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. Author manuscript; available in PMC: 2016 Jun 6.
Published in final edited form as: J Am Geriatr Soc. 2015 May 8;63(5):893–901. doi: 10.1111/jgs.13388

Figure 1.

Figure 1

Mean (standard error) reduction in glycosylated hemoglobin (HbA1c) at 1-year follow-up compared with baseline, after use of 1, 2, and ≥3 oral antidiabetes drugs (OADs) according to baseline HbA1c categories. Asterisks represent significant group differences from delayed insulin initiation (≥3 OADs) in mean HbA1c reduction according to insulin initiation category (1 OAD and 2 OADs) based on unadjusted ordinary least squares regression with inverse probability treatment weights: ***P ≤ .001; **P < .01; *P < .05.