Table 1 Characteristics of included respondents subject to each jurisdiction’s helmet law
Dallas | San Diego | Miami-Dade & Broward Counties | |
|---|---|---|---|
% (CI) | % (CI) | % (CI) | |
Characteristics | |||
Female sex, % (CI) | 44.4 (43.2, 45.7) | 41.9 (40.6, 43.2) | 46.3 (45.1, 47.6) |
Race/Ethnicity, % (CI) | |||
White, non-Latino | 10.8 (9.8, 12.0) | 33.7 (32.2, 35.2) | 23.6 (22.0, 25.3) |
African American, non-Latino | 40.6 (38.8, 42.4) | 13.9 (12.9, 14.9) | 28.7 (26.8, 30.7) |
Latino | 48.6 (46.8, 50.4) | 37.9 (36.4, 39.4) | 47.7 (45.7, 49.7) |
Asian | --- | 14.5 (13.6, 15.4) | --- |
Age, % (CI) | |||
14 and under | 12.3 (10.8, 14.0) | 18.9 (17.1, 20.7) | 27.6 (26.3, 29.0) |
15 years old | 31.7 (29.6, 34.0) | 30.7 (28.9, 32.4) | 72.4 (71.0, 73.7) |
16 years old | 26.6 (24.5, 28.8) | 28.1 (26.4, 29.9) | --- |
17 years old | 18.5 (16.7, 20.5) | 22.4 (20.5, 24.4) | --- |
18 and over | 10.9 (9.4, 12.5) | --- | --- |
Sample Sizes, n | 11,514 | 9871 | 10,865 |
1991 | 1894 | --- | 961 |
1993 | 1847 | 1047 | 809 |
1995 | 1776 | 1072 | 849 |
1997 | 875 | 1309 | 935 |
1999 | 934 | 898 | 987 |
2001 | 951 | 873 | 875 |
2003 | 967 | 798 | 948 |
2005 | 631 | 743 | 963 |
2007 | 561 | 743 | 686 |
2009 | 466 | 886 | 867 |
2011 | 612 | 823 | 1088 |
2013 | --- | 679 | 897 |