
2,070
40.4 (37.8–43.1)
Mostly Cs, Ds, or Fs
2,677
20.6 (18.3–23.2)
1,226
57.0 (53.4–60.5)
547
20.1 (17.7–22.8)
133
7.4 (5.7–9.6)
548
37.1 (32.2–42.4)
Sexual identity
Heterosexual
10,853
84.4 (83.4–85.3)
3,741
42.1 (39.1–45.2)
1,656
15.7 (14.1–17.4)
322
5.2 (4.2–6.4)
2,268
39.6 (36.6–42.6)
Lesbian, gay, or bisexual
1,531
11.2 (10.4–12.0)
564
44.7 (39.4–50.1)
283
19.2 (16.0–22.9)
39
4.7 (2.4–9.0)
257
34.7 (28.4–41.7)
Not sure 591 4.5 (3.9–5.0) 208 43.3 (37.6–49.2) 125 21.9 (16.8–28.1) 24 9.5 (4.8–17.7) 93 31.7 (22.0–43.4)

Abbreviations: CI = confidence interval; NA = not applicable.

* Unadjusted weighted prevalence estimates and corresponding 95% CIs were calculated and are presented in the table. Posthoc t-tests were used to assess between-group differences. Differences were considered statistically significant if the t-test p value was <0.05. Statistical significance is not indicated in the table due to the large number of different pairwise comparisons; however, all significant differences are described in the results.

The unweighted number of students for each characteristic only includes students who selected a response on the survey question pertaining to that characteristic. Students who did not select a response were not included in the analysis for that characteristic but were retained in the analytic sample for every question on which they provided a response.

§ Students who selected any response on the survey question pertaining to a risk behavior were included in the analysis for that behavior; however, only the unweighted numbers of students who engaged in that behavior are presented in the table. Students who did not select a response were not included in the analysis for that behavior but were retained in the analytic sample for every question on which they provided a response.

Most of the time, sometimes, rarely, or never wore a seat belt when riding in a car driven by someone else.

** ≥1 time during the 30 days before the survey.

†† Among students who had driven a car or other vehicle during the 30 days before the survey.

§§ On ≥1 day during the 30 days before the survey.

¶¶ The total column percentages for age do not add up to 100% because students aged <14 years are not presented because they cannot drive legally in any U.S. state.

*** The total column percentages for race/ethnicity do not add up to 100% because other non-Hispanic race categories are not presented.

††† The total column percentages for academic grades do not add up to 100% because students who were not sure about their grades or who responded “none of these grades” are not presented.