For the bivariate analysis, the dependent variable was Prevalence in the use of a road safety helmet and the independent variables used were: City Valledupar=0, Ibagué=1; Age >59 years old = 0, >=18 to <59 years old = 1; Sex Female = 0, Male = 1; Number of Road Lanes 3 Lanes = 0; 2 Lanes = 1; Distracting Factors Absent =0; Present = 1; Weather Conditions Dry Road = 0, Wet Road = 1.
Para el análisis bivariado, la prevalencia de uso de casco se tomó como variable dependiente y como variables independientes se usaron: ciudad Valledupar = 0, Ibagué = 1; edad > 59 años = 0, > = 18 a<59 años = 1; sexo femenino = 0, masculino = 1; número de carriles en la vía 3 Carriles = 0; 2 Carriles = 1;distractor 0 = Ausente; 1 = Presente;estado del clima Piso seco = 0, Piso mojado = 1.