Abstract
Purpose of the study
Although insulin resistance is the pathogenic basis of type 2 diabetes mellitus (T2DM), it can also affect patients with type 1 diabetes mellitus (T1DM). In this clinical study, we investigated the relationship between insulin resistance grade and daily insulin dosage in order to clarify whether the approach to improving insulin resistance along with insulin therapy should be considered to treat T1DM and T2DM.
Methods
As the means of insulin resistance estimation, we selected the insulin resistance score because patients use insulin therapy and homeostatic model assessment insulin resistance (HOMA-IR) is not appropriate for those patients. The insulin resistance score was calculated as 24.31 – (12.22 × WHR) – (3.29 × HT) – (0.57 × HbA1c), where WHR is the waist-to-hip ratio, HT is hypertension, and HbA1c is glycated hemoglobin (%).
Results
The insulin resistance score was negatively correlated with the body mass index (BMI; r = –0.511) and the WHR (r = –0.773). The total insulin dosage was positively correlated with the BMI (r = 0.734) but negatively correlated with the insulin resistance score (r = –0.540).
Conclusion
Insulin resistance estimation is necessary for T1DM treatment, and the insulin resistance score is a useful tool for estimating insulin resistance in patients with T1DM accompanied with insulin resistance.
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Data availability
The datasets generated or analyzed during the current study are available from the corresponding author on reasonable request.
Code availability
Not applicable.
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TW and SO collected the data. EY, KO (Okada), KK, KO (Ohshima), and SO analyzed the data. JO and SO prepared the manuscript.
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The ethics committees at Hidaka Hospital and Saku Central Hospital Advanced Care Center approved our study, which conformed to the Declaration of Helsinki (as #355 and R201811-03, respectively).
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All patients provided written informed consent to analyze and present their clinical laboratory data.
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Okada, S., Watanabe, T., Okada, J. et al. Correlation between insulin resistance score and daily total insulin dosage in patient with type 1 diabetes mellitus: a pilot study. Int J Diabetes Dev Ctries 43, 113–117 (2023). https://doi.org/10.1007/s13410-022-01117-9
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DOI: https://doi.org/10.1007/s13410-022-01117-9