Table 1—

Baseline characteristics of the TrialNet and ECPT participants

TrialNetECPTCombined data*
n148118230
Male sex (%)91 (61)70 (59)138 (60)
Age (years)
    Median (range)15 (8–35)19 (8–40)16 (8–35)
    Means ± SD16.2 (6.19)20.3 (7.54)17.2 (6.53)
Categories
    8–12 years (%)51 (34)26 (22)73 (32)
    13–17 years (%)49 (33)26 (22)66 (29)
    ≥18 years (%)48 (32)66 (56)91 (40)
Race
    White128 (86)116 (98)208 (90)
    African American6 (4)0 (0)6 (3)
    American Indian3 (1)0 (0)3 (1)
    Asian4 (3)1 (0.85)5 (2)
    Other7 (5)1 (0.85)8 (3)
Ethnicity
    % Hispanic10 (7)N/AN/A
Duration of type 1 diabetes (years)
    Median (range)1.36 (0.08–2.98)2.32 (0.75–4.97)1.49 (0.08–2.98)
    Mean ± SD1.4 ± 0.882.5 ± 1.271.54 ± 0.84
Categories
    0 to <1 year60 (41)15 (13)75 (33)
    1 to <2 years39 (26)34 (29)72 (31)
    2 to <3 years49 (33)34 (29)83 (36)
    3 to <4 yearsN/A14 (12)N/A
    4 to <5 yearsN/A21 (18)N/A
A1C (%)7.3 ± 1.4
  • Data are n (%), median (range), and means ± SD.

  • * Restricted to TrialNet and ECPT study subjects with diabetes duration of 3 months to 3 years and 8–35 years of age. N/A, not applicable.