Table 3.
Differences in general characteristics and carotid stiffness at baseline between subjects with spinal cord injury, with and without future development of hypertension (Kruskal–Wallis test)
| Variables | Subjects with SCI without HT (n=51) | Subjects with SCI who developed HT (n=6) | P | P | |
|---|---|---|---|---|---|
| Adjusted for age, SBP | Adjusted for age, SBP, BMI* | ||||
| Age (years) | 42.3±12.7 | 47.2±7.9 | 0.3 | - | - |
| BSA (m2) | 1.8±0.18 | 1.98±0.1 | 0.05 | 0.08 | - |
| BMI (kg/m2) | 23.2±3.2 | 26.9±3.5 | 0.03 | 0.017 | - |
| Waist (cm) | 88.3±12.8 | 101.4±13.3 | 0.039 | 0.06 | - |
| SBP (mmHg) | 123.1±12.5 | 129.6±16.2 | 0.4 | - | - |
| DBP (mmHg) | 72.8±10.5 | 74.18±14.4 | 0.8 | - | - |
| HR (bpm) | 67.4±14.4 | 71.3±10.3 | 0.4 | - | - |
| Pulse pressure (mmHg) | 50.3±13.6 | 55.7±15.2 | 0.4 | - | - |
| Mean BP (mmHg) | 89.6±12.7 | 92.5±18.9 | 0.7 | - | - |
| Physical activity (no/yes) | 17/33 | 2/4 | 0.5 | - | - |
| Smoker (no/yes) | 40/11 | 4/2 | 0.5 | - | - |
| β index* | 6.19±2.56 | 9.86±7.7 | 0.1 | 0.019 | 0.098 |
| Ep (kPa)* | 80.4±34.2 | 127.7±76.4 | 0.04 | 0.016 | 0.079 |
| AC (mm2/kPa)* | 0.87±0.34 | 0.73±0.29 | 0.6 | 0.5 | 0.75 |
| PWV (m/s)* | 5.4±1.1 | 6.5±1.4 | 0.04 | 0.041 | 0.71 |
*Data adjusted for BMI. SCI=Spinal cord injury, HT=Hypertension, BSA=Body surface area, BMI=Body mass index, SBP=Systolic blood pressure, DBP=Diastolic blood pressure, HR=Heart rate, BP=Blood pressure, β index=Stiffness parameter, Ep=Pressurestrain elastic modulus, AC=Arterial compliance, PWV=Pulse wave velocity