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. 2015 Oct 1;10(10):e0138288. doi: 10.1371/journal.pone.0138288

Table 1. Baseline demographic and clinical characteristics of study patients (mean ± standard deviation).

Variables No Motor Vehicle Collisions (106 subjects) Motor Vehicle Collisions (11 subjects) P-value
Age (years) 65.1 ± 12.0 58.5 ± 17.3 0.251
Sex, female (%) 42 (39.6%) 7 (63.6%) 0.198*
Ethnicity (%) 0.556*
Caucasian 67 (63.2%) 8 (72.7%)
African-American 26 (24.5%) 1 (9.1%)
Other 13 (12.3%) 2 (18.2%)
MD Worse Eye (dB) -3.4 ± 4.9 -3.5 ± 4.8 0.892
MD Better Eye (dB) -1.1 ± 2.8 -2.0 ± 3.8 0.365
Binocular SAP Sensitivity (dB) 29.0 ± 2.3 28.7 ± 3.0 0.933
Visual Acuity Worse Eye (LogMAR) 0.06 ± 0.15 0.12 ± 0.23 0.850
Visual Acuity Better Eye (LogMAR) -0.03 ± 0.11 -0.05 ± 0.11 0.588
Contrast Sensitivity Worse Eye 1.43 ± 0.21 1.40 ± 0.19 0.566
Contrast Sensitivity Better Eye 1.52 ± 0.15 1.49 ± 0.14 0.526
Average Distance Driven per Week (miles) 167 ± 224 178 ± 87 0.171
Montreal Cognitive Assessment Score 28 ± 3 28 ± 3 0.563
UFOV Divided Attention Test (ms) 71 ± 98 94 ± 149 0.785
Low Contrast Reaction Time (s) 0.94 ± 0.76 1.09 ± 1.37 0.929
High Contrast Reaction Time (s) 0.59 ± 0.19 0.58 ± 0.14 0.515
Corrected Reaction Time (s) 0.35 ± 0.70 0.51 ± 1.36 0.725
Curve Coherence 0.96 ± 0.01 0.91 ± 0.03 0.009

Abbreviations: MD = mean deviation, dB = decibels; logMAR = logarithm of the minimum angle of resolution; UFOV = Useful field of view; ms = miliseconds, s = seconds.

*Fisher’s exact test.