References
- The Diabetes Control and Complications Trial Research Group. The effect of intensive treatment of diabetes on the development and progression of long-term complications in insulin-dependent diabetes mellitus. New Engl J Med 1993;329:977–86
- UK Prospective Diabetes Study (UKPDS) Group. Intensive blood-glucose control with sulphonylureas or insulin compared with conventional treatment and risk of complications in patients with type 2 diabetes (UKPDS 33). Lancet 1998;352: 837–53
- Summers KH, Szeinbach SL, Lenox SM. Preference for insulin delivery systems among current insulin users and nonusers. Clin Ther 2004;26:1498–505
- Korytkowski M, Bell D, Jacobsen C, Suwannasari R, FlexPen Study Team. A multicenter, randomized, open-label, compar- ative, two-period crossover trial of preference, efficacy, and safety profiles of a prefilled, disposable pen and conventional vial/syringe for insulin injection in patients with type 1 or 2 diabetes mellitus. Clin Ther 2003;25: 2836–48
- Lteif AN, Schwenk WF. Accuracy of pen injectors versus insulin syringes in children with type 1 diabetes. Diabetes Care 1999;22:137–40
- Szeinbach SL, Barnes JH, Summers KH, Lenox SM. Development of an instrument to assess expectations of and preference for an insulin injection pen compared with the vial and syringe. Clin Ther 2004;26:590–7
- Stokes M, Davis C, Koch G. Categorical data analysis using the SAS® system. Cary (NC): SAS Institute Inc.; 1995