Table 1 Characteristics of fatally-injured drivers who died within 1 h of crashing, by drug test results, aggregated prevalence from 2007 to 2017
From: Positive drug test trends in fatally-injured drivers in the United States from 2007 to 2017
Demographic Characteristicse | Tested Positive | Tested Negative | Otherd | Total | Chi-square test |
|---|---|---|---|---|---|
n (%a) | n (%a) | n (%a) | n (%b) | χ2, d.f., p-value | |
28,756 (28.1) | 49,384 (48.3) | 24,081 (23.6) | 102,221 (100.0) | Â | |
Age | 1126.3,6,<.0001 | ||||
 16–20 | 2433 (25.7) | 4876 (51.4) | 2176 (22.9) | 9485 (9.3) |  |
 21–44 | 15,893 (31.6) | 23,275 (46.3) | 11,107 (22.1) | 50,275 (49.2) |  |
 45–64 | 8241 (27.7) | 14,317 (48.2) | 7150 (24.1) | 29,708 (29.1) |  |
 65+ | 2189 (17.2) | 6916 (54.2) | 3648 (28.6) | 12,753 (12.5) |  |
Sex | 21.6,2,<.0001 | ||||
 Male | 22,609 (28.4) | 38,470 (48.3) | 18,526 (23.3) | 79,627 (77.9) |  |
 Female | 6142 (27.2) | 10,904 (48.3) | 5548 (24.6) | 22,594 (22.1) |  |
Race | 405.9,6,<.0001 | ||||
 Non-Hispanic White | 20,572 (30.2) | 31,891 (46.8) | 15,747 (23.1) | 68,210 (72.3) |  |
 Non-Hispanic Black | 3011 (26.6) | 5535 (48.8) | 2795 (24.7) | 11,341 (12.0) |  |
 Hispanic | 2760 (24.3) | 6292 (55.5) | 2292 (20.2) | 11,344 (12.0) |  |
 Other Race | 855 (24.8) | 1884 (54.7) | 706 (20.5) | 3445 (3.7) |  |
Died at Scene/En Route | 23.8,6, <.01 | ||||
 Not Applicablec | 5039 (28.0) | 8843 (49.1) | 4134 (23.0) | 18,016 (17.6) |  |
 Died at Scene | 23,420 (28.1) | 40,105 (48.2) | 19,774 (23.7) | 83,299 (81.5) |  |
 Died En Route | 289 (33.2) | 415 (47.7) | 166 (19.1) | 870 (0.9) |  |
Blood Alcohol Concentration | 867.2,6,<.0001 | ||||
 0 | 15,601 (30.5) | 30,879 (60.4) | 4326 (9.1) | 51,106 (58.8) |  |
 0.001–0.079 | 1978 (41.6) | 2279 (47.9) | 502 (10.6) | 4759 (5.5) |  |
  ≥ 0.08 | 10,742 (34.6) | 15,872 (51.1) | 4430 (14.3) | 31,044 (35.7) |  |
Month of Death | 163.2,22,<.0001 | ||||
 1 | 2069 (28.1) | 3614 (49.1) | 1675 (22.8) | 7358 (7.2) |  |
 2 | 1896 (28.5) | 3299 (49.6) | 1461 (22.0) | 6656 (6.5) |  |
 3 | 2241 (28.1) | 3972 (49.7) | 1773 (22.2) | 7986 (7.8) |  |
 4 | 2440 (28.8) | 4157 (49.1) | 1876 (22.1) | 8473 (8.3) |  |
 5 | 2641 (28.7) | 4518 (49.1) | 2041 (22.2) | 9200 (9.0) |  |
 6 | 2609 (28.8) | 4362 (48.1) | 2103 (23.2) | 9074 (8.9) |  |
 7 | 2712 (28.2) | 4697 (48.8) | 2209 (23.0) | 9618 (9.4) |  |
 8 | 2694 (27.7) | 4767 (49.0) | 2266 (23.3) | 9727 (9.5) |  |
 9 | 2562 (28.5) | 4264 (47.5) | 2149 (23.9) | 8975 (8.8) |  |
 10 | 2476 (27.5) | 4334 (48.2) | 2179 (24.2) | 8989 (8.8) |  |
 11 | 2281 (27.8) | 3796 (46.2) | 2134 (26.0) | 8211 (8.0) |  |
 12 | 2135 (26.8) | 3604 (45.3) | 2215 (27.8) | 7954 (7.8) |  |