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. Author manuscript; available in PMC: 2025 Apr 1.
Published in final edited form as: Diabetes Res Clin Pract. 2024 Mar 15;210:111606. doi: 10.1016/j.diabres.2024.111606

Table 1.

Sociodemographic and clinical characteristics of participants from TODAY and SEARCH for Diabetes in Youth (SEARCH 4 cohort visit) who underwent screening and adjudication of diabetes related medical events.

SEARCH T1D N=564 SEARCH T2D N=149 TODAY T2D N=495

Age at diabetes onset (years), mean(sd) 9.7 (4.4) 14.3 (2.7) 13.2 (2.1)*

Age at last visit (years), mean(sd) 21.1 (5.2) 24.3 (4.4) 26.5 (2.7)

Duration of Diabetes (years), mean(sd) 11.4 (3.7) 10.0 (3.8) 13.3 (1.8)*

Female Sex, N(%) 305 (54.1%) 98 (65.8%) 324 (65.5%)

Race/Ethnicity, N(%) *

 Non-Hispanic White 334 (59.2%) 23 (15.4%) 94 (19.0%)

 Black 98 (17.4%) 74 (49.7%) 174 (35.2%)

 Hispanic 107 (19.0%) 40 (26.8%) 188 (38.0%)

 Other 25 (4.4%) 12 (8.1%) 39 (7.9%)

Insurance, N(%)

 Private 399 (70.7%) 54 (36.2%) 163 (32.9%)

 Medicaid/Public 106 (18.8%) 53 (35.6%) 207 (41.8%)

 None 17 (3.0%) 23 (15.4%) 61 (12.3%)

 Other 34 (6.0%) 13 (8.7%) 31 (6.3%)

 Unknown 8 (1.4%) 6 (4.0%) 33 (6.7%)

Household Income, N(%) *

 <$25K 82 (14.5%) 43 (28.9%) 299 (60.4%)

 $25–49K 102 (18.1%) 27 (18.1%) 139 (28.1%)

 $50–74K 65 (11.5%) 6 (4.0%) 35 (7.1%)

 $75K+ 168 (29.8%) 5 (3.4%) 5 (1.0%)

 DK/Ref 147 (26.1%) 68 (45.6%) 17 (3.4%)

Participant Education, N(%) *

 Less than HS gr 194 (34.6%) 27 (18.4%) 60 (12.1%)

 HS graduate 122 (21.7%) 56 (38.1%) 311 (62.8%)

 Some College/Associates Degree 169 (30.1%) 54 (36.7%) 49 (9.9%)

 Bachelor degree or higher 76 (13.5%) 10 (6.8%) 75 (15.2%)

 Unknown 3 2 0

Medication Regimen, N(%) *

 Metformin only 1 (0.2%) 11 (7.9%) 92 (18.6%)

 Insulin only 540 (95.7%) 47 (33.8%) 107 (21.6%)

 Insulin + Something else 19 (3.4%) 38 (27.3%) 154 (31.1%)

 Other Oral 1 (0.2%) 7 (5.0%) 23 (4.6%)

 None 3 (0.5%) 36 (25.9%) 119 (24.0%)

 Unknown 0 10 0

HbA1c (%), mean(sd) 9.1 (2.2) 9.5 (2.9) 9.4 (2.8)
Mmol/mol, mean(sd) 76 (24) 80 (32) 79 (31)

Body Mass Index (kg/m2), mean(sd) 25.6 (5.4) 36.4 (9.3) 36.0 (8.4)

 < 25 302 (53.5%) 11 (7.4%) 25 (5.3%)

 25–30 161 (28.5%) 23 (15.4%) 85 (17.9%)

 30–40 90 (16.0%) 73 (49.0%) 235 (49.6%)

 40 + 11 (2.0%) 42 (28.2%) 129 (27.2%)

Systolic Blood Pressure, mean(sd) 110.1 (11.7) 123.5 (18.8) 122.3 (14.9)

Diastolic Blood Pressure, mean(sd) 70.7 (9.2) 79.7 (13.6) 76.7 (11.2)*

Mean Arterial Pressure, mean(sd) 83.9 (9.0) 94.3 (14.5) 91.9 (11.8)

LDL (mg/dl), mean(sd) 105.9 (33.1) 108.4 (31.6) 102.7 (33.5)

Triglycerides (mg/dl), median (IQR) 78.0 (59.0; 109.5) 108.0 (78.0; 171.0) 115.0 (79.0; 172.0)

ACEI/ARB *

 Yes 29 (5.4%) 14 (10.8%) 146 (29.5%)

 No 506 (94.6%) 116 (89.2%) 349 (70.5%)

 Unknown 29 19 0

Statin use *

 Yes 15 (2.8%) 8 (6.2%) 72 (14.5%)

 No 520 (97.2%) 122 (93.8%) 423 (85.5%)

 Unknown 29 19 0
*

p<0.05 comparing SEARCH type 2 and TODAY type 2 (t-test, Kruskal-Wallis, or Chi-square test)