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. 2016 May 24;311(1):E145–E156. doi: 10.1152/ajpendo.00452.2015

Table 1.

Stepwise linear regression analysis for predictors of insulin-stimulated changes in PDH phosphorylation

Dependent Variable Significant Predictor(s) β-Coefficient Adjusted r2 P Value
Change in PDH-Ser232 Age, skeletal muscle PDP1 0.588, −0.478 0.41 P < 0.005
Change in PDH-Ser293 V̇o2 peak −0.723 0.50 P < 0.001
Change in PDH-Ser300 Skeletal muscle PDP2, age −0.501, 0.405 0.36 P < 0.005

PDH, pyruvate dehydrogenase; PDP1 and -2, pyruvate dehydrogenase phosphatase 1 and 2, respectively. Age was coded (0, 1), with the higher number indicating aged individuals.