| 
      aBased on drug dispensings in the year before cohort entry date.
        |  | Multivariate (adjusted) 
          regression    coefficient |  |  
        |  | n | Estimate | 95% CI | P value |  
        | Index treatment |  |  |  |  |  
        | Detemir | 298 | 0 | Reference |  |  
        | Glargine | 708 | –0.17 | (–0.31, –0.02) | <0.05 |  
        |  |  |  |  |  |  
        | Covariates |  |  |  |  |  
        | Age, years | 1006 | –0.01 | (–0.01, 0.00) | <0.001 |  
        | Gender |  |  |  |  |  
        | Male | 548 | 0 | Reference | – |  
        | Female | 458 | 0.13 | (0.00, 0.26) | 0.06 |  
        | Start year |  |  |  |  |  
        | 2004 | 255 | 0 | Reference | – |  
        | 2005 | 263 | 0.06 | (–0.12, 0.24) | 0.54 |  
        | 2006 | 210 | –0.14 | (–0.34, 0.05) | 0.15 |  
        | 2007 | 278 | 0.27 | (0.08, 0.45) | <0.01 |  
        | Prescriber |  |  |  |  |  
        | General practitioner | 494 | 0 | Reference | – |  
        | Specialist | 512 | –0.16 | (–0.29, –0.03) | <0.05 |  
        | Prior anti-diabetics usea |  |  |  |  |  
        | Insulin | 225 | 0.69 | (0.52, 0.85) | <0.001 |  
        | Baseline HbA1c (%) | 1006 | –0.60 | (–0.65, –0.55) | <0.001 |  |