Skip to Main Content
Table 1—

Demographic characteristics and driving mishaps for U.S. and European drivers with diabetes and nondiabetic spouses

U.S.EuropeTotalProbability for group effect*Probability for location effect*
Descriptive characteristics      
  n      
    Type 1 diabetic subjects 172 141 313   
    Type 2 diabetic subjects 177 97 274   
    Nondiabetic spouse control subjects 188 138 326   
  Mean age (years)      
    Type 1 diabetic subjects 42.4 42.4 42.4 <0.001 NS 
    Type 2 diabetic subjects 55.8 58.1 56.7   
    Nondiabetic spouse control subjects 52.6 48.0 50.6   
  Diabetes duration (years)      
    Type 1 diabetic subjects 21.6 17.5 19.7 <0.001 <0.01 
    Type 2 diabetic subjects 11.4 11.2 11.3   
    Nondiabetic spouse control subjects — — —   
  Female sex (%)      
    Type 1 diabetic subjects 55 41 49 0.05 <0.001 
    Type 2 diabetic subjects 47 24 39   
    Nondiabetic spouse control subjects 46 41 43   
  Drivers talked to their physicians about driving (%)      
    Type 1 diabetic subjects 52 52 52 <0.001 NS 
    Type 2 diabetic subjects 24 34 27   
    Nondiabetic spouse control subjects — — —   
  Miles/year      
    Type 1 diabetic subjects 12,485 9,969 11,310 NS <0.001 
    Type 2 diabetic subjects 13,283 10,999 12,463   
    Nondiabetic spouse control subjects 13,674 7,102 10,878   
Frequency of events      
  Drivers with crashes (%)      
    Type 1 diabetic subjects 16 23 19 <0.001 <0.005 
    Type 2 diabetic subjects 19 12   
    Nondiabetic spouse control subjects 11   
  Drivers with violations (%)      
    Type 1 diabetic subjects 19 10 15 0.03 0.05 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects 13 10   
  Drivers with hypoglycemic stupor (%)      
    Type 1 diabetic subjects 31 18 <0.001 <0.001 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects — — —   
  Drivers who needed assistance (%)      
    Type 1 diabetic subjects 24 17 <0.001 <0.001 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects — — —   
  Drivers with hypoglycemia while driving in past 6 months (%)      
    Type 1 diabetic subjects 28 16 22 <0.001 <0.001 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects — — —   
U.S.EuropeTotalProbability for group effect*Probability for location effect*
Descriptive characteristics      
  n      
    Type 1 diabetic subjects 172 141 313   
    Type 2 diabetic subjects 177 97 274   
    Nondiabetic spouse control subjects 188 138 326   
  Mean age (years)      
    Type 1 diabetic subjects 42.4 42.4 42.4 <0.001 NS 
    Type 2 diabetic subjects 55.8 58.1 56.7   
    Nondiabetic spouse control subjects 52.6 48.0 50.6   
  Diabetes duration (years)      
    Type 1 diabetic subjects 21.6 17.5 19.7 <0.001 <0.01 
    Type 2 diabetic subjects 11.4 11.2 11.3   
    Nondiabetic spouse control subjects — — —   
  Female sex (%)      
    Type 1 diabetic subjects 55 41 49 0.05 <0.001 
    Type 2 diabetic subjects 47 24 39   
    Nondiabetic spouse control subjects 46 41 43   
  Drivers talked to their physicians about driving (%)      
    Type 1 diabetic subjects 52 52 52 <0.001 NS 
    Type 2 diabetic subjects 24 34 27   
    Nondiabetic spouse control subjects — — —   
  Miles/year      
    Type 1 diabetic subjects 12,485 9,969 11,310 NS <0.001 
    Type 2 diabetic subjects 13,283 10,999 12,463   
    Nondiabetic spouse control subjects 13,674 7,102 10,878   
Frequency of events      
  Drivers with crashes (%)      
    Type 1 diabetic subjects 16 23 19 <0.001 <0.005 
    Type 2 diabetic subjects 19 12   
    Nondiabetic spouse control subjects 11   
  Drivers with violations (%)      
    Type 1 diabetic subjects 19 10 15 0.03 0.05 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects 13 10   
  Drivers with hypoglycemic stupor (%)      
    Type 1 diabetic subjects 31 18 <0.001 <0.001 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects — — —   
  Drivers who needed assistance (%)      
    Type 1 diabetic subjects 24 17 <0.001 <0.001 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects — — —   
  Drivers with hypoglycemia while driving in past 6 months (%)      
    Type 1 diabetic subjects 28 16 22 <0.001 <0.001 
    Type 2 diabetic subjects   
    Nondiabetic spouse control subjects — — —   
*

Continuous variables (age, diabetes duration, miles) were compared using ANOVA. All other comparisons used nonparametric tests.

Close Modal

or Create an Account

Close Modal
Close Modal