Fig 4. The means of subscapular skinfold and waist circumference in different quartiles of serum C-peptide and plasma glucose by insulin level.

The means of subscapular skinfold and waist circumference in different quartiles of serum C-peptide and plasma glucose for insulin level (<56.34 pmol/L) that were presented in (a) and (b), and the means of subscapular skinfold and waist circumference in different quartiles of serum C-peptide and plasma glucose for insulin level (≥56.34 pmol/L) that were presented in (c) and (d).