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Trends and Predictors of Glycemic Control Among Adults With Type 2 Diabetes Covered by Alabama Medicaid, 2011–2019
ORIGINAL RESEARCH — Volume 20 — September 14, 2023
PEER REVIEWED
Our sample started with Alabama Medicaid beneficiaries with diabetes, 2011–2019: 85,456 beneficiaries and 325,862 observations. We excluded 16,540 beneficiaries and 19,224 observations because they did not meet diabetes diagnosis criteria. We also excluded 2,966 beneficiaries and 44,328 observations because they were aged <19 or >64 years. We then had 69,950 beneficiaries and 262,310 observations who were adults aged 19 to 64 years and who met diabetes diagnosis criteria. We then excluded 47,390 beneficiaries and 236,241 observations because they had no HbA1c result. This process resulted in 18,560 beneficiaries and 43,997 observations being included in analyses.
Figure 1.
Flow diagram of included observations of adults with type 2 diabetes covered by Alabama Medicaid, 2011–2019.
Figure 2. Mean HbA1c by study year and glycemic control among Medicaid beneficiaries with diabetes in Alabama, 2011–2019. A, Mean HbA1c by study year. Error bars indicate SDs. B, Percentage of beneficiaries with an HbA1c <7% and <8%. The unit of analysis was person-years.
| Graph | Study year | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | |
| A. HbA1c Mean (SD), % | 7.63 (2.18) | 7.72 (2.26) | 7.75 (2.23) | 7.75 (2.24) | 7.79 (2.23) | 7.83 (2.22) | 7.85 (2.27) | 7.48 (2.37) | 7.64 (2.09) |
| B. Glycemic control | |||||||||
| Percentage of beneficiaries with HbA1c <7% | 51.5 | 50.4 | 48.7 | 49.3 | 47.4 | 47.1 | 46.9 | 51.5 | 49.1 |
| Percentage of beneficiaries with HbA1c <8% | 67.5 | 65.7 | 64.4 | 63.9 | 63.1 | 63.3 | 61.8 | 66.8 | 64.8 |
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