Table 1

Characteristics of the TODAY participants at the time of HRV measurements in TODAY

VariableValue, n = 397
T2D duration (years)7.7 ± 1.5
Age (years)20.7 ± 2.5
Sex, female64.7
Race-ethnicity
 Non-Hispanic black31.7
 Hispanic41.6
 Non-Hispanic white19.4
 Other7.3
Cigarette smoking in the past month20.2
BMI (kg/m2)36.6 ± 8.1
Systolic blood pressure (mmHg)118.6 ± 12.3
Diastolic blood pressure (mmHg)73.2 ± 9.8
Heart rate (beats per minute)78.2 ± 11.3
On antihypertensive medications43.2
Total cholesterol (mg/dL)167.2 ± 37.0
LDL cholesterol (mg/dL)98.1 ± 30.7
HDL cholesterol (mg/dL)42.9 ± 12.5
Triglycerides (mg/dL)137.3 ± 126.4
HbA1c (%)8.8 ± 2.9
Time-weighed HbA1c (%)7.8 ± 2.0
  • Data are mean ± SD or percent.