Diabetic Medicine
Diabetic Medicine
5 years ago

Comparison of different insulin pump makes under routine care conditions in adults with Type 1 diabetes

A. Chapman, M. K. Rutter, P. Jinadev, S. A. Roberts, T. Alam, A. Hindle, A. Urwin, J. Morris, K. Markakis, L. Leelarathna
Aims To compare long-term HbA1c changes associated with different insulin pumps during routine care in a large cohort of adults with Type 1 diabetes representative of other clinic populations. Methods Observational, retrospective study of 508 individuals starting pump therapy between 1999 and 2014 (mean age, 40 years; 55% women; diabetes duration, 20 years; 94% Type 1 diabetes; median follow-up, 3.7 years). Mixed linear models compared covariate-adjusted HbA1c changes associated with different pump makes. Results The pumps compared were: 50% Medtronic, 24% Omnipod, 14% Roche and 12% Animas. Overall HbA1c levels improved and improvements were maintained during a follow-up extending to 10 years (HbA1c: pre-continuous subcutaneous insulin infusion (pre-CSII) vs. 12 months post CSII, 71 (61, 82) vs. 66 (56, 74) mmol/mol; 8.7 (7.7, 9.6) vs. 8.2 (7.3, 8.9)%; P < 0.0001). The percentage of individuals with HbA1c ≥ 64 mmol/mol (8.0%) reduced from a pre-CSII level of 68% to 55%. After adjusting for baseline confounders, there were no between-pump differences in HbA1c lowering (P = 0.44), including a comparison of patch pumps with traditional catheter pumps (P = 0.63). There were no significant (P < 0.05) between-pump differences in HbA1c lowering in pre-specified subgroups stratified by pre-pump HbA1c, age or diabetes duration. HbA1c lowering was positively related to baseline HbA1c (P < 0.001) and diabetes duration (P = 0.017), and negatively related to the number of years of CSII use (P = 0.024). Conclusions Under routine care conditions, there were no covariate-adjusted differences in HbA1c lowering when comparing different pump makes, including a comparison of patch pumps vs. traditional catheter pumps. Therefore, the choice of CSII make should not be influenced by the desired degree of HbA1c lowering.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1111/dme.13412

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