Table 6 Correlation results between driving simulator errors (City Driving and Bus Following) and clinical variables, self-reported driving behavior, and cognitive test scores for participants with brain tumor.

From: Driving habits and behaviors of patients with brain tumors: a self-report, cognitive and driving simulation study

 

City Driving Total Errors

City Driving Speed Exceedances

Bus Following Total Errors

Bus Following Speed Exceedances

Months since diagnosis

0.798 [0.462, 0.950]*

0.507 [−0.070, 0.801]

0.840 [0.534, 0.951]**

0.753 [0.357, 0.908]*

Months since surgery

0.279 [−0.412, 0.849]

−0.161 [−0.639, 0.429]

0.560 [−0.126, 0.905]

0.358 [−0.275, 0.811]

Tumor size (cm3)

0.468 [−0.103, 0.804]

0.190 [−0.415, 0.721]

0.218 [−0.387, 0.685]

−0.180 [−0.582, 0.452]

Self-report speed compared to traffic in city

−0.243 [−0.727, 0.447]

0.223 [−0.405, 0.677]

−0.339 [−0.744, 0.253]

−0.177 [−0.587, 0.284]

Self-report speed compared to traffic on highway

−0.043 [−0.636, 0.571]

0.357 [−0.164, 0.792]

−0.168 [−0.699, 0.449]

0.088 [−0.405, 0.567]

Self-report avoid driving in busy traffic

−0.382 [−0.830, 0.297]

−0.685 [−0.817, −0.296]*

−0.454 [−0.826, 0.162]

−0.473 [−0.825, 0.108]

Self-report drive faster than speed limit if driver thinks he/she will not be caught

0.392 [−0.197, 0.758]

0.313 [−0.239, 0.772]

−0.035 [−0.590, 0.610]

0.300 [−0.299, 0.841]

UFOV Processing Speed

−0.290 [−0.723, 0]

−0.116 [−0.532, 0.239]

−0.060 −0.520, 0.332]

−0.315 [−0.661, 0.168]

UFOV Divided Attention

0.216 [−0.532, 0.817]

0.359 [−0.363, 0.833]

0.348 [−0.239, 0.833]

0.445 [−0.408, 0.913]

UFOV Selective Attention

0.523 [−0.171, 0.774]

0.222 [−0.425, 0.753]

0.722 [0.080, 0.957]*

0.535 [−0.094, 0.934]

TMT-A time

0.122 [−0.562, 0.866]

−0.331 [−0.755, 0.317]

0.291 [−0.371, 0.855]

−0.093 [−0.672, 0.627]

TMT-A errors

0.466 [0.466, 0.746]

0.387 [0.234, 0.741]

0.314 [0.079, 0.674]

0.164 [−0.120, 0.582]

TMT-B time

0.177 [−0.437, 0.635]

−0.135 [−0.662, 0.481]

0.402 [−0.330, 0.862]

0.023 [−0.542, 0.711]

TMT-B errors

0.236 [−0.415, 0.759]

0.219 [−0.320, 0.663]

0.125 [−0.332, 0.571]

0.160 [−0.374, 0.669]

Digit span forward

0.196 [−0.438, 0.699]

0.372 [−0.288, 0.856]

0.232 [−0.377, 0.706]

0.461 [−0.048, 0.764]

Digit span backward

−0.018 [−0.565, 0.646]

0.060 [−0.523, 0.602]

−0.126 [−0.694, 0.477]

0.013 [−0.553, 0.569]

Digit symbol time

0.136 [−0.545, 0.741]

0.033 [−0.616, 0.636]

0.089 [−0.590, 0.826]

−0.227 [−0.762, 0.449]

Verbal fluency total correct

0.473 [−0.301, 0.830]

0.499 [−0.170, 0.891]

0.494 [−0.108, 0.806]

0.630 [−0.038, 0.890]

Verbal fluency perseverations

0.373 [−0.259, 0.850]

0.365 [−0.296, 0.882]

0.274 [−0.270, 0.701]

0.455 [−0.077, 0.824]

Verbal fluency switches

0.456 [−0.280, 0.831]

0.531 [−0.161, 0.897]

0.473 [−0.161, 0.845]

0.569 [−0.014, 0.862]

HADS anxiety

0.432 [−0.127, 0.798]

0.155 [−0.469, 0.659]

0.339 [−0.327, 0.783]

0.505 [−0.135, 0.892]

HADS depression

−0.134 [−0.748, 0.722]

−0.392 [−0.855, 0.332]

−0.132 [−0.626, 0.401]

−0.173 [−0.706, 0.551]

HADS total score

0.326 [−0.337, 0.791]

0.055 [−0.587, 0.617]

0.283 [−0.363, 0.664]

0.344 [−0.283, 0.792]

  1. Note: All values are reported in Spearman correlation coefficient [95% confidence interval] format. HADS, Hospital Anxiety and Depression Scale; TMT-A, Trail Making Test Part A; TMT-B, Trail Making Test Part B; UFOV, Useful Field of View test. City Driving total errors are the sum of: collisions, speed exceedances, centerline crossings, road edge excursions, stop signs missed. Bus Following total errors is the sum of: speed exceedances, centerline crossings, road edge excursions. *p < 0.05, **p < 0.001.
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