Table 1.
Characteristics of participants identifying as designated drivers compared with non-designated drivers, 2007
| Designated driver (n=2280*) | Non- designated driver (n=6642*) |
|||
|---|---|---|---|---|
|
| ||||
| Number (Percent) | 95% Confidence interval |
Number (Percent) |
95 % Confidence interval |
|
| Gender | ||||
| Male | 1331 (59) | (57, 61) | 4071 (61) | (60, 62) |
| Female | 942 (41) | (39, 43) | 2551 (39) | (38, 40) |
| Age | ||||
| Under 21 | 326 (14) | (13, 16) | 842 (12) | (11, 13) |
| 21-34 | 1043 (47) ** | (45, 49) | 2300 (36) ** | (35, 37) |
| 35+ | 910 (39) ** | (37, 41) | 3495 (52) ** | (51, 53) |
| Race | ||||
| White | 1163 (37) ** | (35, 39) | 4154 (52) ** | (51, 53) |
| African- American |
437 (23) ** | (21, 25) | 994 (17) ** | (16, 18) |
| Hispanic | 485 (27) ** | (25, 29) | 967 (19) ** | (18, 20) |
| Asian | 73 (7) | (6, 8) | 224 (6) | (6, 7) |
| American Indian/Native Alaskan |
37 (1) | (1,1) | 75 (1) | (1, 1) |
| All other | 78 (5) | (4, 6) | 205 (5) | (4, 5) |
| BAC | ||||
| 0 | 1931 (87) ** | (85, 88) | 6098 (92) ** | (91, 93) |
| .005-.079 | 281 (11) ** | (10, 13) | 437 (7) ** | (6, 7) |
| .08+ | 66 (2) | (2, 3) | 104 (2) | (1, 2) |
| Time of the day | ||||
| Nighttime | 1894 (82) ** | (81, 84) | 4900 (74) ** | (73, 75) |
| Trip origination | ||||
| Bar/tavern/ club |
173 (6) ** | (5, 7) | 158 (2) ** | (2, 2) |
| Home (own home) |
455 (20) | (18, 22) | 1497 (21) | (20, 22) |
| Restaurant/ eating place |
236 (12) ** | (11, 14) | 524 (10) ** | (9, 10) |
| Someone else’s home |
565 (23) | (21, 24) | 1387 (20) | (20, 21) |
| Work | 299 (14) ** | (12, 15) | 1391 (21) ** | (20, 22) |
| Other | 548 (26) | (24, 27) | 1678 (26) | (25, 27) |
*
Although a total of 8,922 drivers were under study, some drivers did not provide complete information in the survey and were excluded from analyses.
**
p< 0.05 for comparison of designated driver to non-designated driver.