Fig. 1
From: Correction of metabolic acidosis improves insulin resistance in chronic kidney disease
The bagplots describe the association between serum bicarbonate and HOMA test in subjects randomized to oral sodium bicarbonate (Treated) or conventional therapy (controls) at study inception and conclusion. Legend: The inner polygon (called bag) contains 50 % of all points. Observations outside the outermost polygon (called fence) are outliers. The observations between the bag and fence are marked by line segments. The asterisk symbol (*) near the center of the graph represents the bivariate median