Research Article

Vascular and Myocardial Structure and Function in Adolescents with Type 1 Diabetes: The CARDEA Study

Table 2

Univariable comparisons of arterial pressure, blood lipids, and early cardiovascular markers between adolescents with and without type 1 diabetes.

AllGirlsBoys
With type 1 diabetesWithout diabetesp-ValueWith type 1 diabetesWithout diabetesp-ValueWith type 1 diabetesWithout diabetesp-Value
(n = 100)(n = 97)(n = 48)(n = 48)(n = 52)(n = 49)

Arterial pressure
 zSBP−0.51 (0.73)−0.73 (1.02)0.087−0.48 (0.66)−0.99 (0.94)0.003−0.53 (0.79)−0.47 (1.04)0.746
 zDBP−0.79 (0.58)−1.03 (0.55)0.004−0.67 (0.63)−1.05 (0.54)0.002−0.90 (0.51)−1.00 (0.56)0.334
Lipids
 HDL-c (mmol/L)1.4 (0.2)1.4 (0.3)0.7961.4 (0.2)1.5 (0.3)0.6561.35 (0.2)1.30 (0.3)0.370
 LDL-c (mmol/L)2.6 (0.8)2.4 (0.6)0.0242.9 (0.8)2.5 (0.6)0.0122.4 (0.6)2.3 (0.6)0.012
 Triglycerides (mmol/L)0.9 (0.7–1.0)0.7 (0.6–0.9)0.0040.9 (0.7–1.2)0.7 (0.6–0.9)0.0010.7 (0.6–1.0)0.8 (0.6–0.9)0.488
Arterial stiffness
 PWV (m/s)5.3 (0.7)5.1 (0.7)0.0735.3 (0.7)5.0 (0.7)0.1655.3 (0.6)5.2 (0.7)0.298
Endothelial function
 VTI (cm)24.5 (7.8)27.0 (9.6)0.05323.6 (7.1)26.1 (9.5)0.17325.3 (8.4)27.9 (9.6)0.157
 Acceleration (cm/s2)622 (169)690 (183)0.008602 (166)676 (175)0.043639 (172)704 (191)0.081
CMR
 Left ventricular ejection fraction (%)65.9 (6.1)64.9 (5.7)0.21766.0 (6.5)64.5 (5.8)0.23465.9 (5.8)65.3 (5.6)0.602
 Left ventricle mass indexed to height (g/m)64.8 (15.3)68.5 (19.9)0.15657.4 (9.2)53.4 (9.2)0.04271.5 (16.6)82.7 (16.6)0.001
 Papillary muscle mass (g)0.35 (0.14 – 0.72)0.50 (0.18 – 0.90)0.0890.29 (0.12 – 0.62)0.58 (0.16 – 1.02)0.0760.39 (0.15 – 0.81)0.47 (0.21 – 0.64)0.497
 Average wall thickness (mm)10.8 (1.9)10.8 (2.6)0.92710.2 (1.9)9.2 (1.8)0.00711.2 (1.8)12.4 (2.4)0.010

CMR, cardiac magnetic resonance; HDL-c, high-density lipoprotein cholesterol; LDL-c, low-density lipoprotein cholesterol; PWV, pulse wave velocity; VTI, velocity time integral; zDBP, diastolic blood pressure z-score; zSBP, systolic blood pressure z-score. Continuous variables are presented with means (standard deviation) or medians (25th–75th percentile) if not normally distributed. Comparisons between groups were performed using Student’s t-tests or Mann–Whitney U tests for variables not normally distributed. Results in bold indicate p-value < 0.05.