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Table 4 Crude and adjusted odds of having poor driving competencies (N = 404)

From: The trail making test as a screening instrument for driving performance in older drivers; a translational research

Determinants Crude Model 1-TMT-A Model 2-TMT-B
R2 = 0.081 R2 = 0.107
OR [CI95%, p-value] R2 ORadj P-value ORadj P-value
Neuropsychological tasks       
TMT-A* 5.1 [1.5 to 17.4, p = 0.010] 0.036 3.8 0.041 - -
TMT-B* 7.6 [2.2 to 25.8, p = 0.001] 0.058 - - 6.3 0.005
MoCA   0.043     
NoCI (MoCA ≥ 26) Reference      
MCI (MoCA < 26 & ≥19) 0.60 [0.20 to 1.8, p = 0.368]      
SCI (MoCA < 19) 16.7 [2.2 to 127, p = 0.006]      
MoCAmod*† 4.4 [1.4 to 13.7, p = 0.010] 0.034 - -   
Socio-demographic       
Age* 1.6 [0.43 to 6.0, p = 0.468] 0.003 0.85 0.821 0.83 0.797
Gender (female) 2.1 [0.88 to 5.0 p = 0.093] 0.016 - - - -
Education (<12 yrs) 0.81 [0.3 to 2.3, p = 0.701] <0.001 - - 0.59 0.349
Functional mobility       
Timed up-and-go test (TUG) 3.2 [0.9 to 11.1, p = 0.066] 0.020 2.4 0.178 2.2 0.210
Driving experience       
Distance driven per week*† 5.4 [1.6 to 17.4, p = 0.004] 0.043 4.1 0.022 3.9 0.031
Vision       
Visual acuity*† 1.5 [0.44 to 5.3, p = 0.514] 0.002 - -   
  1. *Odds ratio was measured using logistic regression. Continuous values were transformed to be normally distributed and have a range of 0 to 1 from the fifth to the ninety-fifth percentile of the population. † Scale was inverted for high scores to represent worsening conditions. We used multiple imputations (50) to replace missing data (TUG, n = 10; distance per week, n = 2; visual acuity, n = 3). MCI = mild cognitive impairment; MoCA = Montreal Cognitive Assessment, MoCAmod = Modified Montreal Cognitive Assessment (First subtask similar to TMT-B omitted), NoCI = No cognitive impairement; R2 = McFadden's pseudo R-squared coefficient of determination; SCI = severe cognitive impairment.