Table 2. .
Associations between Performance in Visual Processing Screening Tests and MVC Rate in the Previous 5 Years (Both Unadjusted and Adjusted Rate Ratios)
|
|
N |
All MVCs |
At Fault MVCs |
||||||
|
N
MVCs |
MVC Rate* |
RR (95% CI) |
RR (95% CI)† |
N
MVCs |
MVC Rate* |
RR (95% CI) |
RR (95% CI)† |
||
| MVPT visual closure subtest | |||||||||
| >7 correct | 1,700 | 566 | 5.16 | Reference | Reference | 253 | 2.31 | Reference | Reference |
| ≤7 correct | 300 | 115 | 7.62 | 1.48 (1.21–1.80) | 0.97 (0.78–1.21) | 55 | 3.64 | 1.58 (0.18–2.11) | 0.93 (0.67–1.27) |
| Trails B | |||||||||
| <2.47 minutes | 1,241 | 382 | 4.53 | Reference | Reference | 160 | 1.90 | Reference | Reference |
| ≥2.47 minutes | 754 | 298 | 7.43 | 1.64 (1.41–1.91) | 1.23 (1.02–1.49) | 148 | 3.67 | 1.94 (1.55–2.43) | 1.39 (1.05–1.83) |
| UFOV subtest 2 | |||||||||
| <150 ms | 1,125 | 362 | 4.78 | Reference | Reference | 160 | 2.11 | Reference | Reference |
| 150–350 ms | 653 | 228 | 5.97 | 1.25 (1.06–1.48) | 0.98 (0.82–1.17) | 96 | 2.51 | 1.19 (0.93–1.54) | 0.88 (0.67–1.15) |
| >350 ms | 221 | 91 | 8.60 | 1.80 (1.43–2.27) | 0.99 (0.75–1.31) | 52 | 4.91 | 2.33 (1.71–3.19) | 1.09 (0.73–1.61) |
*
Motor vehicle collision rate per million miles of travel.
†
Rate ratio (RR) adjusted for age, sex, race, education, contrast sensitivity, visual acuity, MMSE, and number of comorbid medical conditions.