| 
      NS: Difference not Statistically Significant. aaverage one year’s HbA1c values ± standard deviation, bANOVA except where stated otherwise, ccannabis, hashish, dheroin,
    cocaine, synthetic drugs, eMann Whitney U-test
        |  | Yes | No | Statistical analysis |  
        |  | n | HbA1c (%)a | n | HbA1c (%)a | Test statisticsb | p value |  
        | Ever smoked    cigarettes | 28 | 8.6 ± 1.4 | 86 | 8.1 ± 1.0 | 1041.5e | NS |  
        | Ever drank: |  |  |  |  |  |  |  
        | beer | 52 | 8.3 ± 1.2 | 62 | 8.2 ± 1.1 | 0.355 | NS |  
        | wine | 47 | 8.0 ± 1.1 | 66 | 8.4 ± 1.1 | 4.811 | 0.03 |  
        | liquors | 32 | 8.3 ± 1.3 | 81 | 8.2 ± 1.0 | 0.096 | NS |  
        | Drunk in the    previous month | 22 | 8.3 ± 1.1 | 92 | 7.9 ± 1.1 | 2.381 | NS |  
        | Ever used: |  |  |  |  |  |  |  
        | soft drugsc | 14 | 8.3 ± 0.9 | 100 | 8.2 ± 1.1 | 0.165 | NS |  
        | hard drugsd | 2 | 10.4 ± 1.7 | 111 | 8.2 ± 1.1 | 8.272 | 0.005 |  
        | Used insulin    omission/laxatives/vomiting to control body weight | 9 | 9.0 ± 1.1 | 104 | 8.2 ± 1.1 | 4.189 | 0.04 |  
        | Ever cut class | 65 | 8.2 ± 1.2 | 49 | 8.3 ± 1.0 | 0.070 | NS |  
        | Ever ran away from    home | 3 | 8.9 ± 2.3 | 111 | 8.2 ± 1.1 | 153.5e | NS |  |