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. Author manuscript; available in PMC: 2019 Jul 24.
Published in final edited form as: Pediatr Diabetes. 2019 Apr 15;20(4):408–413. doi: 10.1111/pedi.12845

TABLE 2.

Correlation coefficients and R2 for associations of HbA1c with C-peptide indices at diagnosis

Correlation (r) R2 (%) P-value
AUC C-peptide −0.34 11.6 <0.001
Peak C-peptide −0.37 13.7 <0.001
Early C-peptide response −0.34 11.6 <0.001
Late C-peptide response −0.38 14.4 <0.001
120/30 C-peptide −0.40 16.0 <0.001

Abbreviations: AUC, area under the curve; HbA1c, hemoglobin A1c.