Table 1.
Descriptive statistics of D2, D3_1, and D3_other distributions versus NOPUS distribution, 2015–2017
| D2a | D3_1b | D3_otherc | NOPUS | Percentage point Difference to NOPUS | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Variables | |||||||||||
| n | % (95% CL) | n | % (95% CL) | n | % (95% CL) | nd | % (95% CLe) | D2 | D3_1 | D3_other | |
| Gender | |||||||||||
| Male | 6208 | 62.1 (61.1, 63.0) | 1488 | 60.0 (58.0, 61.9) | 1542 | 58.1 (56.2, 59.9) | 25,363,928 | 60.0 (58.7, 61.3) | 2.1 | 0.0 | 2.0 |
| Female | 3789 | 37.9 (37.0, 38.9) | 993 | 40.0 (38.1, 42.0) | 1114 | 41.9 (40.1, 43.8) | 16,895,948 | 40.0 (38.7, 41.3) | 2.1 | 0.0 | 2.0 |
| Age group | |||||||||||
| 16–24 years | 1343 | 13.4 (12.8, 14.1) | 338 | 13.6 (12.3, 15.0) | 318 | 12.0 (10.8, 13.3) | 3,629,053 | 8.6 (7.6, 9.5) | 4.8 | 5.0 | 3.4 |
| 25–69 years | 7335 | 73.4 (72.5, 74.2) | 1880 | 75.8 (74.1, 77.4) | 2151 | 81.0 (79.4, 82.4) | 35,874,004 | 84.9 (83.6, 86.2) | 11.5 | 9.1 | 3.9 |
| > 70 years | 1319 | 13.2 (12.5, 13.9) | 263 | 10.6 (9.4, 11.9) | 187 | 7.0 (6.1, 8.1) | 2,756,818 | 6.5 (5.8, 7.3) | 6.7 | 4.1 | 0.5 |
| Vehicle types | |||||||||||
| Passenger cars | 7188 | 71.9 (71, 72.8) | 1923 | 77.5 (75.8, 79.1) | 2122 | 79.9 (78.3, 81.4) | 34,267,419 | 81.1 (79.7, 82.5) | 9.2 | 3.6 | 1.2 |
| Pickup trucks | 2809 | 28.1 (27.2, 29) | 558 | 22.5 (20.9, 24.2) | 534 | 20.1 (18.6, 21.7) | 7,992,456 | 18.9 (17.5, 20.3) | 9.2 | 3.6 | 1.2 |
| Time periods | |||||||||||
| Weekend | 2728 | 27.3 (26.4, 28.2) | 547 | 22.0 (20.5, 23.7) | 594 | 22.4 (20.8, 24.0) | 11,431,890 | 27.1 (23.3, 30.8) | 0.2 | 5.0 | 4.7 |
| Weekday rush | 3458 | 34.6 (33.7, 35.5) | 943 | 38.0 (36.1, 39.9) | 1025 | 38.6 (36.8, 40.5) | 14,854,264 | 35.1 (31.7, 38.6) | 0.6 | 2.9 | 3.4 |
| Weekday non-rush | 3811 | 38.1 (37.2, 39.1) | 991 | 39.9 (38.0, 41.9) | 1037 | 39.0 (37.2, 40.9) | 15,973,721 | 37.8 (34.3, 41.3) | 0.3 | 2.1 | 1.2 |
| Roadway types | |||||||||||
| Surface streets | 7354 | 73.6 (72.7, 74.4) | 1553 | 62.6 (60.7, 64.5) | 1618 | 60.9 (59.0, 62.8) | 25,678,814 | 60.8 (56.1, 65.4) | 12.8 | 1.8 | 0.2 |
| Expressways | 2643 | 26.4 (25.6, 27.3) | 928 | 37.4 (35.5, 39.3) | 1038 | 39.1 (37.2, 41.0) | 16,581,061 | 39.2 (34.6, 43.9) | 12.8 | 1.8 | 0.2 |
Note:
a
D2 refers to a not-at-fault driver in two-vehicle crash;
b
D3 refers to the first not-at-fault driver in a three-or-more-vehicle crash;
c
The remaining not-at-fault drivers excluding the first not-at-fault drivers in a three-or-more-vehicle crash;
d
The frequency was normalized to the US national scale using the assigned weight for each observation;
e
The confidence limits (CLs) of the estimates on national scale was obtained using the jackknife variance estimation method with replicate weights; Values in bold indicates that the percentage point difference in proportions between statistics from FARS and NOPUS was not significantly different