Table 1.
Sample Characteristics
| Male (n = 246) | Female (n = 254) | |
|---|---|---|
| Age (yr) | 17.7 ± 1.9 | 17.9 ± 1.9 |
| BMI (kg/m2) | 25.4 ± 5.5 | 26.4 ± 6.5 |
| Overall Baseline Levels | ||
| HR (bpm)* | 62.6 ± 8.8 | 70.8 ± 8.6 |
| PEP (ms)* | 73.2 ± 9.4 | 69.3 ± 9.3 |
| TPR (dyne-s/cm5) | 1023.7 ± 233.6 | 1025.4 ± 260.3 |
| SBP (mmHg)* | 116.0 ± 9.0 | 109.0 ± 7.5 |
| DBP (mmHg) | 68.5 ± 7.4 | 68.4 ± 6.6 |
| Overall Reactivity (Δ) | ||
| HR Δ (bpm)† | 3.2 ± 3.2 | 4.5 ± 3.6 |
| PEP Δ (ms) | −3.0 ± 3.4 | −2.6 ± 2.9 |
| TPR Δ (dyne-s/cm5)† | 118.6 ± 93.1 | 87.7 ± 94.5 |
| SBP Δ (mmHg)† | 7.0 ± 4.1 | 6.2 ± 3.3 |
| DBP Δ (mmHg)† | 6.5 ± 3.6 | 5.2 ± 3.1 |
| Stress Appraisals# | 15.4 ± 4.0 | 16.2 ± 4.1 |
Note. Data are shown as mean ± SD. BMI, Body Mass Index; HR, Heart Rate; PEP, Preejection Period; TPR, Total Peripheral Resistance; SBP, Systolic Blood Pressure; DBP, Diastolic Blood Pressure.
*
Sex difference, p < .0005.
†
Sex difference, p < .008.
#
Sex difference, p < 0.02.