showed a trendP = 0.063
Pairwise comparison of pre- and post-operative HbA1c showed a trend toward HbA1c reduction at 3–6 months (7.68% to 7.56%, P = 0.063), with a significant HbA1c reduction in older subjects (7.62% to 7.39%, P = 0.004) and those with pre-operative HbA1c ≥8.0% (9.24% to 8.59%, P < 0.001) ( Table 1 and Figure 1 ).