Table 4—

Hypoglycemia: first occurrence during the first 6 years of the DCCT, by stimulated C-peptide group and by HbA1c category

Stimulated C-peptide groupHbA1c category
<7.5%7.5–9.0%>9.0%
Undetectable23 ± 2a13 ± 1b4 ± 1c
Minimal20 ± 2a8 ± 1b3 ± 1c
Baseline-only21 ± 4a4 ± 1b2 ± 1b
Sustained8 ± 1a6 ± 0.2a1 ± 0.7b
All19 ± 19 ± 0.73 ± 0.4
  • Data are rates ± SE per 100 participant-years. Rates were compared among HbA1c categories (horizontally) within each stimulated C-peptide group. For each comparison, rates with different letters were significantly different (P < 0.05), while rates sharing the same letter were indistinguishable.