Diabetes treatment intensification and associated changes in HbA1c and body mass index: a cohort study View Full Text


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Article Info

DATE

2016-12

AUTHORS

Christianne L. Roumie, Robert A. Greevy, Carlos G. Grijalva, Adriana M. Hung, Xulei Liu, Marie R. Griffin

ABSTRACT

BACKGROUND: To describe common type 2 diabetes treatment intensification regimens, patients' characteristics and changes in glycated hemoglobin (HbA1c) and body mass index (BMI). METHODS: We constructed a national retrospective cohort of veterans initially treated for diabetes with either metformin or sulfonylurea from 2001 through 2008, using Veterans Health Administration (VHA) and Medicare data. Patients were followed through September, 2011 to identify common diabetes treatment intensification regimens. We evaluated changes in HbA1c and BMI post-intensification for metformin-based regimens. RESULTS: We identified 323,857 veterans who initiated diabetes treatment. Of these, 55 % initiated metformin, 43 % sulfonylurea and 2 % other regimens. Fifty percent (N = 89,057) of metformin initiators remained on metformin monotherapy over a median follow-up 58 months (interquartile range [IQR] 35, 74). Among 80,725 patients who intensified metformin monotherapy, the four most common regimens were addition of sulfonylurea (79 %), thiazolidinedione [TZD] (6 %), or insulin (8 %), and switch to insulin monotherapy (2 %). Across these regimens, median HbA1c values declined from a range of 7.0-7.8 % (53-62 mmol/mol) at intensification to 6.6-7.0 % (49-53 mmol/mol) at 1 year, and remained stable up to 3 years afterwards. Median BMI ranged between 30.5 and 32 kg/m(2) at intensification and increased very modestly in those who intensified with oral regimens, but 1-2 kg/m(2) over 3 years among those who intensified with insulin-based regimens. CONCLUSIONS: By 1 year post-intensification of metformin monotherapy, HbA1c declined in all four common intensification regimens, and remained close to 7 % in subsequent follow-up. BMI increased substantially for those on insulin-based regimens. More... »

PAGES

32

Identifiers

URI

http://scigraph.springernature.com/pub.10.1186/s12902-016-0101-2

DOI

http://dx.doi.org/10.1186/s12902-016-0101-2

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https://app.dimensions.ai/details/publication/pub.1023913531

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/27255309


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46 schema:description BACKGROUND: To describe common type 2 diabetes treatment intensification regimens, patients' characteristics and changes in glycated hemoglobin (HbA1c) and body mass index (BMI). METHODS: We constructed a national retrospective cohort of veterans initially treated for diabetes with either metformin or sulfonylurea from 2001 through 2008, using Veterans Health Administration (VHA) and Medicare data. Patients were followed through September, 2011 to identify common diabetes treatment intensification regimens. We evaluated changes in HbA1c and BMI post-intensification for metformin-based regimens. RESULTS: We identified 323,857 veterans who initiated diabetes treatment. Of these, 55 % initiated metformin, 43 % sulfonylurea and 2 % other regimens. Fifty percent (N = 89,057) of metformin initiators remained on metformin monotherapy over a median follow-up 58 months (interquartile range [IQR] 35, 74). Among 80,725 patients who intensified metformin monotherapy, the four most common regimens were addition of sulfonylurea (79 %), thiazolidinedione [TZD] (6 %), or insulin (8 %), and switch to insulin monotherapy (2 %). Across these regimens, median HbA1c values declined from a range of 7.0-7.8 % (53-62 mmol/mol) at intensification to 6.6-7.0 % (49-53 mmol/mol) at 1 year, and remained stable up to 3 years afterwards. Median BMI ranged between 30.5 and 32 kg/m(2) at intensification and increased very modestly in those who intensified with oral regimens, but 1-2 kg/m(2) over 3 years among those who intensified with insulin-based regimens. CONCLUSIONS: By 1 year post-intensification of metformin monotherapy, HbA1c declined in all four common intensification regimens, and remained close to 7 % in subsequent follow-up. BMI increased substantially for those on insulin-based regimens.
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