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Table 1 Model 1: linear; Model 2: second order polynomial; Model 3: third order polynomial fit

From: Angiotensin II receptor blocker telmisartan attenuates aortic stiffening and remodelling in STZ-diabetic rats

  Df AIC
Model 1 5.00 970.37
Model 2 6.00 786.11
Model 3 7.00 787.55
  1. A second order polynomial provides the best fit to the grouped data.
  2. Df, degrees of freedom; AIC, Akaike information criterion.