Fig. 2.
Change in percentages of patients with each C-peptide immunoreactivity (CPR) level according to the duration (yr) since diagnosis in type 1A diabetes mellitus (T1AD) children. Fifty-two subjects were diagnosed with T1AD for 1 yr since diagnosis, 158 for 1–3 yr since diagnosis, 120 for 3–5 yr since diagnosis, 195 for 5–10 yr since diagnosis, and 51 for 10–16 yr since diagnosis. The percentage of children with a CPR < 0.1 ng/mL increased according to the duration since diagnosis (P < 0.001): 15% for within 1 yr, 30% for 1–3 yr, 51% for 3–5 yr, 66% for 5–10 yr, and 78% for 10–16 yr. At 5 or more years since diagnosis, 69% (167/246) had a CPR < 0.1 and 95% (233/246) had a CPR < 0.3 ng/mL.